Kocos Br Eppe Sherlog 201105 Eng

KO C O S - T H E T E C H N O L O G Y G R O U P W H E R E P R E C I S I O N M E E T S Q UA L I T Y

KoCoS Messtechnik AGSuedring 42D-34497 Korbach, GermanyTel. +49 5631 9596-0Fax +49 5631 [email protected] Su

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Power Quality Measurement& Digital Fault Recording

EPPE. SHERLOG.

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n Field of application ....................................................................................................................................... S. 3

n Product overview .............................................................................................................................................. S. 4

n Recording functions of EPPE and SHERLOG systems ........................................................................... S. 5

n EPPE power quality analysers....................................................................................................................... S. 7

n EPPE C8 ............................................................................................................................................................... S. 8

n EPPE W8 .............................................................................................................................................................. S. 17

n EPPE R8 ............................................................................................................................................................... S. 20

n SHERLOG fault recorder systems for professional event analysis .................................................... S. 22

n SHERLOG CRT .................................................................................................................................................. S. 26

n SHERLOG CX ..................................................................................................................................................... S. 28

n SHERLOG C8 / P8 .......................................................................................................................................... S. 30

n EPPE basic software ......................................................................................................................................... S. 32

n NRGCenter professional software ............................................................................................................... S. 33

Field of applicationIn view of the growing number of factors with a disturb-ing influence on power systems and the ever increasing sensitivity of devices and installations on the consumer side, simple monitoring criteria such as undervoltage or overcurrent are no longer adequate. Reliable registration of all the relevant processes within the electrical power system calls for constant observation of a wide variety of derived parameters, such as individual harmonic content, system unbalance and interharmonics, and the swift iden-tification of even slight deviations from the norm.

Modern power system monitoring equipment should be capable of comprehensively logging the mode of opera-tion and the interaction of all the component parts of a power supply system.

Only comprehensive and continuous monitoring of the en-tire power system enables all resources to be used purpo-sively and effectively for the restoration of system opera-tion should a disturbance occur.

The recorded data can also be used as the basis for extending power networks and optimising primary and second-ary technology. Not only the security of supply, but also the quality of electrical power is important for the smooth operation of electrical equipment in industrial, medical and electronic data processing environments.

Because of this, power quality is increasingly being brought into play as a price criterion. So it is imperative for energy providers and customers alike to monitor and log power quality constantly.

The need to record a very large number of electrical pa-rameters simultaneously and continuously over some-times very long periods of time places extreme demands on measuring equipment.

Power Quality Measurement & Digital Fault Recording

Innovation, growth and dependability are the principles which drive the day-to-day activities of the KoCoS team and govern the development, manufacture and marketing of KoCoS products. Not without reason have KoCoS technologies won a number of prestigious awards.

What began as a small business developing load optimisation software solutions for municipal utilities is now a medium-sized group of companies providing highly innovative, quality products for electrical power companies and industrial concerns across the world. We are proud of what we have achieved and look forward to consoli-dating and building on that success in the future. Our thanks go to our customers, employees and partners for their continued confidence in us.

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Recording functions of EPPE and SHERLOG systems

Fast fault recordingWhen a limit value violation occurs, all analog and bi-nary signals are recorded with a configurable resolution of 100 Hz to 30 kHz. The recording includes separately configurable time windows for pre-fault, fault and post-fault periods. A special mode can be used to control the length of the fault recording period in accordance with the actual duration of the limit value violation. This method provides maximum information with minimum data volume.

Slow fault recordingIn addition to the analog and digital signals which are measured directly, the RMS recorder function also records all the quantities calculated on the basis of these signals, such as frequency, unbalance, positive sequence system, negative sequence system and zero sequence system, active power, reactive power and ap-parent power, harmonics etc. The sample rate can be set between 1 Hz and double the system frequency (100 Hz/120 Hz). Each recording can include up to 30 seconds pre-fault time and 15 seconds post-fault time. This method is ideal for detecting and assessing slow processes such as power swings.

