OSMAutomatic Circuit Recloser15kV, 16kA, 630A27kV, 12.5kA, 630A

Tavrida Electric is a specialist in the development and manufacturing of

medium voltage switchgear products for indoor and outdoor applications.

20 years ago Tavrida Electric was the first company to introduce a

vacuum circuit breaker with magnetic actuators.

Through fundamental research into magnetic actuators, vacuum

interrupters and insulator design, Tavrida Electric has created the most

compact, light weight and reliable circuit breaker device in the market.

More than 250,000 vacuum circuit breakers and over 13,000 reclosers

installed worldwide make Tavrida Electric a leading manufacturer for

medium voltage vacuum switchgear.

All of our products have been extensively tested internally and by

reputable independent laboratories such as KEMA, CESI, SABS and many

more.

We maintain a quality system in full compliance with ISO9001-2008 that

is externally audited and certified by KEMA.

Regional offices in more than 22 countries provide our customers with

integrated solutions based on our innovative products combined with

unrivalled service.

Introduction

Tavrida Electric’s autoreclosers are designed for use on overhead

distribution lines as well as in distribution substation applications for

voltages up to 27kV.

Outdoor Circuit Breaker (OSM)

The air insulated OSM incorporates Tavrida Electric's vacuum circuit

breaker with single coil magnetic actuator in a tank made of corrosion

resistant aluminium alloy. The six main circuit bushings are made from

UV stable polymer and are completely covered by silicone rubber bushing

boots. Each bushing has built-in current and voltage sensors.

Recloser Control (RC)

The RC is a microprocessor based controller that provides all protection,

metering, data logging and communications functions.

TELARM

TELARM software allows easy communication between a PC and the

recloser control. In addition TELARM allows the calculation and testing

of best possible protection settings based on real network data taking

into consideration upstream and downstream devices.

Outdoor Circuit Breaker (OSM)

Tavrida Electric’s outdoor circuit breakers provide the following advantages:

Environmental Friendly

The OSM/TEL 15.5-16/630-204 and the OSM/TEL 27-12.5/630-205 are air insulated outdoor circuit breaker. The patented combined insulation makes them an environmental friendly option.Built for the worst conditions, the OSM has been tested at the KIPTS harsh environment test labs in South Africa, achieving the highest rating for both pollution and weather resistance. Worldwide installations have shown the OSM performing at the most extreme temperatures, from -50�C�C

in Russia to +55�C in the Middle East.�C in the Middle East. in the Middle East.

Lowest Weight

Tavrida Electric’s light weight vacuum circuit breaker and the robust aluminium tank contribute to the total weight of the OSM of not more than 72kg making this the most light weight outdoor circuit breaker in the market. Consequently shipment, handling and installation are simplified to the

greatest extent.

Highest Availability

30,000 C-O operations with rated current and 200 operations with full short circuit breaking current without any maintenance makes them the

most reliable product in the market.

Optimized Measurement

All OSMs are equipped with voltage sensors in all six bushings to measure each 3-phase voltages on both recloser sides. Non-saturable Rogowski coils in all 6 bushings guarantee high accuracy over a wide measurement range. They measure 3-phase currents and residual currents simultaneously.

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1. Terminal

2. Six HV bushings

3. Current transformers built into the bushings

4. Vacuum circuit breaker

5. Protective tank

6. Mechanical position indicator

7. Manual trip operation mechanism

8. Protective lid with Harting connector

9. Support rail

The OSM is provided with six main circuit bushings manufactured from

UV stable polymer. They are covered by light grey silicone rubber bushing

boots which provide a creepage distance of 500mm for the 15.5kV and

860mm for the 27kV version.

Each OSM is equipped with a vacuum circuit breaker. Tavrida Electric

has simplified the mechanical structure of the vacuum circuit breaker

to the greatest possible degree. It uses three single coil magnetic

actuators, one per pole. All switching elements are assembled along a

single axis. All mechanical movements are therefore direct and linear.

The three actuators are mounted in a steel frame and mechanically

linked by a synchronizing shaft.

The result is 30,000 C-O cycles at rated current or 200 operations at full

short-circuit breaking current without the need to replace or adjust any

parts of the vacuum circuit breaker.

