EDS3090-v1.0 TGH en 20111221 - benderbenelux.nl · How to use this operating manual effectively 8...

Operating Manual

EDS3090Portable insulation fault location system

for energised and deenergised systems

Software version: D316 V1.0

TGH1420en/12.2011

© Dipl.-Ing. W. Bender GmbH & Co. KG

All rights reserved.Reprinting only with permission

of the publisher.Subject to change!

Dipl.-Ing. W. Bender GmbH & Co. KGLondorfer Str. 65 • 35305 Grünberg • GermanyPostfach 1161 • 35301 Grünberg • Germany

Tel.: +49 6401 807-0Fax: +49 6401 807-259

E-mail: [email protected]: http://www.bender-de.com

http://www.bender-de.com

Table of Contents

1. How to use this operating manual effectively ................................................... 7

1.1 How to use this manual ......................................................................................................... 7

1.2 Explanations of symbols and notes ................................................................................... 7

1.3 Chapters at a glance ............................................................................................................... 8

2. Safety instructions .................................................................................................. 9

2.1 Intended use .............................................................................................................................. 9

2.2 Device-specific safety instructions .................................................................................... 9

2.3 General safety instructions ................................................................................................... 9

2.4 Skilled persons ....................................................................................................................... 10

3. System description .............................................................................................. 11

3.1 System components ............................................................................................................ 11

3.1.1 Overview system components ........................................................................................ 11

3.1.2 List of insulation fault location system types .............................................................. 12

3.1.3 Accessories .............................................................................................................................. 13

3.2 Function of the system components ............................................................................. 14

3.2.1 PGH18... insulation fault test device ............................................................................... 14

3.2.2 Insulation fault evaluator EDS190P ................................................................................ 14

3.2.3 Measuring clamps ................................................................................................................. 14

3.2.4 Coupling device AGE185 .................................................................................................... 15

3.3 Operating principle of insulation fault location (IΔs) ............................................... 15

3.3.1 Block diagram EDS system ................................................................................................ 16

3.3.2 Test cycle .................................................................................................................................. 16

3.3.3 Terms ......................................................................................................................................... 17

3.3.4 Currents in the EDS system ............................................................................................... 17

3.4 Operating principle of residual current measurement (IΔn) ................................. 18

4. Points to be considered before use .................................................................. 19

4.1 How does an insulation fault location system work? .............................................. 19

4.2 Requirements for reliable insulation fault location .................................................. 20

4.3 Reduced test current ........................................................................................................... 22

4.4 Characteristic curves on the response sensitivity of EDS190P ............................. 22

4.4.1 Response characteristic curves for main circuits in 3AC systems ........................ 23

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Table of Contents

4.4.2 Response characteristic curves for main circuits in AC systems ........................... 24

4.4.3 Response characteristic curves for main circuits in DC systems ........................... 24

4.4.4 Response characteristic curves for control circuits in AC systems ...................... 25

4.4.5 Response characteristic curves for control circuits in DC systems ...................... 25

5. Commissioning and connection ....................................................................... 27

5.1 Decoupling the insulation monitoring device ............................................................ 27

5.2 Deenergised systems ........................................................................................................... 27

5.3 Connection to an IT system ............................................................................................... 28

6. Operation ............................................................................................................... 29

6.1 Brief description of insulation fault location (EDS mode) ....................................... 29

6.1.1 Commissioning of the PGH18... for test current supply .......................................... 29

6.1.2 Insulation fault location with EDS190P ......................................................................... 29

6.2 Operating elements of the PGH18... ............................................................................... 30

6.3 Display and operating elements of the EDS190P ...................................................... 31

6.4 Operation of the EDS190P .................................................................................................. 33

6.4.1 Switching the device on and off ...................................................................................... 33

6.4.2 Display illumination provides improved readability ................................................ 33

6.4.3 Switching between the operating modes insulation fault location IΔs and residual current measurement IΔn ......................................................................... 33

6.4.4 Display elements and their meaning ............................................................................. 34

6.5 Standard displays of the EDS190P ................................................................................... 35

6.5.1 Standard display without enclosing the cable to be measured ........................... 35

6.5.2 Standard display in the EDS mode (IΔs) with the cable enclosed ....................... 35

6.5.3 Standard display in the RCM mode (IΔn) with the cable enclosed ..................... 35

6.6 Alarms in the EDS or RCM mode ...................................................................................... 35

6.7 Indication of device and measuring errors .................................................................. 36

6.8 Factory settings EDS190P (delivery condition) ........................................................... 36

6.9 Menu structure ....................................................................................................................... 37

6.10 Navigation within the menu .............................................................................................. 37

6.11 Menu item: Settings / General .......................................................................................... 38

6.12 Menu item: Settings / IΔs .................................................................................................... 38

6.13 Menu item: Settings / IΔn ................................................................................................... 39

6.14 Menu item: Settings / system ............................................................................................ 39

6.15 Menu item: View harmonics (Harmonics) ..................................................................... 39

6.16 Practical use ............................................................................................................................. 40

6.16.1 Use as a portable insulation fault location system .................................................... 40

6.16.2 Using the EDS190P within a permanently installed EDS system ......................... 42

6.16.3 EDS309... in diode-decoupled DC systems ................................................................... 44

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Table of Contents

6.16.4 Using the EDS190P as a residual current monitor .................................................... 47

6.16.5 Measuring harmonics .......................................................................................................... 48

6.17 Coupling device AGE185 for higher voltages ............................................................. 49

6.18 Power supply of the EDS190P .......................................................................................... 50

6.18.1 Displaying the battery status ............................................................................................ 50

6.18.2 Replacing batteries or accumulators ............................................................................. 50

6.18.3 Power supply unit delivered with the system ............................................................ 50

7. Technical data ....................................................................................................... 51

7.1 Technical data of the EDS309... system ......................................................................... 51

7.2 Technical data PGH18... ...................................................................................................... 51

7.3 Technical data EDS190P ..................................................................................................... 52

7.4 Technical data measuring clamps .................................................................................. 53

7.5 Technical data AGE185 ....................................................................................................... 53

7.6 Dimension diagrams ............................................................................................................ 54

7.7 Standards ................................................................................................................................. 55

7.8 Ordering information ......................................................................................................... 56

7.9 List of components ............................................................................................................... 57

8. Frequently asked questions ............................................................................... 59

INDEX ........................................................................................................................... 61

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Table of Contents

6 TGH1420en/12.2011

1. How to use this operating manual effectively

1.1 How to use this manualThis operating manual describes how to operate the portable insulation fault location system EDS309... (with EDS190P, software version V1.0). It is designed for skilled personnel working in elec-trical engineering and electronics and in particular for those designing, installing and operating elec-trical systems.

Before using the equipment, please read this operating manual, the supplement entitled “Important safety instructions for Bender Products" and the instruction leaflets supplied with the individual sys-tem components. Please keep this documentation close at hand near to the equipment.

Should you have any questions, please do not hesitate to contact our technical sales team. We are also happy to provide on-site services. Please contact our Service Department for more information.

Service-Hotline: 0700-BenderHelp (Telefon and Fax)Carl-Benz-Straße 10 • 35305 Grünberg • GermanyTel: +49 6401-807-760 • Fax: +49 6401-807-629E-Mail: [email protected] • www.bender-de.com

Although great care has been taken in the drafting of this operating manual, it may nevertheless contain error and mistakes. The Bender Group cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual.

1.2 Explanations of symbols and notesThe following designations and symbols are used in this documentation for hazards and warnings:

Information calling attention to hazards are marked with this warning symbol.

Information intended to assist the user to make optimum use of the product aremarked with the Info symbol.

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How to use this operating manual effectively

1.3 Chapters at a glance1. How to use this operating manual effectively:

This chapter provides tips and useful information on how to use this manual.

2. Safety instructionsThis chapter describes the dangers during installation and when operating the device.

3. System description:This chapter provides an overview of the system components, a description of their function and the fundamentals of insulation fault location.The last chapter describes the function of residual current measurement.

4. Points to be considered before use:This chapter describes the practical aspects of insulation fault location and provides a number of characteristic curves for evaluation of the response values to be set.

5. Commissioning and connection:This chapter describes the connection of the EDS309... to a system to be tested.

6. Operation:This chapter provides a description of the graphical user interface of the EDS190P. In addition, you will find a representation of the menu structure and the graphical representation of vari-ous standard displays.You will also find details about the power supply of the EDS190P.

7. Technical data:In addition to the data in tabular form, you will be informed about standards and the dimen-sions of the system components.

8. Frequently asked questions:This chapter will help you to recognise faults quickly which are likely to occur and provides suggestions for trouble shooting.

9. INDEX:Use the index to look up keywords quickly.

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2. Safety instructions

2.1 Intended useThe EDS309... is a portable insulation fault location system designed to locate insulation faults in IT systems. All versions are also suitable for measuring residual currents in TN and TT systems.The EDS3096PG is particularly suitable for insulation fault location in de-energised systems.Please take note of the limits for the application area specified in the technical data. Usedeviating from or beyond the scope of this is considered non-compliant.

2.2 Device-specific safety instructions

2.3 General safety instructionsIn addition to this data sheet, the documentation of the device includes a sheet entitled "Important safety instructions for BENDER products“.

System interferences and excessively high system leakage capacitances may in-fluence the accuracy of the measurement negatively.