Continuous data recordingThe data logger function records measurement data con-tinuously. The recorded data can be downloaded to a central computer without interrupting the measurement. As a result, data can be recorded continuously for a num-ber of years. The averaging intervals can be set between one second and 24 hours. For each averaging interval, the mean RMS value and the largest and smallest single RMS values are recorded with an exact time stamp.Up to 8 different averaging intervals, each with up to 500 selectable measurement quantities, can be record-ed simultaneously. Long-term recordings provide com-prehensive information on the entire power system, ex-pose slow changes, as can result from a changing load or generator structure, and reveal potential for energy savings.

Event recordingEvent recording provides in-formation on the time, level and duration of limit value violations and a classifica-tion of events to EN 50160, for example. If required, the event signatures can also be recorded with a time resolution of half a period. To keep memory requirements to a minimum, the sam-ple rate can also be controlled dynamically. Fast signal changes are recorded with a higher resolution than slow signal changes.

Power quality recordingThe continuous recording of all power system parameters allows comprehensive power quality analysis to DIN EN 50160 or quality criteria defined by the individual user. Characteristic values are captured and calculated to IEC 61000-4-30 class A, IEC 61000-4-7 and IEC 61000-4-15. Because quality reports can be created automatically as PDF files, it is easy to provide proof of quality whenever required, even without specialist knowledge.

Recording digital events and statesBinary inputs are primarily used to read in signals from protection relays and circuit breaker positions which are of decisive importance for the analysis of fault records.Event classes with and without an acknowledgement obligation and message texts which can be listed or printed out chronologically can be assigned to the bina-ry inputs for the continuous recording of binary signals (SER function).

Portablemeasuring systems

Product overview

EPPE C8

SHERLOG CRT / CX

EPPE R8

SHERLOG C8

EPPE W8 SHERLOG P8

Stationarymeasuring systems

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EPPE power quality analysersTime synchronisationPower quality analysis and fault analysis with full area coverage call for precise time synchronisation. Only when measured values are recorded by a number of devices ab-solutely simultaneously, is it possible to compare them with one another and evaluate them correctly.This makes it possible to identify weak points in the sup-ply system and remedy them efficiently.EPPE and SHERLOG systems can be synchronised with GPS, DCF 77 and NTP and for seconds or minutes pulses, so all common time synchronisation methods are avail-able.Using the KoCoS synchronisation bus, any number of devices can be synchronised using a simple 2-wire con-nection. This leads to significant cost savings as only one measuring device per location needs to be synchronised against a precise time basis. This „master system“ then synchronises all the other KoCoS measuring systems.

Inputs and outputs

All analog and binary outputs and all interfaces are gal-vanically isolated and meet stringent occupational health and safety requirements. They also feature excellent im-munity from electro-magnetic disturbances. Because of the absolutely linear frequency response, all the analog inputs are suitable for ac or dc quantities however they are configured and provide high accuracy across the en-tire measuring range.The special input circuitry of the binary inputs is de-signed for operation with voltages between 24 V and 300 V and effectively suppresses the detection of tran-sients which can be caused by switching operations, for example. Freely configurable relay outputs can be used to indicate status signals, alarm signals or limit value viola-tions to control systems, for example.

Whatever processes are currently underway in your pow-er system, the power quality analysers of the EPPE series will register even minor disturbances or alterations. All the parameters of an electrical supply system are recorded continuously and precisely. Detailed quality evaluations reveal even the slightest of deviations and help identify the cause of disturbances. Precise time synchronization of the measuring systems via GPS allows the measured data from a number of different devices to be consolidated in order to comprehensively monitor an entire supply system.

EPPE systems continuously capture all power system pa-rameters for the analysis and documentation of power quality to standards defined by the individual user or international standards such as EN 50160 or IEC 61000. High storage capacities and effective data compression methods enable long-term recordings to be made which can last for up to several years. As well as continuous-ly recording all the quantities relevant to power quality, the integrated fault recorder module allows the event- triggered capture of transient processes with sample rates of up to 30 kHz.