Tavrida Electric’s vacuum circuit breakers are entirely maintenance free

over a total life expectancy of at least 25 years.

The position indicator is located under a protective cover at the bottom

of the tank and is clearly visible from the ground. The indicator colour is

red when the OSM is closed and green when it is open.

The OSM can be mechanically tripped using the mechanical hook stick

operated lever in the base of the tank. When pulled down the OSM is

mechanically locked in the OPEN position and electrically interlocked

against closing.

Until the hook stick lever is pushed back in the closed position the OSM

remains locked and cannot be electrically operated.

The RC is a microprocessor based controller that provides directional overcurrent, earth fault and sensitive earth fault protection, auto reclosing, instantaneous metering, event log, demand logger and RTU for remote control in a single enclosure. The protection functions support applications such as radial line or ring line reclosers.Communication is supported by DNP3 and Modbus protocols.

The operator panel is provided with a 6-line backlit LCD, a USB port and a keypad to provide local control functions.

The power supply module provides the auxiliary power supply, radio power supply and battery charging function. The power supply module accepts a range of 85 - 265 V AC and DC.Temperature compensated float charging is provided to the sealed lead acid batteries located in the RC control cubicle.

Space is provided inside the RC control cubicle to install any communications equipment to be connected to the in-built RTU or I/O module.

The cubicle is constructed out of powder coated aluminium for a long, maintenance free lifetime. The roof features a ceramic based insulating coating that provides a 16C reduction in internal temperature when the

cubicle is exposed to 1.1kW of solar radiation.

Protection

The RC allows protection against the following types of faults:• Short circuit fault• Bolted fault (the bolted fault element works independently from the

short-circuit protection elements and thus provides more settings

flexibility)• Single-phase and double-phase earth-faults• High-resistive earth fault and leakage current• Upstream and downstream broken wire• Undervoltage• Overvoltage• Underfrequency

Recloser Control (RC)

RC-05

Measurement

Voltage and current is measured on all six bushings of the OSM:

Value Range Accuracy

Phase currents 0…7,000A the greater of ± 1% or ± 2A

Residual current 0…7,000A the greater of ± 5% or ± 5A

Positive sequence current 0…7,000A the greater of ± 1% or ± 2A

Negative sequence current 0…7,000A the greater of ± 1% or ± 2A

Positive sequence voltage 0…18kV the greater of ± 1% or ± 0.1kV

Negative sequence voltage 0…18kV the greater of ± 1% or ± 0.1kV

Frequency 40…65Hz ± 0.025Hz

Single phase power factor 0….0.01 ± 0.02

Three phase power factor 0…0.01 ± 0.02

Phase-to-earth voltages 0…18kV the greater of ± 1% or ± 0.1kV

Phase-to-phase voltages 0…30kV the greater of ± 1% or ± 0.1kV

Positive sequence active power 0…65,535kW ± 2%

Single-phase active power 0…65,535kW ± 2%

Three-phase active power 0…65,535kW ± 2%

Single-phase reactive power 0…65,535kVAr ± 2%

Three-phase reactive power 0…65,535kVAr ± 2%

Single-phase active energy 0…9,999,999kWh ± 2%

Three-phase active energy 0…9,999,999kWh ± 2%

Single-phase reactive energy 0…9,999,999kVArh ± 2%

Three-phase reactive energy 0…9,999,999kVArh ± 2%

The RC also provides hot line tag and advanced algorithm for zone

sequence coordination.

Loss of supply protection and automatic backfeed restoration allows for a

smart power backup with automatic isolation of the faulty section

whereby two feeders are tied by a ‘normally open’ recloser.

Logs

The RC provides an event log, time and date stamped with a resolution of 0.001 sec. The log is viewable from the LCD display and provides critical operations data for the linesman such as close/trip operations, fault types, phase and peak level of fault current and autoreclosing. The full log with all operational history including setting change, operational and fault history logs is viewable on PC with TELARM.

Load profile is logged with a user configured integration period of 5, 10, 15, 30 or 60 minutes. The following parameters are logged separately for both positive and negative power flow:• 3 phase kW, kVA and kVAr• 1 phase kW, kVA and kVAr for each

Up to 3840 events can be stored in the memory which corresponds to 160 days with a 60 minute integration period. TELARM software can be used to upload and plot the data.

