ca_vcb_mv_eng

For your safety, please read user's manual thoroughly before operating.Contact the nearest authorized service facility for examination, repair, or adjustment.Please contact qualified service technician when you need maintenance.

Do not disassemble or repair by yourself!Any maintenance and inspection shall be performed by the personnel having expertise concerned.Safety Instructions

LS Industrial Systems (Middle East) FZE Dubai, U.A.E. Address: P.O.Box-114216, API World Tower, 303B, Sheikhe Zayed Road, Dubai, U.A.E. Tel: 971-4-886 5360 Fax: 971-4-886-5361 e-mail: [email protected] LS Industrial Systems Co., Ltd. Dalian, China

Address: No.15, Liaohexi 3-Road, Economic and Technical Development zone, Dalian 116600, ChinaTel: 86-411-8273-7777 Fax: 86-411-8730-7560 e-mail: [email protected] Industrial Systems (Wuxi) Co., Ltd. Wuxi, China

Address: 102-A , National High & New Tech Industrial Development Area, Wuxi, Jiangsu,214028, P.R.ChinaTel: 86-510-8534-6666 Fax: 86-510-522-4078 e-mail: [email protected] Industrial Systems Co., Ltd. Hanoi, Vietnam

Address: Nguyen Khe - Dong Anh - Ha Noi - Viet NamTel: 84-4-882-0222 Fax: 84-4-882-0220 e-mail: [email protected] Industrial Systems Co., Ltd. Hochiminh , Vietnam

Address: 41 Nguyen Thi Minh Khai Str. Yoco Bldg 4th Floor, Hochiminh City, VietnamTel: 84-8-3822-7941 Fax: 84-8-3822-7942 e-mail: [email protected] Industrial Systems Tokyo Office Tokyo, Japan

Address: 16FL, Higashi-Kan, Akasaka Twin Tower 17-22, 2-chome, Akasaka, Minato-ku Tokyo 107-8470, JapanTel: 81-3-3582-9128 Fax: 81-3-3582-2667 e-mail: [email protected] LS Industrial Systems Shanghai Office Shanghai, China

Address: Room E-G, 12th Floor Huamin Empire Plaza, No.726, West Yan'an Road Shanghai 200050, P.R. ChinaTel: 86-21-5237-9977 (609) Fax: 89-21-5237-7191 e-mail: [email protected] Industrial Systems Beijing Office Beijing, China

Address: B-Tower 17FL.Beijing Global Trade Center B/D. No.36, BeiSanHuanDong-Lu, DongCheng-District,Beijing 100013, P.R. ChinaTel: 86-10-5825-6025,7 Fax: 86-10-5825-6026 e-mail: [email protected] Industrial Systems Guangzhou Office Guangzhou, China

Address: Room 1403,14F,New Poly Tower,2 Zhongshan Liu Road,Guangzhou, P.R. ChinaTel: 86-20-8326-6764 Fax: 86-20-8326-6287 e-mail: [email protected] Industrial Systems Chengdu Office Chengdu, China

Address: 12Floor, Guodong Building, No52 Jindun Road Chengdu, 610041, P.R. ChinaTel: 86-28-8612-9151 Fax: 86-28-8612-9236 e-mail: [email protected] Industrial Systems Qingdao Office Qingdao, China

Address: 7B40,Haixin Guangchang Shenye Building B, No.9, Shandong Road Qingdao 26600, P.R. ChinaTel: 86-532-8501-6568 Fax: 86-532-583-3793 e-mail: [email protected]

HEAD OFFICELS Tower, 1026-6 Hokyeh 1dong, Dongan-gu, Anyang, Kyonggi-Do, 431-848, KoreaTel. (82-2)2034-4870Fax. (82-2)2034-4713

CHEONG-JU PLANTCheong-Ju Plant #1, Song Jung Dong, Hung Duk Ku,Cheong Ju, 361-720, Korea

Global Network

Electric Equipmentwww.lsis.biz

Specifications in this catalog are subject to change without notice due to continuous product development and improvement.

2008. 11 Vacuum Circuit Breakers/Vacuum Interrupter(E) 2008. 11/(01) 2008. 11 Printed in Korea STAFF

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2008.11 LS Industrial Systems Co.,Ltd. All rights reserved.

