ISMD€¦ · The draw-out version of the ISM is intended for indoor installations in air-insulated switchgears. It is equipped with the innovative switching module from Tavrida Electric

ISMDWithdrawable Vacuum Circuit Breaker 12kV, ...31.5kA, ...2000A

Product Guide

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 300,000 vacuum circuit breakers and over

18,000 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.

Design

The draw-out version of the ISM is intended for indoor installations in air-insulated switchgears. It

is equipped with the innovative switching module from Tavrida Electric and is available with

various ratings and Pole centre distances (PCD).

Draw-Out Unit

Withdrawable ISM

10

12

11

13

14

2

3

4

5

6

7

89

1

1. Actuator for secondary plug blocking

2. Control wiring plug

3. Electrical trip/close buttons

4. Operating counter

5. Main contacts position indication

6. CM signalling and indication

7. Mechanical trip and interlocking device

integrated in the interlocking system

8. Racking mechanism of draw-out plate

9. Fixing mechanism of draw-out plate

10. Main contact upper terminal

11. Main contact lower terminal

12. Draw-out plate

13. Draw-out plate auxiliary switches module

14. Draw-out plate wiring and plugs

10

12

11

2

3

4

5

6

7

89

1

Top Availability & ReliabilityInterlocksOne Cycle InterruptionFast Automatic TransferEmergency power supplyMinimum Cost of OwnershipOur Commitment to You

Unique Advantages

Conventional circuit breakers use complicated

mechanisms to transfer actions from a single actuator

into the movements of three arc quenching contacts.

Beyond this, the movable contacts are fixed in their

OPEN and CLOSED positions through the use of

mechanical latches. These mechanical arrangements

are subject to severe stresses at C-O operations and are

the main reason for circuit breaker failures.

Tavrida Electric has simplified this mechanical

structure to the greatest possible degree. The ISM

vacuum circuit breaker uses three single-coil magnetic

actuators, one per pole. All the 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.

Failure of critical components, such as

• mechanical latching

• gears, chains, bearings and levers

• tripping and closing coils

• motors to charge springs are completely avoided.

Highly Reliable Drive Mechanism

Top Availability & Reliability

Maximizing the benefits of the driving mechanism

requires vacuum interrupters that combine small

dimensions with an extraordinary long mechanical and

electrical lifespan.

The use of a predefined axial magnetic field provides

even distribution of current density and consequently

substantial improvement of vacuum interrupting

performance.

Selected contact material and special contact design

together with optimized movement and switching

speed result in bounce-free closing.

Substantial increase in mechanical lifespan as well as

size reduction of Tavrida Electric vacuum

interrupters was achieved by utilizing metal bellows

consisting of single discs as opposed to the

conventional use of folded steel.

This has resulted in 50 000 (150 000 at response) C-O

cycles at rated current or 100 operations at full short

circuit breaking current without the need to replace or

adjust any parts of the ISM.

Tavrida Electric´s vacuum circuit breaker are

maintenance free over the total life expectancy of at

least 30 years.

Compact Vacuum Interrupter

Finely dispersed vacuum arc resulting from stabilizing effect of the axial magnetic field.

Comparison of metal bellows: Folded steel and TEL-type of welded single discs.

Family of TEL-type vacuum interrupters.

Interlocks

The draw-out unit provides all the interlocks needed to

guarantee the high level of safety and reliability both

for the installation commissioning and operation.

Standard safety interlocks

• The draw-out unit can only be moved if the ISM is

open and locked.

• The ISM can only be unlocked and operated if the

draw-out unit is precisely in the test or service

position.

• The electromechanical interlocks can only be

unlocked and operated if the draw out unit is

precisely in the test or service position.

Interlocks connected with switchgear (the draw-out unit inserted into switchgear)

• The draw-out unit can only be moved when the earth

switch is open.

• The earth switch can only be closed when the

draw-out unit is in test/disconnected position.

• The draw-put unit can only be moved if bus bars

in Switchgear are not earthed (electrical interlock on

request)

1

2

3

1. Sticker2. Interlocking system3. Operating handle

An arc fault instantaneously releases large amounts of

energy. Arcing time is a critical factor in limiting the

damage and risk of personal injury resulting from an

arc flash. The total arching time is determined by both

relay response time and circuit breaker opening times.

One Cycle Interruption -Reducing Arc Flash Hazards

One Cycle Interrupcion

Arc Flash Safety

The energy released in an arc fault is directly

proportional to the total clearing time. Whilst relay

response times have improved, medium voltage

circuit breaker opening times are usually as long as

five cycles!