EPPE measuring systems are available as table-top de-vices, for cabinet installation or in a portable housing for harsh environmental conditions.

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EPPE C8EPPE C8

Device descriptionEPPE C8 is a powerful, multifunctional measuring in- strument for panel mounting which can meet the require-ments of electricity generators and consumers alike. This high-accuracy power quality analyser can be installed at key points in all voltage levels. Used singly or in networked groups for area coverage, it delivers comprehensive, con-tinuous and fully automatic power monitoring. Developed with the needs and requirements of the user in mind, EPPE C8 is easy to operate and provides all the functions which may be required - ranging from power quality anal-ysis and fault recording through to consumption measurements for load optimisation etc.

Touch screen operationThe device can be operated easily using the ergonomic 5“ touch screen. All functions and measured value displays are accessed from the main menu. The measured value displays allow users to see all important measured val-ues and status information at a glance. Alternatively, the device can also be operated with the aid of the func-tion keys.

The list below includes just a few examples of the many possible applications:

n Power quality analysisn Power quality monitoringn Harmonics measurementn Network optimisationn Load managementn Fault locationn Fault analysisn Trend recordingn Critical load monitoring

Transfer of parameters by USB flash drive

One of the highlights of this power quality analyser is that parameters can be transferred directly to the device using a USB flash drive. Saved measure-ment data can also be transferred quickly and easily to a USB flash drive without a direct communi-cation connection.

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Communication interfacesn Electric Ethernetn Optical Ethernet (optical fibre)n Active/passive USBn RS485n RS232n Internal modemn Integrated web server

Dual-processor systemThanks to an additional interface processor, EPPE C8 pro-vides a wide range of communication options. This inno-vative technology makes long data transmission times a thing of the past and enables EPPE C8 to be easily inte-grated in any network.

IEC 61850 II ModbusEPPE C8 can use a range of data protocols, including Modbus and IEC 61850.These communications services run in parallel, enabling data to be exchanged quickly between different systems.

Integrated web serverEPPE C8 has an integrated web server which allows users to access relevant measurement data from any PC with any Internet browser. There is no need to install special software.

Remote Desktop Connection

Remote Connections

Network Capability(Remote Display / Configuration)

Direct Connections

DSP

SD-RAM Flash-RAM

GPS/DCFReceiver

Interlinkto other devices

CommunicationProcessor

2 GB Flash Data Memory

TFT DisplayTouch Screen

Keyboard

Com

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USB Slave

USB Master

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RS 232

Modem

RS 485

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EPPE C8

User InterfaceReal-Time Processing

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Energy meter

EPPE C8 features an integrated energy meter with an accuracy class of <0.2 which can be used to further op-timise energy consumption. The energy consumption of installations can be monitored online and trend analysis can be carried out over long periods. Active, reactive and apparent energy can be recorded and analysed extremely precisely.

Data memory

With 2 GB of flash memory, the EPPE C8 power quality analyser stands out from the crowd. This large memory capacity allows measurement quantities to be recorded at very high resolutions for long periods of time, even when there is no permanent data connection to a mass data storage medium (server).Another advantage of the flash data memory is that mea-surement data is not lost during interruptions to the pow-er supply or when the device is switched off - the data is completely safe, even without additional battery support.

Inputs and outputs

Analog inputs

EPPE C8 features 4 current and 4 voltage inputs which can measure up to 40 A (max. 100 A for 3 seconds) and 600 V.

Binary inputs and outputs

The device has 12 binary inputs and 8 relay outputs. The binary inputs are divided into 3 groups, each of which has a common reference point.

Time synchronisation

n NTP (Network Time Protocol)n GPSn DCF77n KoCoS synchronisation bus

The KoCoS synchronisation bus is used for synchronising the time of a number of EPPE C8 devices and for passing on trigger information. The cross-triggering function can also be used to start fault recordings absolutely simulta-neously on a number of EPPE systems at once.