If the test current of the PGH18...... is too high, sensitive loads (e.g. in control cir-cuits) may be damaged or switching operations may be activated unintention-ally. Therefore, it is recommended to select a lower test current (1 resp. 10 mA).In systems with programmable controllers (PLC), only EDS3091 or EDS3091PGmay be used. The test voltage of DC 50 V in the voltage source (PGH186) integrated in the in-sulation fault location system EDS3096PG may cause interferences on sensitivesystem components. In case of doubt please consult Bender.The test current of the PGH185 or PGH186 may trigger RCDs. The test current islimited to max. 25 mA (resp. 10 mA), nevertheless, 30 mA RCDs may be triggeredbetween 15 and 30 mA.

Inside the measuring clamp, you should aim for the maximum possible symme-try of the conductors. Due to an excessively high load current, the measuring clamp can reach a satu-ration state that may cause an alarm message IΔn >10A.

If electrical interferences occur during operation, the device may trip incorrectlyand may indicate incorrect values on the display.

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Safety instructions

2.4 Skilled personsOnly skilled persons may work on Bender products. Skilled means, personswho are familiar with the assembly, commissioning and operation of the equipment and have un-dergone appropriate training. Such persons must have read this manual and understood all instruc-tions relating to safety.

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3. System description

3.1 System componentsA detailed overview of the scope of delivery is given on page 57.

3.1.1 Overview system componentsThe main task of the EDS309... is insulation fault location in IT systems. For this purpose, the individ-ual components of the EDS309... are used in combination.

1 Aluminium case with carrying strap

2 Measuring clamp PSA3020 (main circuits) or PSA3320 (control circuits)Inside diameter of the measuring clamp 20 mm

3 Insulation fault test device PGH18... to generate a test current signal for insulation fault location

4 Insulation fault evaluator EDS190P for the connection of measuring clamps and for the location of insulation faults

5 Measuring clamp PSA3052 (main circuits) or PSA3352 (control circuits)Inside diameter of the measuring clamp 52 mm

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System description

3.1.2 List of insulation fault location system types

All device versions listed below are suitable for residual current measurement in TT and TN systems (earthed systems).The different system types and the measuring tasks they can be used for are listed below:

Insulation fault location systems for main circuitsPermissible system voltage ranges for main circuits:Insulation fault location in IT systems up to AC 42...460 Hz, 20...575 V and DC 20...504 VInsulation fault location with AGE185 up to AC 42...460 Hz 500...790 V, DC 400...960 V:

EDS3090:

Applicable in IT systems where a PGH471 insulation fault test device or an IRDH575 is already installed.

EDS3090PG:

Supply voltage of the PGH185 insulation fault test device delivered with the EDS system: AC 50...60 Hz, 230 V

Applicable in IT systems where neither a PGH471 insulation fault test device nor an IRDH575 is installed.

EDS3090PG-13:

Supply voltage of the PGH185-13 insulation fault test device delivered with the EDS system:AC 50...60 Hz, 90…132 V


Permissible system voltage ranges for main circuits:Insulation fault location in IT systems up to AC 42...460 Hz, 0...575 V and DC 0...504 VInsulation fault location with AGE185 up to AC 42...460 Hz 500...790 V, DC 400...960 V:

EDS3096PG:

Supply voltage of the PGH186 insulation fault test device delivered with the EDS system:AC 50...60 Hz, 230 V

Insulation fault location, also in IT systems with all poles disconnected


EDS3096PG-13:


Insulation fault location, also in IT systems with all poles disconnected


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System description

Insulation fault location systems for control circuitsPermissible system voltage for control circuits:Insulation fault location in IT systems up to AC 42...460 Hz, 20...265 V and DC 20...308 V.

EDS3091:

Applicable in IT systems where a PGH473 insulation fault test device or an IRDH575 is already installed.

EDS3091PG:

Supply voltage of the PGH183 insulation fault test device delivered with the EDS system: AC 50...60 Hz, 230 V


EDS3091PG-13:



Insulation fault location system for main circuits and control circuits

EDS3092PG:

It consists of the same components as EDS3090PG and EDS3091PG and combines the features of the two devices.

3.1.3 AccessoriesFor details about optional accessories also refer to ordering information and the list of components on page 56 and page 57.

When working with the EDS309... only use those components which are deliv-ered with the system. In particular, do not use any other measuring clamps! This also applies to addi-tional measuring clamps or measuring current transformers from the Benderrange which are not exclusively designed for use with EDS309..... .

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System description

3.2 Function of the system components

3.2.1 PGH18... insulation fault test deviceThe PGH18... generates a defined test current signal. The test current generated in this manner de-pends on the size of the present insulation fault and the system voltage.

Depending on the switch position of the PGH185 or PGH186 the test current is limited to a max-imum of 25 mA or 10 mA respectively,

the PGH183 limits the test current to a maximum of 2.5 mA or 1 mA respectively.

In deenergised IT systems or in IT systems with a system voltage of < 50 V, the PGH186 drives a test current through an integrated voltage source (DC 50 V). In IT systems with a system voltage of > 50 V, the currently available in the system is used to drive the test current.

3.2.2 Insulation fault evaluator EDS190PThe insulation fault evaluator EDS190P provides the following measuring functions:

Insulation fault location IΔS (EDS mode) for use in IT AC systems or DC systems:

– within the portable EDS309... insulation fault location system or

– within a permanently installed EDS46.../49.... insulation fault location system.

Residual current measurement IΔn (RCM mode) for use in TN or TT AC systems. The response value range is listed in the Tabelle 3.1 auf Seite 14.

Response valueThe response value is determined by the sensitivity of the EDS190P evaluator. In DC, AC and 3AC IT systems, this is an arithmetic average value that can be set according to Tabelle 3.1 auf Seite 14. Sys-tem interferences and excessively high system leakage capacitances may have a negative influence on the accuracy.

3.2.3 Measuring clamps Measuring clamps detect the test current signal resp. the residual current. The measuring lead has a length of approximately 2 m. The connection to the EDS190P is made via a BNC connector.The most important data of the different measuring clamps are listed in the table below.

Tab. 3.1: Measuring clamps and response values for EDS190P

If measuring current transformers are to be used instead of measuring clamps, you will need the adapter delivered with the system: BNC/4 mm plug. See table on page 57.

Main circuit(EDS3090..., 3096...)

Control circuit(EDS3091...)

IT system Measuring clamps

PSA3020, PSA3052, PSA3165 PSA3320, PSA3352

Measuring range 2...50 mA 0....5 mA

Response value 2...10 mA, ±30 % / ±2 mA 0.2...1 mA, ±30 % / ±0.1 mA

TN/TT system Measuring clamps

PSA3020, PSA3052, PSA3165 PSA3320, PSA3352

Measuring range 5 mA...10 A 2 mA...2 AResponse value 10 mA...10 A 5 mA...1 A

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System description

3.2.4 Coupling device AGE185 The coupling device AGE185 extends the nominal voltage range of the insulation fault location sys-tem EDS309... . It allows connection to nominal voltage ranges up to AC 790 V resp. DC 960 V.

3.3 Operating principle of insulation fault location (IΔs)When a first insulation fault occurs in IT systems, a residual current flows which is essentially deter-mined by the system leakage capacitances. The basic concept in fault location is therefore to close the fault current circuit for a short period over a defined resistance. As a result of this principle, the system voltage itself drives a test current containing a signal that can be evaluated.

The test current is generated periodically by the PGH18... insulation fault test device (which is a com-ponent of the EDS309...PG system). Optionally, the test current can also be generated by an IRDH575 or PGH47... insulation fault test de-vice.The test current is limited in amplitude and time. As this happens, the system conductors are con-nected alternately to earth via a defined resistance. The test current generated in this manner de-pends on the value of the present insulation fault and the system voltage. The test current of the EDS3090 is limited to a maximum of 25 mA, and when Imax = 10mA is set, it is limited to 10 mA. For planning purposes, it should be noted that no system components are present in which this test current can bring about a damaging reaction, even in unfavourable cases.

The test current pulse flows from the insulation fault test device via the live parts, taking the shortest path to the location of the insulation fault. From there, it flows via the insulation fault and the earth conductor (PE) back to the insulation fault test device. This test current pulse is then detected by the measuring clamps or measuring current transformers located in the insulation fault path, and is sig-nalled by the connected insulation fault evaluator EDS190P.

You must ensure that all live conductors are routed through the measuringclamp. Do not route any PE conductors or shields of shielded conductors throughthe measuring clamp! Normal commercial measuring clamps are not suitablefor the EDS309... and must not be used.Only if these notes are observed will you obtain a true measurement result.Additional information is available in our "Transformer installation" technicalinformation.

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System description

3.3.1 Block diagram EDS system

3.3.2 Test cycleThe duration of the test current pulse cycle is 6 seconds. The PGH... alternately sends positive and negative test current pulses. The test cycle of the PGH... is shown in different switch positions (1, 2, 3) in the block diagram below (also see block diagram of the EDS system above).

EDS190P Insulation fault evaluator

PGH... Insulation fault test device

Un System voltage IT system

PSA... Measuring clamp

RF Insulation fault

PE Protective earth conductor

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System description

3.3.3 TermsIΔs Measured value of the selective fault current of the evaluator unit (EDS mode).IΔn Residual current created by an insulation fault (RCM mode).

3.3.4 Currents in the EDS systemIn addition to the block diagram on page 16, the path of the residual currents and the test current is illustrated in the diagram below:

The following residual currents flow through the measuring current transformer of the EDS... :

The test current IΤ caused by the insulation fault RF-N

Residual currents IΔn flowing through the system leakage capacitances CE-V and CE-N resp. caused by RF-V and RF-N,

Transient leakage currents caused by switching and control activities in the system,

Low-frequency leakage currents caused by the use of converters

............. Test current loop IT

.. .. .. .. Residual currents IΔn (example)

CE-VUpstream capacitances, system leakage capacitances upstream the meas-uring current transformer

CE-NDownstream capacitances, system leakage capacitances downstream the measuring current transformer

RF-V Insulation fault upstream the measuring current transformer

RF-N Insulation fault downstream the measuring current transformer

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System description

3.4 Operating principle of residual current measurement (IΔn)In the RCM mode, the EDS309... operates according to the principle of residual current measure-ment. In this case, only the evaluator unit EDS190P with the measuring clamp is used, the PGH18... insulation fault test device is not required.