Tavrida circuit breakers are designed with the entire

concept in mind – optimizing vacuum interrupter,

insulation, magnetic actuator and control modules.

This has resulted in the fastest circuit breaker, the one

cycle interrupter - a breakthrough for fast switching

and arc flash protection technology.

Once the circuit breaker receives the trip signal from

an arc-flash relay, it is able to interrupt in twelve

milliseconds (HD ISM with CM/TEL-100/220-15-01(S))

to provide increased arc flash hazard mitigation – the

fastest arc fault interruption in the industry – helping

to reduce work-related injuries, fatalities and lost

productivity.

Tavrida circuit breakers are fully compatible with

standard arc-flash relays such as the SEL 751A.

Voltage decreases or complete supply interruptions

represent the most important and critical problems

for the quality of energy supply today. It is especially

true that voltage disturbances with electronic control

systems and other sensitive installations can lead to

complete loss of production and long stoppage time.

Possible areas of utilization include, for example:

Auxiliary installations serving power stations

• Steam power stations

• Gas turbine power stations

• Combined cycle power stations

• Nuclear power stations

Environmental technology installations

• Flue gas purification

• Refuse incineration installations

Voltage supply to continuous industrial processes

• Chemical plants

• Industrial facilities with high degrees of automation

• Fiber manufacturing

• Petrochemical processes

Fast Automatic Transfer

In order to realize a permanent availability, the load

is supplied from at least two synchronized feeders

which are independent from one another and which are

equipped with High Speed Transfer Devices. In doing

so, the High Speed Transfer Device has the task of

ensuring uninterrupted continuous operation of the

connected devices in case of a power supply

breakdown, taking into account different physical

factors, through the most rapid possible transfer to a

different feeder kept stand-by.

The typical decay characteristics (voltage and

frequency) of a disconnected busbar and the possible

closing moments are shown in the figure.

Busbar with two feeders

Phas

e an

gle

(deg

ree)

Busb

ar v

olta

ge (

% U

n)

TimeStart

-360o

0

0 100%

Short-termtransfer

Transfer in 1st phase

coincidence

Residual voltage transfer

Long-termtransfer

Phase angle

Busbar voltage

Transfer relay

M M

n. o.n. c.

Busbar

Feeder 2Feeder 1

The execution of fast transfers is the most preferred.

A fast transfer takes place when the both the main and

the stand-by feeder are within specified limit values

at the moment of initiation, e.g. that slip and phase

angle are limited between the networks and the

stand-by voltage lies above a minimum value. Here the

open and close commands to the circuit-breaker from

the High Speed Transfer Device are issued

synchronously. The current-free transfer time occurring

in this case for the users is exclusively dependent upon

the difference between the operating time for closing

and opening the circuit breakers concerned.

Tavrida circuit breakers are designed in a way to

provide both trip and close time minimal in the

industry. Complete changeover can take no more than

50ms with a proper digital relay, for example SUE 3000

or SEL 571, with a current free transfer time (dead

time) 12ms.

An exemplary oscillogram of a fast transfer caused by

main feeder fault with dead time of approximately 20

ms is shown in the figure.

Oscillogram at fast transfer

1. Voltage of the busbar2. Main feeder current3. Stand-by feeder current4. Total CB open time (Fault entry until CB open)5. Dead time without current flow

1

2

3

4 5

In case of power supply failure the TEL manual

generator MG/TEL-80/110-40-01 can be used as

reserve power supply for control module installed on

Draw-out unit.

This optional amendment allows having an opportunity

of performing emergence close operation at any time

independently from availability of

standard or emergency power supply system and

allows to increase reliability and applicability of the

TEL vacuum circuit breakers sufficiently.

Emergency power supply

Manual Generator MG/TEL-80/110-40-01

When purchasing equipment various cost criteria have

to be evaluated, the so called Life Cycle Cost (LCC).

LCC studies measure the impact of a system or project

on long term budgets and its operating impact. The

studies examine factors such as product purchase cost,

maintenance cost, non-availability cost and design

parameters.

The moment you buy, you decide what total cost you

will be facing throughout the life cycle!

• Thanks to its large number of switching operations,

the ISM remains in service longer than any other

vacuum circuit breaker.

• Compact switchgear solutions not only help save

material costs but also provide additional cost

savings because of reduced space requirements.

• Highest availability reduces down-time to an

absolute minimum.

• It is maintenance-free, thus reducing overall costs

drastically.