Gateway

Database

ModemRouter

Network (e.g. TCP/ IP)

Sync. Bus

GPS Synchronisation

Telephone or GSM - VPN

User Interface

SAT

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Installation

Overview

Connections

EPPE C8 is designed for panel mounting. A bracket system for DIN-rail mounting is available as an optional extra if required.The standard delivery package includes a wide-range power supply unit for flexible powering. The devices can also be equipped with a variety of DC power supply units for other applications.

Power supply unitsn Wide-range power supply unit (85 to 265 VAC / 90 to 350 VDC)n Optional power supply units · 9 to 18 VDC · 18 to 36 VDC · 36 to 72 VDC

NTP

DCF

GPS

Sync. bus / PPS

External PC

5“ TFT touch screen

Membrane keypad

6 el. relay outputs

2 mech. relay outputs

Activation range: 24 ... 300 VDC

Number: 12

3 groupsNumber: 4

Measuring range: 600 VAC

Accuracy 0.1% of range


Operation

Data memory

Binary inputs

Interface

Currentmeasurement

Voltage measurementBinary signals

Binary outputs

Technical DataEPPE C8

Internal modem

Ethernet (el./opt.)

USB (active; passive)

RS485

RS232

Number: 4

Measuring ranges:1A/ 5A / 10A

Accuracy 0.1% of range2 GB flash

data memory

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Scope of delivery

Standard scope of delivery:

n 1 x EPPE software

n 1 x EPPE C8: • 12 x binary inputs • 8 x relay outputs • Wide-range power supply unit (85 to 265 VAC, 90 to 350 VDC) • Communication interfaces: RS232, RS485, USB, Ethernet • Time synchronisation: NTP (Ethernet), PC time

Voltage and current measuring ranges:

n Voltage ranges • 150 V (L-N), 260 V (L-L) • 600 V (L-N), 1039 V (L-L)

n Current ranges • 1 A nominal, 10 A maximum • 5 A nominal, 20 A maximum • 10 A nominal, 40 A maximum

Options:

n Power supply • DC power supply unit (9 to 18 VDC, 18 to 36 VDC, 36 to 72 VDC) • External UPS

n Communication interfaces: • Optical Ethernet (optical fibre) • Internal modem

n Time synchronisation: • GPS • DCF77 • Synchronisation interface

n Bracket for DIN-rail mounting

EPPE W8EPPE W8

Device descriptionEPPE W8 is a compact power quality analyser of robust de-sign which has been specially developed for use in harsh environmental conditions. The shock-resistant housing complies with IP65 and is therefore fully protected against dust and water jets. Comprehensive recording and moni-toring functions enable power system parameters to be recorded, transferred to a PC and evaluated with the very highest precision. The device is able to work to various standards, including EN 61000-4-30, class A. EPPE W8 is delivered in a rugged carrying case which contains all the components needed to carry out measurements in compliance with valid standards. In addition to high-quality measuring leads and connectors, the equipment also includes the easy-to-operate soft-ware.

OperationThe measurement configuration is prepared in full on a PC before being transferred to the de-vice via one of the communications interfaces.EPPE W8 can also be operated directly using 4 function keys. A clear LCD keeps users up to date with the most important measured values and the status of the device. This information can be used to check the correct connection of all sig-nals before the start of a measurement.

CommunicationEPPE W8 has the following communication interfacesn USBn RS232

All interfaces are fully sealed in compliance with IP65 and are therefore protected against dirt and water.

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Inputs and outputs

Analog inputs:

n 4 current und 4 voltage inputsn Voltage measurement up to 500 Vn Current measurement with current probes

Binary inputs and outputs:

n 2 binary inputsn 2 relay outputs

Time synchronisationEPPE W8 supports the following synchronisation methods:n PC timen GPS

InstallationThe device complies with IP65 and is therefore fully protected against dust and water. The shock-resistant housing allows unre-stricted operation even in harsh environmental conditions.Because of its compact size, EPPE W8 can easily be accommodat-ed in a cabinet, for example, to secure it against unauthorized access.