An outstanding feature of the RC log is its ability to provide a fault profile. Each time the controller detects a fault in the line, it is recorded and can be downloaded and viewed on a P.C at a later stage. The fault profile consists of measured and calculated fault parameters and recloser protection elements statuses.Starting from the fault appearance the RC records fault parameters like phase currents, zero sequence current and positive/negative sequence voltages every cycle until the recloser trips. This allows to analyze evolving faults. Up to 10,000 records can be stored in the RC. The fault profile supplies the engineer with all the data required for an in-depth analysis of each fault.

TELARM

A significant issue for any recloser commissioning is to be certain that

the settings will properly protect the grid. The existing method of

developing protection settings is highly complex. A protection and

control design is based on a single-line diagram, indicating the bus

arrangement and components such as reclosers, generators, power

transformers, fuses, and capacitors. Third-party software tools are

widely used for the calculation. These tools are often not compatible

and demand manual transfer of results into the recloser controls. Once

the protection settings have been developed the design then has to be

tested with different fault scenarios in order to ensure that the grid is

adequately protected.

The RC-05 is designed to work with Tavrida’s TELARM recloser software.

TELARM has been designed to eliminate the extraordinary complexity of

calculating and testing of optimal recloser settings.

Tavrida Electric offers a complete hardware and software solution that

allows the engineer to:

• Conveniently and accurately model the distribution grid with intuitive

single line diagrams• Configure all recloser settings • Automatically calculate optimum recloser settings based on real

network data• Simulate and test the recloser settings even under the most complex

fault scenarios in the realistic modelled real network environment• Upload the tested settings directly to the recloser control • Download settings and log data from the recloser control • Generate graphs of fault and load profile data

With an increasingly complex grid, TELARM represents a true SmartGrid

solution. With recloser controls offering an almost exponential number

of possible settings, TELARM solves the problem of determining the

optimal settings and thereby utilizing the full advantages of a recloser

network.

Recloser Settings Calculation - the TELARM Way

step 1: Using easy graphic editor to model your grid with all the protection devices installed.

step 2: Automatically calculate protection settings of the installed reclosers. Settings will be automatically coordinated with existing protection devices like fuses.

step 4: Download settings to devices installed in real feeder.

step 3: Simulate and verify the grid behaviour under normal and fault operating conditions.

User-Defined Data Generator (UDDG)

The RC supports the generation of user-defined signals. For this purpose TELARM provides graphical editor with easy and intuitive interface for the schematic drawing of a special signal.Any indication signal can be processed using the set of operators (logical OR, AND, XOR as well as relay and trigger).A sample circuit is shown which generates an alarm signal when the current in either of 3 phases exceeds the level of 50A.User defined signals are available through any communication interfaces supported in RC.

TELARM Dispatcher Interface

The TELARM Dispatcher Interface allows remote communication with the OSM reclosers via Internet. SSL technology is used to secure communications with the reclosers. TELARM can be connected to all reclosers simultaneously. Selectable indication signals can be displayed in the network diagram near the corresponding recloser.

Outdoor Circuit Breaker (OSM)

Basic Operating Parameters OSM/TEL15.5-16/630-204

OSM/TEL27-12.5/630-205

Rated data

Rated voltage (Ur) 15.5 kV 27 kV

Rated power frequency withstand voltage (Ud), 1 min dry 50 kV 60 kV

Rated power frequency withstand voltage, 10 s wet 45 kV 50 kV

Rated lightning impulse withstand voltage (peak) (Up) 110 kV 125 kV 1)

Rated current (Ir) 630 A

Cable charging current 31.5 A

Line charging current 10 A

Rated short-circuit breaking current (Isc) 16 kA 12.5kA

Rated peak withstand current (Ip) 40 kA 31.5kA

Rated short-time withstand current (Ik) 16 kA 12.5 kA

Rated duration of short ciruit (tk) 4 s 4 s

Rated frequency (fr) 50/60 Hz

Switching performance

Mechanical life (CO-cycles) 30,000

Operating cycles, rated current (CO-cyles) 30,000

Operating cycles, rated-short circuit breaking current (O-operations) 200

Closing time, not more than 77 ms

Opening time, not more than 32 ms

Rated operating sequence O-0.1s-CO-1s-CO-1s-CO

Standards

StandardsIEC 62271-100IEC 62271-200

IEC C37.60-2003

Other data

Resistance of main circuit < 85 µOhm < 95 µOhm

Weight 65 kg 70 kg

Altitude3000 m (above 1000m derating

according to ANSI C37.60)