Minimum Cost of Ownership

Benchmark Product Product + Maintenance Cost

Life Cycle Cost

ISM Product Cost

Life

Cyc

le C

ost

50.000C-O Cycle

$

30.000

All Tavrida Electric vacuum circuit breakers are

manufactured from environmentally friendly materials.

Thus no special waste disposal is required.

Quality Standards

All Tavrida Electric manufacturing facilities are KEMA

and DEKRA certified as per compliant standards (DIN

EN) ISO 9001:2008 and ISO 14001:2004. From

inception of the first manufacturing process to the

final testing, all product technical data has been

recorded in a data base.

All Tavrida Electric vacuum circuit breakers are tested

in accordance with the relevant standards and beyond

as follows:

• 1,000 C-O operations.

• Insulation strength of main circuits and auxiliary

circuits at rated frequency.

• Making and breaking times and main circuit

resistances are measured.

Extended Warranty Period

Tavrida Electric provides a warranty period of 2 years

as our terms and conditions.

Environmental Acceptability

Our Commitment to You

ISO 9001:2008 and 14001:2004 certificates

Type Test Report

Withdrawable ISMs Product Range

Product Range

Pole Center Distance

Terminal Center Distance

Rated voltage

Rated short-circuit breaking current Rated current Rated auxiliary

voltage Type designation

mm mm kV kA A

150 205 12

20

630100-220V AC/DC ISM/TEL-12-20/630-067D (XXVUC-XX)

24-60V DC ISM/TEL-12-20/630-067D (XXVDC-XX)





25





31.5

630100-220V AC/DC ISM/TEL-12-31.5/630-111D (XXVUC-XX)

24-60V DC ISM/TEL-12-31.5/630-111D (XXVDC-XX)



210

205

12

20







310





205

25




24-60V DC ISM/TEL-12-25/1250-114D (XXVUC-XX)

310





205

31.5





310





Withdrawable ISMs Product Range

Pole Center Distance

Terminal Center Distance

Rated voltage

Rated short-circuit breaking current Rated current Rated auxiliary

voltage Type designation

mm mm kV kA A

275 310 12

25





31.5





Withdrawable ISM

Technical Data

Type ...-055D, ...-067D ...-111D, ...-114D, ...-116D

Rated dataRated voltage (Ur) 12 kV

Rated current (Ir) to 800 A to 2000 A

Rated power frequency withstand voltage (Ud) 28/42 kV 1)

Rated lightning impulse withstand voltage (peak) (Up) 75 kV 2)

Rated short-circuit breaking current (Isc) to 20 kA 3) to 31.5 kA 3)

Rated peak withstand current (Ip) to 52 kA to 82 kA

Rated short-time withstand current (Ik) to 20 kA to 31.5 kA

Rated duration of short circuit (tk) 4 s

Rated frequency (fr) 50/60 Hz

Switching performanceMechanical life (CO-cycles) 30 000 4) 30 000

Maximum number of CO-cycles per hour 100

Number of O-operations, rated–short circuit breaking current 100 50

Closing time, not more than 65 ms 43 ms

Opening time, not more than 32 ms 25 ms

Break time, not more than 42 ms 35 ms

Rated operating sequence O-0.3s-CO-15s-CO

Standards

StandardsIEC 62271-100GB 1984-2003

Main circuit resistanceResistance of main circuit, not more than 55 µOhm 40 µOhm

Performance of racking in and out of draw-out unit inside of switchgearMechanical life (between test and service position cycles) 2 000

Design, switching capacity auxiliary contacts

ISM auxiliary contactsNumber of available auxiliary contacts 6 NO + 6 NC

Minimum current for 12 V AC / DC, ohmic load 100 mA

Minimum current for 12 V AC / DC, inductive load (t=20 ms, cosj =0.3) 100 mA

Maximum current for 30 V DC, ohmic load 5 A 5)

Maximum current for 30 V DC, inductive load (t=20 ms) 3 A

Maximum current for 60 V DC, ohmic load 0.9 A

Maximum current for 60 V DC, inductive load (t=20 ms) 0.9 A




Type ...-055D, ...-067D ...-111D, ...-114D, ...-116D


Maximum current for 250 V AC, ohmic load 5 A 5)

Maximum current for 250 V AC, inductive load (cosj =0.3) 5 A

Draw-out unit auxiliary contactsNumber of available auxiliary contacts 5NO in Test position + 5NO in Service position

Rated current for voltage up to 660 V AC 10 A

Control modules switching parameters of signaling relay contactsNumber of available auxiliary contacts 2NO