In accordance with Kirchhoff's Law, the sum of the inflowing currents at every intersection in a sys-tem is equal to the sum of the outflowing currents.

Fig. 3.1: The two currents Ito and Ifrom are equal in quantity but have different directions, so that the resultant sum is zero. The EDS190P recognises this, no message is generated.

Fig. 3.2: A portion of the current is flowing away via an insulation fault RF. The sum of the currents is no longer zero. If the residual current is equal to or greater than the response value,

the EDS190P will generate a message.

In the RCM mode, residual currents can be measured in one and three-phase TTor TN systems. If the system leakage capacitance upstream of the measuringclamp is sufficiently high, the EDS190P can also be used for measurements in oneand three-phase IT systems. Its suitability for this purpose must be checked ineach individual case.

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4. Points to be considered before use

4.1 How does an insulation fault location system work?An insulation fault location system consists of a PGH18...insulation fault test device and an EDS190P insulation fault evaluator in combination with a PSA3.... measuring clamp.

Functional sequence

Start insulation fault location by activating the PGH18... insulation fault test device

The PGH18... insulation fault test device for a short period connects the live conductors to earth via an electronic current limiting device.

A test current IT which is dependent on the system voltage and on the value of the insulation fault flows and closes the fault current circuit. The test current is limited to a maximum value of 25 mA resp. 10 mA (PGH185/186) or 2.5 mA resp. 1 mA (PGH183).

The test current pulse flows from the insulation fault test device via the live conductors, the insulation fault RF and the earth conductor (PE conductor) back to the insulation fault test device.

This current pulse can be detected by enclosing the outgoing conductors of the distribution point, located in the current circuit, with the measuring clamp and can be evaluated with the EDS190P insulation fault evaluator.

By measuring along the cable with the measuring clamp, the point of the fault can be located precisely.

Fig. 4.1: Function of the EDS system

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Points to be considered before use

4.2 Requirements for reliable insulation fault locationThe task of the insulation fault evaluator is to detect insulation faults downstream of the measuring clamp RF-N. It is designed to recognise reliably the test current caused by the insulation fault for this purpose.Requirements:

The insulation fault must be present for at least 30 seconds.

The test current range:

– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG is: It = 2...50 mA

– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13 is: It = 0.2...5 mA

The upstream capacitances CE-V must be at least as large as the downstream capacitances CE-N.

The total system leakage capacitance must not exceed the following values:

– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG: up to 30.000 μFV (product of the system leakage capacitance and nominal system voltage)

– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13: up to 1.000 μFV (product of the system leakage capacitance and nominal system voltage)

The sum of the test current and residual current flowing through the measuring clamp and the measuring current transformer must not exceed the following values:

– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG-13: 10 A

– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13: 1 A

There must not be any connections to other sub-distributions downstream a measuring clamp or an installed measuring current transformer, see the illustration below.

Fig. 4.2: Connections between sub-distributions lead to measuring errors

Not only does the value of the residual current influence the reliable detection of the test cur-rent but also the respective frequency of the residual current. Residual currents deviating from the system frequency may be caused by the use of frequency converters, for example. The behaviour of the EDS309... is described in the fault curve illustrated below:

– When the measured residual current values exceed a value of 10 A in main circuits, the EDS190P outputs the alarm message „IΔn>10A“. This applies to nominal system frequencies of 50/60/400 Hz for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG and EDS3096PG-13.

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– When the measured residual current exceeds a value of 1 A in control circuits, the EDS190P outputs the alarm message IΔn>1A“. This applies to nominal system frequencies of 50/60/400 Hz forEDS3091, EDS3091PG and EDS3091PG-13.

– When residual currents of nominal system frequencies below 50 Hz occur, the message "Fault" will be generated.Example: When a residual current of 2 A with a frequency of 20 Hz occurs (red dot in the diagram), the insulation fault location system is outside the permissible measuring range and the mes-sage "Fault" appears on the display of the EDS190P.

Fig. 4.3: A residual current value of 2 A is outside of the permissible frequency range (red dot)

Sub-distributions downstream of the measuring clamp must not be galvanicallyconnected with each other, because such connections create disturbing residualcurrents.As a result, the message "Fault" or "IΔn>10A“ may be output, for example.

Symmetrical insulation faults downstream of the measuring current transform-er may not be recognised under certain circumstances. Low-frequency residualcurrents (caused by converters, for example) may have the effect that insulationfaults cannot be found when their frequency is equal or nearly equal the test cy-cle frequency of the PGH186.

Cables leading to the same load in parallel are to be passed together through themeasuring clamp during the measurement.

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4.3 Reduced test currentEspecially in DC control voltage systems in the power station and energy supply utility sector, relays or SPCs might be installed which switch already in case of relatively low currents. In such a case, the switch Imax on the PGH18... must be moved to 10/1 mA position. The test current limiting values 10 mA and 25 mA indicated on the switch only applies to DC systems.Prior to measurements with the EDS3090.. with reduced test current (switch position 10/1 mA), it is also necessary to check whether any sensitive system components can be caused to operate unin-tentionally.

4.4 Characteristic curves on the response sensitivity of EDS190PThe type of supply system, system voltage, system frequency, leakage capacitance and test current have an effect on the response sensitivity of the EDS system. The value of the test current can be set at the PGH18... insulation fault test device. Resulting from the type of supply system, the real test cur-rent in AC systems is lower than the setting. In comparison to DC systems, the factor is 0.5 in AC sys-tems respectively 0.67 in 3AC systems. For use in AC and 3AC systems, set the response value at the EDS190P as follows:

Tab. 4.1: Settings on the insulation fault location system

For details on the setting of the response value, refer to “Setting menu 3: (Settings IΔs) on page 37. The response values are shown as characteristic curves. The maximum deviation can be +/- 30 %, in-cluding the tolerances of the measuring clamps. The characteristic curves apply to the respective nominal voltage indicated in the diagram.If the nominal voltage of the system being monitored is different from the nominal voltage shown in the diagram, the response values may change proportionally. Nominal voltages changing dynam-ically during operation or in case of superimposed alternating currents that deviate from the system frequency (e.g. caused by frequency converters) or superimposed direct currents may result in re-sponse values that are outside the range displayed in the diagram.

The following curves makes light work of determining a correct and practical response value for this EDS190P. When the insulation monitoring device shows an alarm message in a system being moni-tored, manual insulation fault location can be started. Proceed as follows:

1. Select the characteristics (3 AC, AC, DC) that are appropriate for your type of distribution sys-tem.

Application Main circuit Control circuit

Insulation fault location system

EDS3090EDS3090PG

EDS3090PG-13EDS3096PG

EDS3091 EDS3091PG

EDS3091PG-13

Setting EDS190P Maximum test current Menu 2.5: IΔs max

max. 50 mA max. 5 mA

Setting PGH18...Test current IT

25 mA(PGH185/186)

2.5 mA(PGH183)

Response range EDS190PMenu 3.2

2...10 mA 0.2...1 mA

Setting PGH18...Reduced test current IT

10 mA(PGH185/186)

1 mA(PGH183)

Response range EDS190PReduced test currentMenu 3.2

2...5 mA 0.2...0.5 mA

22 TGH1420en/12.2011


2. From these, select the diagram that best matches the desired system voltage.

3. Calculate the anticipated leakage capacitance of the system being monitored. Insulation mon-itoring devices of the IRDH... series can display the value of the leakage capacitance (press the INFO key). Apply this value to the diagram in the form of a vertical line.If it is not possible to query the leakage capacitance, the respective highest value is to be taken from the characteristic curve.

4. The curves show the response sensitivity values 2 mA, 5 mA and 10 mA set for the EDS190P for main circuits and 0.2 mA, 0.5 mA and 1 mA for control circuits. Values above the respective curve cannot be detected. Values and characteristics that fall between the top and bottom characteristics can be roughly determined on the basis of those actually provided.

5. Set the respective response value on the EDS190P.

6. The curves for DC 24 V and AC 42 V do not apply to the EDS3096 because the insulation fault test device works with its own test voltage of DC 50 V. For this reason, the curves for DC 60 V and AC 110 V are valid for these nominal voltages.