EvaluationRecorded measurement data can be transferred to a PC at any time without interrupting the measurement in progress. The de-tailed analysis of the measured data is carried out with powerful software. A wide range of graphs and tables give a quick over-view of the supply situation.

Standard scope of delivery:

n EPPE W8 measuring device with a shoulder strap and rugged carrying casen Voltage measuring leads complete with connection clampsn USB and RS232 cablesn Software for operation and evaluation

Options:

n Internal GPS receiver for time synchronisationn Flexible current probes / passive current clampsn Connection cable for binary inputs and outputsn Professional software with extended functionality

Scope of delivery

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Device descriptionEPPE R8 is a compact power quality analyser with a housing designed for panel surface mounting which can be installed either directly or on DIN rails.Comprehensive recording and monitoring functions enable power system parameters to be recorded, transferred to a PC and evaluated with the very highest precision. The device is able to work to various standards, including EN 61000-4-30, class A.

OperationThe device is operated from a PC connected to the communica-tion interface. The software offers a wide range of options for configuration and analysis. 8 LEDs located on the device itself indicate the status of the device and the measurement to on-site personnel.

CommunicationEPPE R8 has the following communication interfaces fordata transfer:n RS232n USBn Ethernetn Modem

Inputs and outputsAnalog inputs:n 4 current und 4 voltage inputsn Voltage measurement up to 400 Vn Current measurement via current transducers and current probes

Binary inputs and outputs:n 8 binary inputsn 2 relay outputs

Time synchronisationEPPE R8 supports the following synchronisation methods:n PC timen GPSn DCF77

InstallationThe device is very compact and can be mounted on a DIN-rail ordirectly in a panel, for example. The device is configured using the NRGCenter software. It also has an internal UPS which can provide up to 20 minutes of back-up during interruptions to the power supply.

EvaluationMeasured data can be transferred to a PC at any time, without interrupting the measurement in progress. The measured data is evaluated using the powerful software for operation and evalua-tion which is provided with the device.

Scope of deliveryStandard scope of delivery:n EPPE R8 measuring devicen USB cablen Software for operation and evaluation

Optional accessories:n Ethernet interfacen Internal analog modemn GPS receiver for time synchronisationn DCF receiver for time synchronisationn Flexible current probes / passive current clampsn Current transducer box

EPPE R8EPPE R8

Optional accessories for all EPPE devicesn GPSantennaforinstallationonabuildingn Surgeprotectorn Analogmodemn GSMmodemn RS232/Ethernetinterfaceconvertern Adapterfor4mmsafetyconnectorsand rail-mountedterminals

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SHERLOG fault recorder systems for professional event analysisThe measuring devices of the SHERLOG range combine the monitoring functions of a high-class digital fault re-corder with the features of a power quality analyser in a single system. They can be used to comprehensively monitor power engineering equipment such as lines and busbars and associated protection devices and switchgear equipment.

As well as detecting faults and making high-resolution recordings of the signal characteristics in fault records, SHERLOG systems can also make long-term recordings of RMS value characteristics and calculate all the relevant power system parameters needed in order to determine and monitor power quality.Because SHERLOG devices can be easily networked, it is possible to create highly complex measuring systems which are capable of monitoring any number of bus bars and lines.

SHERLOG can be used to monitor power systems precise-ly and reliably. As SHERLOG systems are entirely digital, their functioning is fully software-controlled. All processes and functions are freely programmable. New function modules or algorithms which meet new standards can easily be added during manual or automatic software maintenance. The NRGCenter software package is used to configure and control SHERLOG measuring instruments and to read out, archive and evaluate the recorded data.

Fields of applicationSHERLOG systems are used in all the parts of an electricity supply net-work, from power generation and transmission right on through to the end user. They are suitable for all voltage levels.