Rated AC voltage 240 V

Rated AC current 16 A

Maximum breaking power AC 4000 VA

Maximum breaking current for 240 V DC 0.3 A

Range of rated supply voltage of auxiliary circuitsDC current 24 V DC to 60 V DC

110 V DC to 220 V DC

AC current 100 V AC to 220 V AC

Operating range of supply voltage of auxiliary circuitsDC current 19.2 V DC to 75 V DC

85 V DC to 370 V DC

AC current 80 V AC to 275 V AC

Power consumptionCharging the close and trip capacitors, not more than 50 W/70 VA

Permanent power consumption (standby mode), not more than 10 W/15 VA

Reaction timesPreparation time for the operation of the CM after switching on the auxiliary power supply, not more than

15 s

Preparation time for the close operation of the CM after a previous close operation, at not more than

10 s

Preparation time for the trip operation of the CM after switching on the auxiliary power supply, not more than

0.5 s

Trip capability after failure of the auxiliary power supply, at least 30 s

Insulation strength of auxiliary circuitsPower frequency test voltage, kV (1 min) IEC 60255-5 2 kV

Lightning impulse 1.2 m s/50 m s/0.5 J IEC 60255-5 5 kV

Insulation resistance, 1000V DC 5 MOhm

Electromagnetic compatibility (EMC) requirementsVoltage dips, short interruptions and voltage variations immunity to IEC 61000-4-11 Class 4 (A)

Type ...-055D, ...-067D ...-111D, ...-114D, ...-116D

Oscillatory waves immunity to IEC 61000-4-12, 1 MHz, 2.5 kV common mode, 1 kV differential mode

Class 4 (A)

Electrical Fast Transient/Burst Immunity to IEC 61000-4-4, 4 kV Class 4 (A)

Surge Immunity (external AC voltage terminals) to IEC 61000-4-5

- common mode, 4 kV Class 4 (A)

- differential mode, 2 kV Class 3 (A)

Interference immunity to magnetic fields to IEC 61000-4-8

1000 A/m for duration of 1 s Class 3(A)

100 A/m for duration of 60 s Class 3(A)

Interference immunity to pulsed magnetic fields to IEC 61000-4-9, 1000 A/m Class 5 (A)

Interference immunity to damped oscillations of the magnetic fields to

IEC 61000-4-10, 100A/m Class 5 (A)

Climatic factorsMaximum operating ambient temperature IEC 60068-2 +40 ºC

Minimum operating ambient temperature IEC 60068-2 -25 ºC

Maximum humidity 95% (no condensation)

Maximum altitude above sea level 1000 m

1) 42 kV – according to GB 1984-2003 standard 2) 95kV on request 3) At 40% d. c. component 4) 150 000 CO cycles on request5) 10 A current is permissible for 5 minutes

This document is copyright and is intended for users and distributors of Tavrida Electric product. It contains information that is the intellectual property of Tavrida Electric and the document, or any part thereof, should not be copied or reproduced in any form without written permission from Tavrida Electric.

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.

Australia

Tavrida Electric Australia Pty Ltd.5/490 Frankston Dandenong RoadCarrum Downs Victoria 3201AustraliaPhone: +61 3 97867444Fax: +61 3 90119681E-Mail: [email protected]: www.tavrida.com.au

China

Tavrida 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: [email protected]: www.tavrida.cn

South Africa

Tavrida Electric Africa (Pty) Ltd.Cnr.Van Dyk and Commissioner StreetsBoksburg East, Gauteng, 1459, Republic of South AfricaPhone: +27 11 9142199Fax: +27 11 9142323E-Mail: [email protected]: www.tavrida.co.za

Switzerland

Tavrida Electric AGRheinweg 4, 8200 SchaffhausenSwitzerlandPhone: +41 (0) 52 630 26 00Fax: +41 (0) 52 630 26 09E-Mail: [email protected]: www.tavrida.ch

Germany

Tavrida Electric GmbHGeorgstr. 7, 88069 TettnangGermanyPhone: +49 (0) 7542 9467851Fax: +49 (0) 7542 9467861E-Mail: [email protected]: www.tavrida.de

India

Tavrida 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: [email protected]: www.tavrida.in

2221

2100

0000

0000

0000

Doc_

PG_V

CB(I

SMD_

EN),

rev

. A

Documents

ISMD€¦ · The draw-out version of the ISM is intended for indoor installations in air-insulated switchgears. It is equipped with the innovative switching module from Tavrida Electric