4.4.1 Response characteristic curves for main circuits in 3AC systems

3AC 230 V

0

10

20

30

40

50

60

70

80

0 50 100 150Ce [µF]

Re

[kO

hm]

2mA5mA10mA

3AC 400 V

0

20

40

60

80

100

120

140

0 20 40 60 80 100

Ce [µF]

Re

[kO

hm]

2mA5mA10mA

3AC 500 V

020406080

100120140160180200

0 10 20 30 40 50 60Ce [µF]

Re

[kO

hm]

2mA5mA10mA

3AC 690 V

0

50

100

150

200

250

0 10 20 30 40 50Ce [µF]

Re

[kO

hm]

2mA5mA10mA

23TGH1420en/12.2011


300e [µF]

2mA5mA10mA

100e [µF]

2mA5mA10mA

0Ce [µF]

2mA5mA10mA

150

e [µF]

2mA5mA10mA

4.4.2 Response characteristic curves for main circuits in AC systems

4.4.3 Response characteristic curves for main circuits in DC systems

AC 42 V

0

2

4

6

8

0 50 100 150 200 250 300

Ce [µF]

Re

[kO

hm]

2mA5mA10mA

AC 110 V

0

5

10

15

20

25

0 50 100 150 200 250C

Re

[kO

hm]

AC 230 V

05

101520253035404550

0 50 100 150Ce [µF]

Re

[kO

hm]

2mA5mA10mA

AC 400 V

0

20

40

60

80

100

0 20 40 60 80C

Re

[kO

hm]

DC 24 V

0123456789

10

0 100 200 300 400 500

Ce [µF]

Re

[kO

hm]

2mA5mA10mA

DC 60 V

0

5

10

15

20

25

30

0 100 200 30

Re

[kO

hm]

DC 110 V

0

10

20

30

40

50

60

0 50 100 150 200 250 300Ce [µF]

Re

[kO

hm]

2mA5mA10mA

DC 230 V

0102030405060708090

100

0 50 100

C

Re

[kO

hm]

24 TGH1420en/12.2011


4.4.4 Response characteristic curves for control circuits in AC systems

4.4.5 Response characteristic curves for control circuits in DC systems

AC 42 V

0

20

40

60

80

0 5 10 15 20 25Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1,0mA

AC 110 V

0

50

100

150

200

0 2 4 6 8 10Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1,0mA

AC 230 V

0100200300400500600

0 1 2 3 4 5 6Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1,0mA

DC 24 V

0102030405060708090

100

0 10 20 30 40 50 60Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1mA

DC 60 V

0

50

100

150

200

250

0 5 10 15 20Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1,0mA

DC 110 V

0

100

200

300

400

500

0 2 4 6 8 10Ce [µF]

Re

[kO

hm]

0,2mA0,5mA1,0mA

DC 230 V

0

200

400

600

800

0 1 2 3 4 5 6Ce [µF]

Re

[kO

hm] 0,2mA

0,5mA1,0mA

25TGH1420en/12.2011


26 TGH1420en/12.2011

5. Commissioning and connection

5.1 Decoupling the insulation monitoring deviceWhile insulation fault location is being undertaken with the EDS309..., an existing insulation moni-toring device must be disconnected from the system for the duration of the fault location, if its inter-nal resistance Ri is < 120 kΩ. This must be done by effecting an all-pole interruption of the system coupling, it is not sufficient to switch off the supply voltage to the insulation monitoring device. When a device is used with an Ri of ≥ 120 kΩ, the influence is negligible, and in this case there is no need to disconnect. However, take into consideration that the PGH influences the measurements of the insulation monitoring device.

5.2 Deenergised systemsFor insulation fault location in deenergised systems with EDS3096PG, the integrated voltage source (G) of the PGH186 provides a test voltage of DC 50 V. The test voltage DC 50 V supplied by the PGH186 is available at the socket L1(+). Make sure that this socket is connected to the system to be monitored. Only in this way, the integrated voltage source of PGH186 will be available.

Prior to commissioning make sure that the supply voltage of the PGH18... and ofthe power supply unit (as appropriate) corresponds to the voltage of the supply-ing system. When the devices are operated with wrong supply voltage, the devic-es may be damaged.

Prior to commissioning, please check that all system components are connectedto each other.

Please note that all live conductors of the system to be searched must be con-nected to each other via loads or the deenergised power supply.

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27TGH1420en/12.2011

Commissioning and connection

5.3 Connection to an IT systemConnect the EDS309... as described below:

If the terminals L1, L2, L3 (resp. L1, L2) of the device are connected to a live systemunder operation, the terminal must not be disconnected from the protectiveconductor (PE).

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28 TGH1420en/12.2011

6. Operation

6.1 Brief description of insulation fault location (EDS mode)

6.1.1 Commissioning of the PGH18... for test current supply1. First, connect the PGH18... to the PE of the system to be checked, see page 28

2. Then connect the PGH18... to active conductors

3. Connect the device to US and switch it on

If the test current IT is to be generated by an IRDH575, its menu item EDS-Setup has to be set to EDS=On.

6.1.2 Insulation fault location with EDS190P1. Connect the measuring clamp to the EDS190P

2. Switch the device on with the On/off button

3. A self test is carried out, wait until the message OK appears

4. Check whether the right measuring clamp has been set on the EDS190P

5. Enclose the PE conductor between PGH18... (IRDH575) and/or the PE bar with the measuring clamp in order to prove the test current IT

6. Enclose the functionally related active conductors of the respective sub-distributions with the measuring clamp.Warning! Do not enclose the PE!

7. Read and evaluate the measured value.If the set response value has been exceeded, the message alarm appears on the displaywith the alarm LED flashing.

29TGH1420en/12.2011

Operation

6.2 Operating elements of the PGH18...

1 ON/OFF switch, activates the test current

2 Selector switch for the maximum test current 25 / 10 mA or 2.5 / 1 mA

3 Not visible: Magnetic adhesive strip at the back of the enclosure for fixing to metal parts (e.g. switchboard cabinet)

4 3 sockets for system coupling

5 Socket for PE connection

6

LED indicators:Power ON LED

Indication of the positive test cycle of the test currentIndication of the negative test cycle of the test current

7 Microfuse 100 mA

8 Panel plug for supply voltage

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30 TGH1420en/12.2011

Operation

6.3 Display and operating elements of the EDS190P

1 Connection for external power supply unit DC 6 V

2 BNC connection for the measuring clamp

3 LC display, illuminated3 lines a 16 characters

4 Alarm LED, lights when the response value is exceeded

5Button for the selection of the operating mode:IΔS = Insulation fault location in IT systems (EDS mode)IΔn = Residual current measurement in TN-S systems (RCM mode)

6

Button to select the measuring current transformerfor ITmax = 50 mA: for ITmax = 5 mA:P20 = PSA3020 = PSA3320P52 = PSA3052 = PSA3352P165 = PSA3165 ---------------W/WR = W.... / WR.... = W...-8000WS = WS.... = W...-8000

7

INFO key:- Device type- Software version- Current response values IΔS and IΔn - Setup statusESC key:Exits the menu function without changing parameters

1

2

3

456

78

910

1112

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31TGH1420en/12.2011

Operation

8

MENU key: To start the Menu modeEnter key: To confirm changed parameter values or the selected menu items

9 On-Off button

10 Illumination button: On /Off switching of the display illumination

11 RESET button: To clear the fault memoryDOWN key: To move down in the menu, to decrease the parameter value

12 HOLD button: To save the measured valueUP key: To move up in the menu, to increase the parameter value

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32 TGH1420en/12.2011

Operation

6.4 Operation of the EDS190P

6.4.1 Switching the device on and off1. Prior to commissioning, connect a measuring clamp (e.g. PSA3052) to the EDS190P!

2. Switch the device on by means of the On/Off button.Once the device is switched on, the self test is started.When the self test runs correctly, the message "Test OK“ appears on the display.The device is factory set to the EDS mode.

Press the On/Off button for approximately 2 seconds to switch the device off.

Fig. 6.1: Starting sequence of the EDS190P

6.4.2 Display illumination provides improved readabilityPress the illumination button on the bottom left in order to improve the readability of texts and sym-bols.By pressing the button again the illumination can be switched off.

6.4.3 Switching between the operating modes insulation fault location IΔS and resid-ual current measurement IΔn

Here, the measuring functions can be selected. IΔn for residual current measurement preferably for TN-TT systems. IΔs for insulation fault location in IT systems.Avoid changing the operating mode during insulation fault location.

EDS190P

BENDER GmbH&CoKG

D-35305 Grünberg

EDS190P

Self-test

EDS190P

Self-test

TEST OK

>> >> >> >>

1. Display indication when starting for approx. 3 s



33TGH1420en/12.2011

Operation

6.4.4 Display elements and their meaningInsulation fault location is carried out in the EDS mode, as illustrated in the figure below.

1 Progress bar to show the measurement progress in the EDS mode

2

Indication of the test current pulse:= positive impulse, idle time, = negative impulse

3 Type of distribution system: AC, DC

4 Hold function activated; Measured value indication "frozen“

5 Charge status of the accumulators

6 Alarm output activated via LED

7 Loudspeaker symbol visible: An existing alarm will also be output acoustically.

8 Fault memory M is activated

9

Selected measuring current transformerfor ITmax = 50 mA: for ITmax = 5 mA:P20 = PSA3020 = PSA3320P52 = PSA3052 = PSA3352P165 = PSA3165 ---------------W/WR = W.... / WR.... = W...-8000WS = WS.... = W...-8000

10Selection of the measuring sensitivity

= Control circuit = ITmax = 5 mA

= Main circuit = ITmax = 50 mA

11 IΔn = Indication of the currently flowing residual current

12 IΔS = Indication of the currently flowing test current

1

2

3

45678910

11

12

34 TGH1420en/12.2011

Operation

6.5 Standard displays of the EDS190P

6.5.1 Standard display without enclosing the cable to be measuredThe device is in the EDS mode (IΔS ).IΔS will not be indicated, because no conductor is enclosed with the measuring clamp.

6.5.2 Standard display in the EDS mode (IΔS) with the cable enclosedThe display shows a measured fault current IΔS of 10 mA. A new measurement is being carried out. This is indicated by the progress bar represented as an angle.

Please note that only 50% of the value of the test current IT created by the PGH18... in AC systems is indicated by the EDS190P. One-way rectifiers used in the PGH18... decreases the indicated value in AC systems to 50 %, in 3AC systems to 67 %.

6.5.3 Standard display in the RCM mode (IΔn) with the cable enclosedThe display shows a measured residual current IΔn of 160 mA.The set residual current response value is 1000 mA.