Examples of applications: n Fault recorders for power stations, transformer substations and transmission networks at low, medium, high and extra-high voltage levels. Two simultaneous sampling frequencies of between 100 Hz and 30 kHz can record even extremely short events with precision and allow comprehensive analysis as well as fault location

n Capture of slow events such as power swings and transient phenomena.

n Continuous recording of all power system parameters with up to 8 simultaneous density levels for applications such as:

• Power quality recording to EN50160, for example• Load and frequency recording• Analysis of power consumption• Assessment of the capacity utilisation and stability of supply systems• Capture of influences resulting from a constantly fluctuating generator and load structure• Monitoring of general or individually agreed connection conditions for compliance with limit values

n Documentation system for commissioning and service tests

n Chronological event recording and logging of binary status signals. Individually definable event classes, message texts and acknowledgement requirements make SHERLOG a fully fledged sequence-of-event recorder.

Safe and efficientn Because SHERLOG fault recorders contain no parts which are subject to wear and tear, such as hard disk memory or fans, they are 100% maintenance-free.

n Galvanic separation of all measurement inputs and communication interfaces for maximum flexibility and safe operation.

n Measurement data is saved reliably in the internal data memory and is not lost in the event of a power failure or when the device is switched off.

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Advantages of SHERLOG fault recorders over digital protection relaysn Trigger criteria can be set independently of protection relays and are much more comprehensive, so that even very slight anomalies in the supply system can be recorded

n High sample rate for detecting transient faults, malfunctioning transducers, defective switching contacts or resonance phenomena

n Recordings include information on all the component parts of an installation and their impact chain

n By recording data continuously in order to monitor power system operation comprehensively, proof of how a power system is operating can be provided at any time, even if no disturbances are detected during the period in question.

Measurement quantities and trigger criteria for analog signals

• Voltage

• Current

• Frequency

• Line angle

• Form and peak factor

• THD, PWHD, THDG, TDD

• Harmonics to the 50th order

• Interharmonics

• Subharmonics (1 Hz to 60 Hz)

• Active power, apparent power and reactive power

• Active energy, apparent energy and reactive energy

• Power factor

• K-factor

• Positive sequence system, negative sequence system and zero sequence

system for voltage, current and impedance

• Positive sequence system, negative sequence system and zero sequence

system for all subharmonic frequencies from 1 Hz to 60 Hz on

all current channels

• Unbalance for voltage, current and impedance

• Impedance

• Flicker (Pst, Plt) to IEC 61000-4-15


• GPS synchronisation with internal receiver

• GPS synchronisation with an external central clock

• DCF77

• Synchronisation to PC time

• Seconds and minutes pulse

• KoCoS synchronisation bus

Communication interfaces• Electric Ethernet• Ethernet over optical fibre• USB• RS485• Electric RS232• RS232 over optical fibre• Internal modem

Power supplyThe standard SHERLOG delivery package includes a wide-range power supply unit for flexible powering. Alternatively, SHERLOG can also be equipped with DC power supply units.

• Wide-range power supply unit (85 to 265 VAC / 90 to 350 VDC)• Optional power supply units (9 to 18 VDC, 18 to 36 VDC, 36 to 72 VDC)

SHERLOG can optionally be equipped with two independent power supply units for redundant mains operation. Because each power supply unit uses its own voltage input, two different power supply units can be chosen (e.g. a wide-range power supply unit and a 24 VDC power supply unit).

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SHERLOG CRT

SHERLOG CRT has been specially designed as a decentra-lized monitoring system and is primarily used when the measurement points to be monitored are physically remote from one another, as is the case in switching stations or transformer substations.

Installation requires no external components, such as vol-tage or current sensors, which would need extra mount-ing. The connection technology used is also geared to-wards simple, space-saving, low-cost installation, making the system ideal for use in protection cabinets, to mention just one example.