Humidity 100%, condensing

Solar radiation ≤ 1.1 kW/m2

Temperature range -40�C�C...+55�C�C

Type of driving mechanism Monostable magnetic actuator

Pollution level very heavy (as defined in IEC 60815)

Recloser Control (RC)

Basic Operating ParametersValue

RC/TEL-05E

Rated frequency 50/60 Hz

Rated cubicle (auxiliary) supply voltage 85...265 V AC/DC

Rated operating sequence O-0.1s-CO-1s-CO-1s-CO-60s

Degree of protection IP54

Temperature range -40�C�C...+55�C�C

Maximum humidity 100 %

Maximum altitude above sea level 2000 m

Vibration endurance (Pole mounted) IEC 60255-21-1 Class 1, test acceleration 1.5g

Vibration response (Pole mounted) IEC 60255-21-1 Class 2

Shock response (Pole mounted) IEC 60255-21-2 Class 1

Bump GOST 17516.1-90, class M7, GOST 16962.2-90

Seismic IEC 60255-21-3 Class 1

Operating time after loss of auxiliary supply 2), hours,not less:- at +25�C�C- at -40�C�C- at +55�C�C

481248

RTU power supply:- voltage range- max output power- max output power at 0.5 duty cycle (range 12-15 V)

5...15 V, step 0.5 V15 W30 W

Maximum power consumption of RC from auxiliary supply 60 W

Weight 29 kg 3)

Dimensions 450x860x390 mm

Notes:1) 150kV on request2) Without providing power for RTU and USB, without IOM, CPM off 3) Battery, IOM and RTU are not included.

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South AfricaTavrida Electric Africa (Pty) Ltd.Cnr.Van Dyk and Commissioner StreetsBoksburg East, Gauteng, Republic of South AfricaPhone: + 27 11 9142199Fax: + 27 11 9180584E-Mail: info@tavrida.co.zaWeb: www.tavrida.co.za

ChinaTavrida Electric (Beijing) Co., Ltd.First Floor West, Building 11, No. 28 Yuhua Road, Area B, Beijing Airport Industrial Zone, 101300 Beijing, ChinaPhone: +86 (10) 8049 2474/5474Fax: +86 (10) 8049 7114E-Mail: info@tavrida.cnWeb: www.tavrida.cn

GermanyTavrida Electric GmbHGeorgstr. 7, 88069 TettnangGermanyPhone: + 49 (0) 7542 9467851Fax: + 49 (0) 7542 9467861E-Mail: info@tavrida.deWeb: www.tavrida.de

SwitzerlandTavrida Electric AGRheinweg 4, 8200 SchaffhausenSwitzerlandPhone: + 41 (0) 52 630 26 00Fax: + 41 (0) 52 630 26 09E-Mail: info@tavrida.chWeb: www.tavrida.ch

IndiaTavrida Electric India Private Limited15 NC, Block-A, New AliporeKolkata - 700 053, West Bengal, IndiaPhone: +91 33 2488 1715/3260 8634Fax: +91 33 2488 1766E-Mail: info@tavrida.inWeb: www.tavrida.in

AustraliaTavrida Electric Australia Pty Ltd.5/490 Frankston Dandenong RoadCarrum Downs Victoria 3201AustraliaPhone: +61 3 97867444Fax: +61 3 90119681E-Mail: info@tavrida.com.auWeb: www.tavrida.com.au

If your country is not listed above please consult www.tavrida.com to find your nearest Tavrida Electric partner.

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Tavrida Electric applies a policy of ongoing development and reserves the right to change product without notice. Tavrida Electric does not accept any responsibility for loss or damage incurred as a result of acting or refraining from action based on information in this Product Guide.