The following display shows a standard indication with menu item "4.Harmonics on“ activated. This setting is only possible for systems with a frequency of 50 Hz and 60 Hz. The display shows a measured current of 4 mA as well as harmonic distortion of 64 % for the first harmonics.

6.6 Alarms in the EDS or RCM modeWhen one of the set response values IΔs or IΔn are exceeded, the message alarm appears on the dis-play.

Alarm during insulation fault loca-tion

Alarm during an RCM measurement

I s = 0mAI n < 100mA

>> >> >>

M H ACP52

I s = 10mAI n < 100mA

>> >> >>

M H ACP52

I n = 160mAResp. = 1000mA

M H ACP52

I n = 6.0mAH1=4mA

M H 50HzP52

THD=64%

I s = 10mANext Measurement

Alarm

M H ACP52

I n = 160mAResp. = 100mA

M H ACP52

Alarm

35TGH1420en/12.2011

Operation

6.7 Indication of device and measuring errorsFault messages possible to occur are explained in the table below.

6.8 Factory settings EDS190P (delivery condition)Most of the parameters are set in the menu. If this is not the case, the setting is market with (button).

Button operating mode: IΔs (EDS mode = insulation fault location)Button transformer selected: Measuring clamp PSA3052 (EDS3090 and 3096)

Measuring clamp PSA3352 ( EDS3091)Button illumination: offMemory: offAlarm LED: onBuzzer: onTest current ITmax: 50 mA (EDS3090 and 3096)

5 mA (EDS3091)Response value (for IΔs): 5 mA (EDS3090 and 3096)

500 μA (EDS3091)Type of distribution system (for IΔs): ACSystem with converter (for IΔs): noResponse value (for IΔn): 100 mASystem frequency (for IΔn): 50 HzMeasurement of the harmonics (for IΔn): offLanguage in the display: EnglishTime: CET

No measuring clamp or no measuring current transformer at the measuring input or wrong meas-uring current transformer connectedActions:Connect the appropriate measuring clamp or measuring current transformer

Short circuit in the measuring clamp or measuring current transformer or wrong transformer type connected.Actions:Connect intact and appropriate measuring clamp

A fault occurred during insulation fault location (EDS mode).

Possible causes:The measuring clamp is not held steady.

A residual current is flowing through the measur-ing clamp which disturbs the measurement.

A magnetic field exists in the vicinity of the measur-ing clamp which disturbs the EDS measurement.

No CT connected

M H ACP52

Short Circuit CT

M H ACP52

I s = 0mAI n < 100mA

Fault

M H ACP52

36 TGH1420en/12.2011

Operation

6.9 Menu structureA schematic sketch of the menu structure is shown below.

6.10 Navigation within the menu

Level 1 Level 2 Level 3

1. Exit

2. Settings 1. Exit

2. General 1. Exit2. Memory: on/off3. Buzzer: on/off4. AlarmLED: on/off5. ITmax: 5mA / 50mA

3. IΔs 1. Exit2. Resp.: 2...10mA / 200...1000μA3. System type: AC/DC4.Inverter: yes / no

4. IΔn 1. Exit2. Resp: 10...10000mA3. Freq: 50Hz / 60Hz / up to 2kHz4. Harmonics: on/off

5. System 1. Exit2. Language: German / English / French3.Clock

3. View harmonics1. Exit2. H1= 0 mA3. H2= 0 mA.....9. H8= 0 mA10. H9= 0 mA

This menu item exclusively serves the purpose of displaying the harmonics from H1 to H9.If you want to view the occurring harmonics in the standard display outside the menu, you have to activate the menu item "4. Harmonics:

4. ServiceFor service purposes only

- Starting the menu mode with MENU- Selection of the menu item or confirming a a value with Enter

- Navigating up or down in the menu- increasing or decreasing values

ESC:- To exit the selected menu item- To exit the modified setting without saving

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37TGH1420en/12.2011

Operation

All menu descriptions below are based on the factory settings. These settings are given in brackets after the menu items of level 3.

6.11 Menu item: Settings / GeneralAlarms are always signalled on the display. In delivery condition, alarms are also signalled by an alarm LED and a buzzer. You can use these menu items to set whether:

alarms are to be saved

alarms are not to be signalled acoustically

alarms are not to be signalled by an alarm LED

the measuring sensitivity of the EDS190P is to be adapted to the test current of a control or main circuit. A maximum test current IT of 5 mA is to be used for control circuits, and maximum test current of 50 mA for main circuits.

6.12 Menu item: Settings / IΔsUse this menu item to set all relevant parameters for insulation fault location:

the IΔS response value for control circuits in the range of 200...1000 μA.This value range is specified by the value ITmax = 5 mA.Or the IΔS response value for main circuits in the range of 2...10 mA.This value range is specified by the value ITmax = 50 mA.

Adaption to the system to be monitored: AC or DC.

Select yes, if a converter is operated in the system to be monitored.


2. Settings 1. Exit

2. General1. Exit2. Memory: on / off (off )3. Buzzer: on / off (on)4. AlarmLED: on / off (on)5. ITmax: 5mA / 50mA (50mA), (EDS3090/3096) (5mA), (EDS3091)


2. Settings 1. Exit

3. IΔs 1. Exit2. Response value: 2...10mA / 200...1000μA3. Supply system: AC/DC4. Inverter: yes / no

38 TGH1420en/12.2011

Operation

6.13 Menu item: Settings / IΔnUse this menu item to set all relevant parameters for residual current measurement:

Set the IΔn response value between 10 mA and 10 A.

Set the frequency of the system being monitored here.

If you want to view the currents of the occurring harmonics on the standard display, activate the menu item "4. Harmonics“. When the Harmonics menu has been activated, please note that only system frequencies of 50 Hz and 60 Hz can be selected.

6.14 Menu item: Settings / systemUse this menu item to select the appropriate display language and set the correct date and time. For setting the date, different formats can be selected.

6.15 Menu item: View harmonics (Harmonics)This menu item exclusively serves the purpose of displaying the harmonics from H1 to H9.


1. Exit

2. Settings 1. Exit

4. IΔn 1. Exit2. Resp.: 10...10000mA3. Freq.: 50Hz / 60Hz / up to 2kHz4. Harmonics: on/off


1. Exit

2. Settings 1. Exit

5. System 1. Exit2. Language: German / English / French3.Clock


1. Exit

3. View Harmonics 1. Exit2. H1= 0 mA3. H2= 0 mA.....9. H8= 0 mA10. H9= 0 mA

This menu item exclusively serves the purpose of displaying the harmonics from H1 to H9.If you want to view the occurring harmonics in the standard display outside the menu, you have to activate the menu item "4. Harmonics: on/off“.

39TGH1420en/12.2011

Operation

6.16 Practical use

6.16.1 Use as a portable insulation fault location systemThe primary application of the EDS309... is as a portable insulation fault location system in IT systems. After all the information of the chapter “Points to be considered before use” auf Seite 19 has been considered, the actual fault location operation may be started. Proceed as follows:

1. Check that the nominal system voltage is within the permissible limits.

2. Connect up the PGH18... near the supply input. When you do this, you must comply with the general guidelines for live work!

– Before making a connection to the system to be checked, connect the green-yellow con-ductor over the PE socket of the PGH18... with the PE of the system.

– Only then, connect the PGH18... to the system to be checked using the connecting cable supplied with the device

3. Connect the PGH18... to a suitable supply voltage (see nameplate) using the power supply cable supplied with the device.

4. If the insulation monitoring device which is present in the IT system has an internal resistance of < 120 kΩ, effect an all-pole interruption of the system coupling. It is not sufficient to switch off the supply voltage to the insulation monitoring device.

5. Set the switch position Imax on the PGH18.... Refer to the instructions in the chapter “Reduced test current” auf Seite 22.

6. Switch the PGH18... on. The "ON" LED must light up, the two LEDs " " and " " must light up in time with the cycle and then go out again. If the LEDs fail to show any activity whatso-ever, the supply voltage and the microfuse installed in the PGH18... should be checked.

7. Connect a suitable measuring clamp or a measuring current transformer to the EDS190P.

8. Switch on the EDS190P by pressing the On/Off button.

9. Make the following settings:

– Select the function IΔS (EDS mode) by pressing the button

– Set the maximum sensitivity:50 mA for main circuits for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG-13, the meas-uring clamps PSA3020, PSA3052, PSA3165 and the measuring current transformers W/WR…, WS… .5 mA for control circuits for EDS3091, EDS3091PG, EDS3091PG-13, the measuring clamps PSA3320, PSA3352 and the measuring current transformers W…8000, WS…8000

– Select the measuring clamp or the measuring current transformer to be used with the but-ton.

– Set the supply system of the system to be monitored in the menu 2.3 (setting IΔs).

– Select yes in menu 3 (setting IΔs) if frequency converters are connected to the sub-distribu-tions to be checked.

10. When using measuring clamps please note:

– Do not connect the core of the measuring clamp to system voltages above the nominal insulation voltage.

– Keep the contact surfaces of the measuring clamp clean.

Three-phase system Connect the sockets L1, L2 and L3.

Single-phase system AC or DC Connect the sockets L1 and L2.

40 TGH1420en/12.2011

Operation

– The measuring clamp should not be used in the immediate vicinity of devices which gener-ate magnetic fields, such as transformers or throttles, nor in the vicinity of adjacent conduc-tors with high operating currents.

– Do not disconnect the measuring clamp from the EDS190P when live conductors are routed through the measuring clamp. Failure to observe this can destroy the measuring clamp!

– Inside the measuring clamp, you should aim for the maximum possible symmetry of the conductors. Due to excessive load current, the measuring clamp can reach a saturation state that may cause an alarm message IΔn >10 A.