Equipment:n 8 or 16 analog inputs with the following options:

8 channel device• 4 x voltage, 4 x current• 8 x voltage

16 channel device• 4 x voltage, 12 x current• 8 x voltage, 8 x current• 12 x voltage, 4 x current• 16 x voltage n Voltage measuring ranges: 0 - 150 V or 0 - 300 V n Nominal current measuring range for 1 A or 5 A protection or measurement transformersn Maximum measurable current: 5, 20 or 40 times the rated currentn Maximum overcurrent: 100 times the rated current for 3 secondsn Measuring ranges for auxiliary signals: +/- 10 V or +/- 20 mAn Sample rate of the analog inputs 37.5 kHzn 16 or 32 separate binary inputs (no common reference point)n 4 relay outputsn Full galvanic separation of all inputs up to 2,500 Vn Robust screw-type terminals for direct connection to protection transformersn Connection of measurement signals via Combicon screw-type terminalsn Housing: 19“, 3 U

n Data communication& time synchronisation interfaces

n Voltage inputs n Binary inputs n Current inputs

SHERLOG CRT

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SHERLOG CXSHERLOG CX

SHERLOG CX has been specially designed as a centralized monitoring system and is primarily used when a large num-ber of process signals have to be monitored in one place or when a high degree of flexibility is required. The fully mod-ular design makes the system extremely economic to use. There is no need to install anything more than is needed at the time. Changes in the configuration or extensions are easy to implement whenever necessary.

Equipment:n 8, 16, 24 or 32 analog inputs

Each analog module has 8 measurement inputs and is avail-able in three different configurations:• 4 x voltage, 4 x current• 8 x voltage• 8 x current

External current sensors:

SHERLOG CX uses external sensors for current measurement, significantly increasing flexibility and extending the range of possible applications. Adaptations to special requirements are even easier to achieve. Even changes to the current measuring ranges can be implemented quickly and easily on site. Current sensors with a range of different configurations are available to meet the requirements of all the various ap-plications.

Typical sensors include:n High-precision 4-wire measurement shunts from 1 mOhm to 50 mOhmn High-precision toroidal-core transformers

The housings of the sensors are suitable for DIN-rail mount-ing and feature robust screw-type terminals up to 6 mm² cross-section for connection to protection or measurement transformers. Each sensor housing has 4 separate measure-ment channels.

n Voltage measuring ranges: 0 - 150 V or 0 - 300 V n Full galvanic separation of all inputs up to 2,500 Vn Nominal current measuring range for 1 A or 5 A protection or measurement transformers, using external sensorsn Current sensors: high-precision 4-wire measurement shunts or toroidal-core transformersn Maximum measurable current: 5, 20 or 40 times the rated currentn Maximum overcurrent: 100 times the rated current for one secondn Measuring ranges for auxiliary signals: +/- 10 V or +/- 20 mAn Sample rate of the analog inputs 37.5 kHzn Up to 128 separate binary inputs (no common reference point)n 4 relay outputsn Standardized connection technology with IEC 60603-2 D-type plug connectionsn Housing: 19“, 3 U

Rear view

Interface module

Inputmodule 18 x analog &32/48 x binary




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SHERLOG C8 P8SHERLOG C8 / P8

The stationary SHERLOG C8 system and the portable SHERLOG P8 system are the ideal solution for general fault recorder applica-tions and power quality analysis.

Equipment:n 4 voltage inputs up to 300 Vn 4 current inputs for 1 A or 5 A protection or measurement transformersn Maximum measurable current: 40 times the rated currentn Maximum overcurrent: 100 times the rated current for 3 secondsn Sample rate of the analog inputs 12.8 kHzn 12 binary inputs in 3 groupsn 4 relay outputsn Full galvanic separation of all inputs up to 2,500 Vn Robust screw-type terminals for direct connection to protection transformersn Connection of measurement signals via Combicon screw-type terminalsn Housing: 19“, 3 U

Benefits to the user

Detailed event recordings are available shortly after the occur-rence of a fault.

The integrated message management features comprehensive notification functions for faults, enabling immediate action to be taken even when more than one department is involved.

Cost reductions result from the early detection of power system disturbances while detailed information on faults and automatic initial evaluation with fault location lead to shorter power sys-tem downtimes.

Power systems become transparent thanks to the continuous re-cording of power system activity. Sources of disturbances can be identified and potential energy savings revealed.

Proof of power system faults and of disturbance-free system op-eration in particular can be provided to customers at any time.

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n

n

n

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OfficeNetwork

Analysis PCs

Service & Analysis

Substation Network

LAN / WAN / GSM

Database &Administration

Fault and DataAnalysis on Substation Level

Firewall

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SoftwareA common software package is available for controlling and operating EPPE and SHERLOG systems alike. This modular software is highly flexible and can provide solutions for even very specialised measurement tasks.

The measuring systems of the EPPE product range can also be operated with basic software which is specially designed to meet the requirements of power quality measurement and is very simple to use. The EPPE basic software and the NRG-Center professional software both contain powerful tools for evaluation and analysis.

EPPE basic software

The EPPE software allows automatic evaluation and assess-ment of power quality to international standards. A quick overview feature keeps users abreast of the supply situation at a glance. Comprehensive graphs and tables of voltage fluc-tuations, harmonics, flicker and other power system parame-ters, such as reactive power and unbalance, can be displayed for in-depth analysis of the quality of supply. Outstanding features of the EPPE software include the following:n Easy operationn Flexible parameterization of the measurement taskn Online display of measured values

n Practical evaluation functionsn Comprehensive graphs and tablesn Export as CSV, COMTRADE, PQDIF or PDF filen Report creation

The NRGCenter software contains all the tools which are needed in order to carry out and evaluate measurement tasks. The spectrum ranges from the manual operation of a single measuring device to the administration of complex groups of measuring devices with fully automatic processes for data transfer, evaluation, fault location and report man-agement. The software features an ergonomically designed graphical user interface which is geared to meet real-world requirements.

The advantages of the NRGCenter software include the following:

n Common software for all EPPE and SHERLOG devicesn Flexible parameterization for optimum customisation to measurement tasksn Automatic measurement operation with self-monitoringn Easy-to-use data evaluation and report creation

EPPE basic software

NRGCenter professional softwareNRGCenter professional software

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The powerful fault locator can be used to locate recorded dis-turbances. It can quickly characterise faults to support main-tenance personnel as well as calculating the fault loop and detailing the fault type, fault impedance and distance from the measurement location.

A formula editor can be used to make further mathematical calculations within fault records. The results are added to the fault record as an additional signal.

Import and export functions enable data to be exchanged between different systems using standard COMTRADE, CSV and PQDIF file formats.

Online access to instantaneous measurement valuesAll the quantities measured or calculated by the device can be called up online and displayed on a PC without affecting the data recording which is currently in progress. The mea-surement values can be combined within display windows, rather as they can be in a control centre system. In addition to numerical display, the system also provides a range of graph-ical display options including analog pointer instruments, vector diagrams, bar graphs and oscilloscope displays.

Setting parametersThe configuration module takes into account the actualities and requirements of modern power supply systems in a very practical way. Measuring range parameters can be entered in the form of transformer ratios, while lines and bus bars can be config-ured using appropriate network models. The device parame-ters and specific configurations for individual measurement locations are saved and managed in a database.

EvaluationThe software contains a comprehensive range of powerful analysis tools for the assessment of recorded data. Values can be displayed both numerically and graphically in each evaluation mode. Events are classified automatically according to pre-defined guidelines.

n Long term and trend recordings n Event recordingsn Power quality analysisn Flicker analysisn Harmonics analysisn Analysis of sub-harmonicsn Online measurement value displaysn Graphical and numerical measurement value displaysn Event classification und assessment (UNIPEDE, ITIC, etc.)n Graphical display of extreme value duration distributionn Table overview of limit value violationsn User-defined limit value and analysis settings

KoCoS Messtechnik AGSuedring 42D-34497 Korbach, GermanyTel. +49 5631 9596-0Fax +49 5631 [email protected] Su

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