– Keep the measuring clamp steady during the measurement!

– Make sure that you do not exert any pressure on the measuring clamp arms.

11. Enclose the green-yellow conductor with the measuring clamp between the PGH18... and earth. When the EDS190P does not react, the insulation fault is too high and cannot be found. Recognised test current pulses are indicated by the symbol .

12. Start insulation fault location at the main distribution point in the IT system. Enclose all system conductors, but not the PE conductor, with the measuring clamp. For each measurement, wait for one test cycle (approx. 30 seconds). An alarm message on the EDS190P display signals an insulation fault downstream of the measuring clamp. It is recommended to carry out fault loca-tion with the buzzer activated. The EDS190P can display the following messages during insulation fault location:

– No CT connected:Measuring clamp or measuring current transformer not connected or defective.

– Fault:The measuring clamp is not held steady.A residual current disturbing the EDS measurement is flowing through the measuring clamp.A magnetic field exist in the vicinity of the measuring clamp which disturbs the EDS meas-urement.In these cases, the insulation fault cannot be located in the respective sub-distributions resp. at the location of measurement.

– IΔn >10A / >1A:A residual current of > 10 A bzw. >1A flows through the measuring clamp. In this case, the insulation fault cannot be located in the respective sub-distribution. Residual currents of this size occurring in an IT system can be caused by high system leakage capacitances or by multiple insulation faults. Therefore, it is possible that this alarm message also signals an insulation fault in this sub-distribution.

– >>>>:Measurement is running, this display shows the progress of the measurement. This process will be completed after approximately 30 seconds.

– Next measurement:No insulation fault found in this sub-distribution. The measuring clamp or the measuring current transformer can be moved to the next sub-distribution.

– Alarm ...mA:An insulation fault has been detected in this sub-distribution. Measurement should be con-tinued along this conductor.

13. Measure along the conductor with the EDS190P until the fault is found. Penetrate radially into the sub-distributions as you do this. The fault location is found when the test current gener-ated by the PGH18... downstream of the measuring clamp at least exceeds the preset response

41TGH1420en/12.2011

Operation

value of the EDS190P.

6.16.2 Using the EDS190P within a permanently installed EDS systemThe EDS190P can also be used in a permanently installed EDS system (EDS460/490 resp. EDS461/491). In extended IT systems with a number of sub-distributions, often only the main distributions are monitored by a permanently installed EDS system. When the main distribution where the insu-lation fault exists is recognised, the search will be continued from that point using the EDS190P. For this purpose, the EDS190P uses the test current pulse of the permanently installed EDS system (IRDH575, PGH47...). The PGH18... is not required for this application. The scope of delivery of the EDS3090 and EDS3091 systems does not include a PGH18.... Insulation fault location can only be car-ried out in energised IT systems. Also observe the operating instructions of the permanently installed EDS system.

Example: The insulation monitoring device has signalled an insulation fault below its response value and has started the permanently installed EDS system. The main distribution affected by an insula-tion fault has been recognised. Continue insulation fault location as follows:

1. Set the EDS system mode to permanent insulation fault location:

– IRDH575: Set "EDS on"

– PGH471: Press the "Start/Stop" button

2. Connect a suitable measuring clamp to the EDS190P.



–Select function IΔs (EDS mode) with the button

–Set the maximum sensitivity:50 mA for main circuits for EDS460/490 for the measuring clamps PSA3020, PSA3052, PSA3165 and the measuring current transformers W/WR…, WS…5 mA for control circuits for EDS461/491 for the measuring clamps PSA3320, PSA3352 and measuring current transformers W…8000, WS…8000


– Set the supply system of the system to be checked in the menu 2.3 (setting IΔs).

– Select yes in menu 2.3 (setting IΔs) if frequency converters are connected to the sub-distri-butions to be tested.

5. When using measuring clamps, please note:


For operating currents < 10 A, it is also possible to enclose one conductor only.For currents > 10 A, this may produce the effect that the measuring clamp can nolonger be opened. This danger is particularly present in DC systems. If this behav-iour occurs, under no circumstances use force, since this would destroy the meas-uring clamp. Instead, you must disconnect the respective system. After this hasbeen done, the measuring clamp can be opened without the application offorce.

42 TGH1420en/12.2011

Operation



– Do not disconnect the measuring clamp from the EDS190P when live conductors are enclosed by the measuring clamp. Otherwise the measuring clamp may be destroyed!

– Inside the measuring clamp, you should aim for the maximum possible symmetry of the conductors. Due to excessively high load current, the measuring clamp can reach a satura-tion state that may cause an alarm message IΔn >10A.



– Enclose the green-yellow conductor with the measuring clamp between the IRDH575 resp. PGH47... and earth. When the EDS190P does not react, the insulation fault is too high and cannot be found. Recognised test current pulses are indicated by the symbol .

6. Start insulation fault location in the sub-distribution of the IT system recognised to be faulty. Enclose all system conductors, but not the PE conductor, with the measuring clamp. For each measurement, wait for one test cycle (approx. 30 seconds). An alarm message on the EDS190P display signals an insulation fault downstream of the measuring clamp. It is recommended to carry out fault location with the buzzer activated. The EDS190P can display the following messages during insulation fault location:

– No CT connected:Measuring clamp or measuring current transformer not connected or defective.

– Fault:Measuring clamp is not held steady. A residual current flows through the measuring clamp affecting the EDS measurement.A magnetic field exist in the vicinity of the measuring clamp which disturbs the EDS meas-urement.In these cases, the insulation fault cannot be located in the respective sub-distributions resp. at the location of measurement.

– Idn >10A / >1A:A residual current of > 10 A resp. >1A flows through the measuring clamp. In this case, the insulation fault cannot be located in the respective sub-distribution. Residual currents of this size occurring in an IT system can be caused by high system leakage capacitances or by multiple insulation faults. Therefore, it is possible that this alarm message also signals an insulation fault in this sub-distribution.

– >>>>:Measurement is running, this display shows the progress of the measurement. This process will be completed after approximately 30 seconds.

– Next measurement:No insulation fault found in this sub-distribution. The measuring clamp or the measuring current transformer can be moved to the next sub-distribution.

– Alarm ...mA:An insulation fault has been detected in this sub-distribution. Measurement should be con-tinued along this conductor.

7. Measure along the conductor with the EDS190P until the fault is found. Penetrate radially into the sub-distributions as you do this. The fault location is found when the test current through the measuring clamp generated by the IRDH575 resp. PGH47... at least exceeds the preset response value of the EDS190P.

43TGH1420en/12.2011

Operation

6.16.3 EDS309... in diode-decoupled DC systemsIn some applications DC systems are diode decoupled. Between these decoupled circuits compen-sating currents may occur. The quantity of the currents and its direction depend on the system volt-age, the characteristics of the diodes and the kind of loads installed in the system. When the EDS309... insulation fault location system is used in such systems, the aforementioned compensating currents will disturb the EDS309... and will cause measuring faults. Therefore Bender recommends the use of the EDS309... in diode decoupled systems according to the drawing illustrat-ed on the following page.

Please consider the following:

Always use two identical measuring clamps. Note: do not forget to set the correct measuring clamp in the corresponding menu of the EDS190P.

For this purpose, use the EDS190P-Set (see ordering information).

Do not exceed the max. length of the coaxial cable of 10 m (per measuring clamp).

Using two measuring clamps will reduce the sensitivity of by 10 %.

Always use the two measuring clamps in a way, that the energy flow direction corresponds to the marking on the measuring clamp P1 => P2.

The central insulation monitoring device has indicated an insulation fault which is below the insula-tion value that can be detected with the EDS system. Please consider the information given in "chapter 4. Points to be considered before use" and then start insulation fault location operation. Proceed as follows:

1. Read off the current insulation resistance from the insulation monitoring device. If the value of the insulation resistance is lower than the insulation fault detectable in the EDS system, con-nect two appropriate measuring clamps to the EDS190P, which are identical (e.g 2 x PSA3020 or 2 x PSA3052).



– Select the EDS mode with the function key IΔs

– Set the maximum sensitivity in menu 2.2 (General settings):50 mA for main circuits for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG, EDS3096PG-13 for the measuring clamps PSA3020, PSA3052, PSA3165 and the measuring current trans-formers W/WR…, WS…5 mA for control circuits for EDS3091, EDS3091PG, EDS3091PG-13 for the measuring clamps PSA3320, PSA3352 and the measuring current transformers W…8000, WS…8000

– Select the measuring clamp or measuring current transformer to be used with the button.

4. Set the supply system of the system to be checked in the menu 2.3 (setting IΔs).

5. If frequency converters are connected to the sub-distributions to be tested, the function inverter in the menu 2.3 (setting IΔs) has to be activated

6. Connect the PGH18... according to the wiring diagram on page 45 to the test current supply inputs.

44 TGH1420en/12.2011

Operation

Fig. 6.2: Insulation fault location in a diode-decoupled DC system (wiring diagram)

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45TGH1420en/12.2011

Operation

7. Start of the EDS system:

– Switch the PGH18... on. The "ON" LED lights up and the two LEDs and light up in time with the test cycle and then go out again. If the LEDs fail to show any activity whatso-ever, the supply voltage and the microfuse installed in the PGH18... should be checked.

– Now enclose the L+ and L- conductors with the measuring clamp. Do not enclose the PE conductor.

8. Fault location in the system:

– Enclose the supply conductors connected to the redundant loads with one measuring clamp each. Make sure to enclose the correct corresponding supply conductors to a diode decoupled load.

– Check that the energy flow direction of the two measuring clamps is identical (see wiring diagram). For this purpose, the measuring clamps are marked with an arrow.

– Enclose systematically and one after the other all parallel conductors to the loads with the two measuring clamps. Sections of the loads where insulation faults exist are indicated on the EDS190P display. The alarm messages are output in the same way as they are output when a single measuring clamp is used. Alarm messages, see page 43.

46 TGH1420en/12.2011

Operation

6.16.4 Using the EDS190P as a residual current monitorThe EDS190P can also be used as a residual current monitor in TN and TT systems, and provided that certain conditions are fulfilled, it can also be used in IT systems. Residual current measurement is only possible in energised systems. The PGH18... is not required for this application.

1. Check that the nominal system voltage is within the permissible limits.

2. Connect a suitable measuring clamp to the EDS190P an.



– Select function IΔn (RCM mode) with the button

– Set the response value in menu 2.4 (settings IΔn)

– Select the appropriate measuring clamp or measuring current transformer with the button for the selection of the measuring clamp.

5. When using measuring clamps, please note:


– Enclose all system conductors, but not the PE conductor, with the measuring clamp. Do not enclose shielded cables.



– Do not disconnect the measuring clamp from the EDS190P when live conductors are enclosed by the measuring clamp. Otherwise the measuring clamp may be destroyed!

– Inside the measuring clamp, you should aim for the maximum possible symmetry of the conductors.Due to excessively high load current, the measuring clamp can reach a saturation state that may cause an alarm message IΔn >10A.



6. Start insulation fault location at the main distribution point in the system. Measure along the conductor with the EDS190P until the fault is found. Penetrate radially into the sub-distribu-tions as you do this.

7. EDS190P indicates the residual current at each measuring point. If the residual current is greater than the set response value, the "ALARM" LED lights and the measured value will be indicated. An acoustical signal will also be given provided that the buzzer is activated.

8. For extended period measurements at one point of the system, the fault memory must be acti-vated in menu 2.2 (settings memory). In this way, it is also possible to find intermittent residual currents, provided that they are higher than the set response value. The highest measured residual current is stored.

47TGH1420en/12.2011

Operation

6.16.5 Measuring harmonicsThe harmonics of the basic frequencies of 50 and 60 Hz can also be measured with the EDS190P.



– Select function IΔn (RCM mode) with the button

– Set the response value in menu 2.4 (settings IΔn):


– Select the system frequency in menu 2.4 (settings IΔn)

– Activate the measurement for the harmonics in menu 2.4 (settings IΔn)

– Select the appropriate harmonics in menu 3.

– EDS190P indicates the residual current of the set harmonics at each measuring point. If the residual current is greater than the set response value, the "ALARM" LED lights and the measured value will be indicated. An acoustical signal will also be given provided that the buzzer is activated.

48 TGH1420en/12.2011

Operation

6.17 Coupling device AGE185 for higher voltagesThis is possible for the device versions EDS3090PG, EDS3090PG-13 and EDS3096PG including the in-sulation fault test device PGH185 and PGH186. The coupling device AGE185 extends the nominal voltage range of the insulation fault location system EDS309... . It reduces the power dissipation in the PGH18.... insulation fault test device and allows the connec-tion of the EDS309... to nominal voltages of up to AC 790 V resp. DC 960 V.

Installation, connection and commissioningConnection and commissioning only by skilled persons! The current safety regulations must be con-sidered.

Connect the wires of the AGE185 according to your individual requirements to the terminals PE of the system and to the PE socket of the PGH186; No polarity is to be considered.

Wiring diagram

Fig. 6.3: Wiring diagram EDS309... with AGE185

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49TGH1420en/12.2011

Operation

6.18 Power supply of the EDS190PSupply via 3 NiMH cells, 1.2 V or 3 Mignon cells, type LR6 AA, 1.5 V.Also when the device is supplied by a power supply unit, 3 functional accumulators must be availa-ble in the battery compartment.Do not connect the power supply unit when batteries are inserted.

6.18.1 Displaying the battery statusFour different charge statuses can be indicated on the display: 100 %, 50 %, 25 % and an empty icon to show that the battery is used up.

6.18.2 Replacing batteries or accumulatorsThe battery compartment is located on the rear side of the EDS190P. When the batteries resp. accu-mulators are replaced, the device parameters of the EDS190P that have been set will remain the same.

1. Unscrew the two screws of the cover on the rear side, remove the cover.

2. Remove the used batteries resp. accumulators.

3. Insert the new batteries resp. accumulators into the battery compartment with the correct polarity according to the imprinted positioning diagram.

4. Close the cover.

6.18.3 Power supply unit delivered with the systemThe intended use of the power supply unit delivered with the system is to charge the accumulators inside the EDS190P. The charge status of the accumulators is indicated on the display of the EDS190P.

50 TGH1420en/12.2011

7. Technical data

7.1 Technical data of the EDS309... systemThe technical data indicated in this chapter apply to the components PGH18..., EDS190P, AGE185.

Environment / EMCEMC ....................................................................................................................................................................... IEC 61326Ambient temperature, operation............................................................................................................-10 °C…+ 55 °CClassification of climatic conditions acc. to IEC 60721:Stationary use (IEC 60721-3-3) ............................................................ 3K5 (except condensation and formation of ice)Transport (IEC 60721-3-2) .................................................................... 2K3 (except condensation and formation of ice)Storage (IEC 60721-3-1) ....................................................................... 1K4 (except condensation and formation of ice)Classification of mechanical conditions acc. to IEC 60721:Stationary use (IEC 60721-3-3) ....................................................................................................................................3M4Transport (IEC 60721-3-2) .......................................................................................................................................... 2M2Long-time storage (IEC 60721-3-1) ........................................................................................................................... 1M3

General dataOperating mode ............................................................................................................................... continuous operationPosition of normal use.................................................................................................................................................... anyWeight approx. ........................................................................................................ 7000 g (8500 g including PSA3165)

7.2 Technical data PGH18...Insulation coordination acc. to IEC 60664-1 / IEC 60664-3Rated insulation voltage........................................................................................................................................ AC 500 V Rated impulse voltage/pollution degree................................................................................................................. 4 kV/3

Nominal system voltage UnPGH185 .......................................................................................................3AC/AC 42...460 Hz 20...575 V, DC 20...504 VPGH183 ............................................................................................................... AC 42...460 Hz 20...265 V, DC 20...308 V PGH186 ........................................................................................................... 3AC/AC 42...460 Hz 0...575 V, DC 0...504 V

Supply voltageSupply voltage US.................................................................................................................................AC 50...60 Hz 230 VOperating range of Us............................................................................................................................... 0.85…1.15 x UsSupply voltage US version -13 ...................................................................................................AC 50...60 Hz 90…132 VPGH 183, PGH 185:Power consumption ............................................................................................................................................... ≤ 3 VAPGH 186:Power consumption ............................................................................................................................................... ≤ 6 VA

Test currentPGH185/186Max. test current, selectable ..............................................................................................................................10 / 25 mAPGH183Max. test current, selectable ...............................................................................................................................1 / 2.5 mAPGH183/185/186Test cycle...........................................................................................................................................................................2 sIdle time ...........................................................................................................................................................................4 s

51TGH1420en/12.2011

Technical data

Test voltagePGH186.....................................................................................................................................................................DC 50 V

General dataDegree of protection DIN EN 60529 (VDE 0470-1) ..................................................................................................... IP40Enclosure material...............................................................................................................................................ABS plasticFlammability class..................................................................................................................................................UL94V-0Weight.....................................................................................................................................................................< 700 g

7.3 Technical data EDS190P( )* = Factory settings

Insulation coordination acc. to IEC 60664-1 / IEC 60664-3Rated insulation voltage ............................................................................................................................................... 50 VRated impulse voltage/pollution degree ............................................................................................................0.8 kV / III

Supply voltageSupply voltage US....................................................................................... DC 6 V +/- 10 %, external power supply unitBatteries..................................................................................................................................................3 x LR6 AA – 1.5 VAccumulators .................................................................................................................................. 3 x NiMh ≥ 2000 mAhSize.............................................................................................................................................................................. AA R6Power consumption............................................................................................................................................... ≤ 0.5 WHours of operation (without display illumination) ................................................................................................. ≥ 60 h

Measuring circuit insulation fault locationNominal system voltage ..................... when the conductors are uninsulated, including measuring clamp up to 600 VRated frequency ..................................................................................................................................... DC, 42…2000 HzMain circuit (ITmax = 50 mA):Measuring clamps................................................................................................................PSA3020, PSA3052, PSA3165Response sensitivity IΔs adjustable ...................................................................................................2… 10 mA (5 mA)*Operating uncertainty ......................................................................................... ±30 % / ±2 mA of the reference value Control circuit: (ITmax = 5 mA)Measuring clamps.................................................................................................................................PSA3320, PSA3352Response sensitivity IΔs adjustable ...................................................................................... 200… 1 000 μA (500 μA)*Operating uncertainty ..................................................................................... ±30 % / ± 0.1 mA of the reference value

Measuring circuit residual currentwith measuring clamps .......................................................................................................PSA3020, PSA3052, PSA3165Measuring range ........................................................................................................ 5 mA … 10 A (crest factor up to 3)Response sensitivity IΔn adjustable.......................................................................................... 10 mA…10 A (100 mA)*Measuring clamps.................................................................................................................................PSA3320, PSA3352Measuring range .......................................................................................................... 2 mA … 2 A (crest factor up to 3)Response sensitivity IΔn adjustable............................................................................................ 5 mA … 1 A (100 mA)*Frequency range ...........................................................................................................................................42…2000 HzOperating uncertainty ......................................................................................................................................... 0…-35%Hysteresis......................................................................................................................................................................20 %Harmonics, adjustable ............................................................................................................. 2.-9. harmonic component

InputsType of connection measuring clamp .................................................................................................................. BNC plugPower supply unit ......................................................................................................................................................DC 6 V

DisplayLCD......................................................................................................................3 x 16 characters, selectable illumination LED...............................................................................................................................................................................AlarmOperating uncertainty .......................................................................................................................................... ±17,5%

52 TGH1420en/12.2011

Technical data

General dataDegree of protection, internal components DIN EN 60529 (VDE 0470-1).................................................................. IP40Protection class acc. to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100) ............................................................... Class IIIEnclosure material .............................................................................................................................................. ABS plasticFlammability class ..................................................................................................................................................UL94V-0Operating manual ................................................................................................................................................. TGH1420Weight .....................................................................................................................................................................< 400 gSoftware version ................................................................................................................................................ D316 V1.0Dimensions WxHxD:................................................................................................................................... 84x197x30 mm

7.4 Technical data measuring clamps Electrical safetyStandard ............................................................................................................................. IEC 61010-2-030:2004-05-01 Pollution degree ................................................................................................................................................................. 2Category............................................................................................................................................................................. IIIOperating voltage........................................................................................................................................................600 VNominal insulation voltage................................................................................... AC 600 V CAT III resp. AC 300 V CAT IV

General dataDegree of protection, internal components DIN EN 60529 (VDE 0470-1).................................................................. IP40Protection class acc. to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100) ............................................................... Class IIITest port ................................................................................................................................................................ BNC plugDimensions PSA3052/3352 ................................................................................................................ 216 x 111 x 45 mmDimensions PSA3020/3320 ...................................................................................................................135 x 65 x 30 mmDimensions PSA3165 .......................................................................................................................... 285 x 179 x 45 mmpermissible cable diameter PSA3052/3352............................................................................................................ 52 mmpermissible cable diameter PSA3020 /3320 ........................................................................................................... 20 mmpermissible cable diameter PSA3165 ................................................................................................................... 115 mmWeight PSA3052/3352 .................................................................................................................................approx. 700 gWeight PSA3020/3320 .................................................................................................................................approx. 300 gWeight PSA3165 .........................................................................................................................................approx. 1300 g

7.5 Technical data AGE185Insulation coordination acc. to IEC 60664-1Rated insulation voltage...................................................................................................................................... AC 1000 V Rated impulse voltage/pollution degree................................................................................................................4 kV / IIINominal system voltage Un ..................................................................3AC/AC 42...460 Hz, 500...790 V, DC 400...960 V

General dataDegree of protection, internal components DIN EN 60529 (VDE 0470-1).................................................................. IP30Type of connection/cable:.......................................................... Safety plug with green-yellow connecting wire 1 mm2

Weight .....................................................................................................................................................................< 200 gDimensions WxHxD:.................................................................................................................................. 88.5x42x21 mm

53TGH1420en/12.2011

Technical data

7.6 Dimension diagramsAll dimensions are given in mm

Aluminium case

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54 TGH1420en/12.2011

Technical data

7.7 StandardsObserve the applicable national and international standards. The EDS309... series meets the require-ments of the following equipment standards:

IEC 60364-4-41, modifiedLow-voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock

IEC 61557-9Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equip-ment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insu-lation fault location in IT systems

IEC 61010-1Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements.

55TGH1420en/12.2011

Technical data

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56 TGH1420en/12.2011

Technical data

7.9 List of components

Device type

Aluminium case with carrying strap

Operating manual TGH1420

Insulation fault evaluator

Clamping plug for 4 mm

Adapter BNC/4mm plug -> Measuring CT

Power supply unit for EDS190P

Insulation fault test device

Supply cable for PGH18...

Safety measuring cable, black

Safety measuring cable, green/yellow

Safety claw grip, black

Safety claw grip, green/yellow

Coupling device, optional

Measuring clamp 20 mm

Measuring clamp 52 mm

Measuring clamp 115 mm, optional

EDS190P-Set, optional

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GH

183-

131

31

31

PS

A33

20P

SA

3352

1

ED

S30

96P

G1

1E

DS

190P

11

1P

GH

186

13

13

1A

GE

185

PS

A30

20P

SA

3052

PS

A31

651

ED

S30

96P

G-1

31

1E

DS

190P

11

1P

GH

186-

131

31

31

AG

E18

5P

SA

3020

PS

A30

52P

SA

3165

1

2P

SA

3320

PS

A30

20P

SA

3352

PS

A30

521

1P

GH

183

PG

H18

52

62

6

Co

mp

on

en

ts E

DS

309...

ED

S190P

wit

h

Accesso

ries

PG

H18... w

ith

Accesso

ries f

or

Measu

rin

g c

lam

ps

ED

S30

92P

G1

1E

DS

190P

11

57TGH1420en/12.2011

Technical data

58 TGH1420en/12.2011

8. Frequently asked questions

The Isometer indicates an insulation fault that cannot be localised with the EDS 309.... What could be the cause?

– Check whether there are sub-distributions in the IT system being checked which are earthed. All outgoing distributions are to be checked for unwanted connection to earth. Also the N conductor of the transformer supplying the IT system must not be connected to earth.

– There is possibly no test current available. Check the earth connection of the test current generator PGH18..., IRDH575 for correct connection.

– The PE conductor has unintentionally been routed through the measuring clamp or the measuring current transformer.

EDS190P outputs the message "Fault“. What is the reason for this fault?

– Frequency converters or other disturbing loads may exist in the system being checked. The menu item settings /IΔs/U/converters in the menu of the EDS190P has to be activated with yes.

– Galvanic connections exist between different sub-distributions downstream of the measur-ing clamps in the direction to the loads.

– The location of the insulation fault may be upstream the measuring point of the measuring clamp or the measuring current transformer.

EDS190P displays the fault message "No CT connected“. What could be the cause?

– There is no measuring clamp connected or the measuring clamp is defective.

– A measuring clamp or a measuring current transformer of the wrong type has been con-nected to the EDS190P, see table on page 31.

EDS190P displays the fault message "Short circuit CT“. What could be the cause?

– The measuring clamp is defective.

– A measuring clamp or a measuring current transformer of the wrong type has been con-nected to the EDS190P, see table on page 31.

In the EDS mode (IΔs), the EDS190P displays the fault message "IΔn > 1 A“ resp. "IΔn > 10 A“. What could be the cause for these high currents?

– Due to a low-resistance insulation fault, an excessively high residual current flows through the measuring clamp or the measuring current transformer.

– Due to the parallel connection of several insulation faults an excessively high residual cur-rent flows through the measuring clamp or the measuring current transformer.

– Strong magnetic fields in the vicinity of the measuring clamp generate a measuring signal in the measuring clamp or in the measuring current transformer.

– A measuring error will occur unless all active conductors are enclosed with the measuring clamp.

The LC display shows undefined indications. What could be the cause?

– The installed batteries or accumulators are almost used up.

59TGH1420en/12.2011

Frequently asked questions

60 TGH1420en/12.2011

INDEX

AAccessories

- optional 13Accumulator

- replace 50Alarm is output acoustically 34Alarm LED 31Alarm output activated via LED 34Alarms in the EDS or RCM mode 35Application

- primary 40

BButton to select the measuring clamp 31

CCharacteristic curves 23Charge status of the accumulators 34Clear fault memory 32Commissioning 27conductors

- shielded 15Connection 28Connection for external power supply unit

31Converters in the system 36, 37Coupling 40Coupling device AGE185 49

DDecoupling the insulation monitoring de-

vice 27Device resp.measuring errors 36Device-specific safety information 9Dimension diagrams 54Diode decoupled IT system 44Display elements and their meaning 34Display illumination 32Down key 32

EEDS mode 14EDS190P

- Operating elements 31

FFactory settings 36Fault 36Fault current circuit 15Fault memory M is activated 34Frequently asked questions

- 59

HHold function activated 34HOLD key 32

IIndication of the test current pulse 34Insulation fault evaluator 14Intended use 9

LLeakage currents 17List of components 57

Mmeasuring clamps

- using 40Measuring current transformer

- commercially available 13Menu structure 37

NNavigation in the EDS190P menu 37

OOn/Off switching 32Operating mode button 31Operating principle 15Ordering information including accesso-

ries 56

PPermanently installed EDS system 42persons 10PGH18...

- Operating elements 30

Power supply of the EDS190P 50Practical use 40Progress bar showing the measurement

progress in the EDS mode 34

QQuerying the current response values 31Querying the device type 31Querying the software version 31

RRCM mode

- Function 18Reset button 32Residual current evaluator 14Residual currents

- Path 17Response characteristic curves for control

circuits 25Response characteristic curves for main

circuits 23

SSaving the measured value with HOLD 32Selected measuring current transformer

34Selection of the measuring current trans-

former 31Selection of the measuring sensitivity 34Selection of the operating mode 31SPC 22Standard display in the EDS mode 35Standard display of the EDS190P 35Standards 55Starting the menu mode 32symmetrical

- insulation fault 21System components 7, 11Systems

- deenergised 27

TTechnical data 51Test current 15Test current limit 22Test cycle 16

61TGH1420en/12.2011

INDEX

UUp key 32

VView harmonics 35, 39

62 TGH1420en/12.2011

Dipl.-Ing. W. Bender GmbH & Co. KGLondorfer Str. 65 • 35305 Grünberg • GermanyPostfach 1161 • 35301 Grünberg • Germany

Tel.: +49 6401 807-0Fax: +49 6401 807-259

E-Mail: [email protected]: http://www.bender-de.com

http://www.bender-de.com

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