Pro-MECVacuum Circuit Breakers

Vacuum Interrupter

VCB_E__0811 2008.11.25 11:38 PM 1

Ratings H1-4Constructional and operating characteristics H1-10Control circuit diagram H1-117.2kV dimension H1-1212kV dimension H1-2317.5kV dimension H1-2424kV dimension H1-36Accessories H1-44Types and ordering information H1-49

Vacuum Circuit Breaker

Features & Ordering information H1-52Structure H1-53Operating characteristics H1-54Ratings and Specifications H1-55Dimensions H1-58

Vacuum Interrupter

Pro-MEC VCB/VI

H1Contents

Key Lock Padlock of earthing switch Button padlock Position switch of the earthing switch Button cover Locking coil of earthing switch Position switch (Cell switch) Shutter padlock Preparatory trip coil (Secondary trip coil) MOC (Mechanically operated cell switch)

Latch checking switch TOC (Truck operated cell switch) Charge indicator Code plate (Miss insertion prevention) Position padlock Capacitor trip device Earthing switch Note 1) Rectifier

Note 1) The earthing switch is not available for 17.5kV VCB.

Wide range of accessories (optional)

LS Pro-MEC VCB is user-friendly to give more convenience and safety by providing high speed interrupting time (3cycles), adopting the rapid auto-reclosing method, and having wide range of accessories.

7.2kV Draw-out (F class)24kV Draw-out (F class)

Vacuum Circuit BreakerVacuum Circuit Breaker

H1-2

High reliability of the operating mechanism- Separate design of the main circuit from theoperating mechanism.

- Adopt the toggle link method.- Improved the reliability of electric circuit.- Adopt the rapid auto-reclosing method as a standard option. (O-0.3sec.-CO-3min.-CO)

Make short of the interrupting time. (3cycles)Increase the rated short-circuit withstand

characteristics. (1sec. to 3sec.)

Reinforce the insulation in the conduct, by adopting the molded housing in each phase. Built in the device making the contacts open first when draw in and out. Adopt the tulip-shape connection between the cradle and the VCB.

High interrupting performance Great operational safety

Compasion table for VCB (Short circuit test)[ ]

Compasion table for VCB (Short circuit test)

VACUUM CIRCUIT BREAKER

H1-3


H1-4

Ratings

Type LVB-06-20D LVB-06-25DRated voltage (kV) 7.2 7.2Rated normal current (A) 630 1250 2000 630 1250 2000Rated frequency (Hz) 50/60 50/60 Rated short-circuit breaking current (kA) 20 25Rated short-circuit breaking capacity (MVA) 250 310Rated short-time withstand current (kA/3sec) 20 25Rated short-circuit making current (kAp) 52 65Rated breaking time (Cycle) 3 3Rated opening time (sec) 0.04 0.04No-load closing time (sec) 0.06 0.06Withstand Power frequency (kV/min) 20 20voltage Impulse (kV/1.250) 60 60Rated operating sequence O-0.3s-CO-3min-CO O-0.3s-CO-3min-CO

TypeMechanical M2 (10,000 times) M2 (10,000 times)

test Electrical E2 (List1) E2 (List1)Capacitive current switching Note 1) C2 C2

MechanicalWithout maintenance (Time) 20000 20000

LifetimeMaintenance (Time) 30000 30000

ElectricalWithout maintenance (Time) 20000 20000Maintenance (Time) 30000 30000

Auxiliary switch 4a4b, 10a10b 4a4b, 10a10bFixed Visible, Fixed Visible, Fixed Visible, Fixed Visible, Fixed

E-type Visible, Clip Visible, Tulip Visible, Clip Visible, TulipInstalling

Draw-out F-type Visible, Clip Visible, Tulip Visible, Clip Visible, Tulip

methodtype G-type Note 2)

- Visible, Clip Visible, Tulip Visible, Clip Visible, TulipT Enclosed, Tulip Enclosed, Tulip Enclosed, Tulip Enclosed, Tulip

M-type Note 2) Enclosed, Tulip Enclosed, TulipE-type (kg) 94 99 134.5 94 99 134.5

VCB F-type (kg) 95 100 135.5 95 100 135.5Weight G, M-type (kg) 95 (137) 100 (147) 135.5 (163.5) 95(137) 100(147) 135.5(163.5) Note 3) E-type (kg) 37 39.5 60 37 39.5 60

Cradle F-type (kg) 39 41.5 62.5 39 41.5 62.5G-type (kg) 39(103) 41.5(107) 62.5(117) 39(103) 41.5(107) 62.5(117)

Applied standard IEC 62271-100 IEC 62271-100Test laboratory KERI Note 4)

Note 1) Applied cable-charging current switching test2) In the event of ordering Enclosed Tulip type for G class VCB, please add T in the end of type name. (Ex: LVB-06G-20D/06-1A2B-T)3) ( )* indicates the weight of Enclosed Tulip installing method VCB.4) KERI: Korea Electrotechnology Research Institute.

Visible VCB(Draw-out type)

E-type cradle(Visible, Clip contact)

E-type cradle(Visible, Tulip contact)

F -type cradle (Visible, Clip contact)

G-type cradle (Visible, Tulip contact)

H1-5

Type LVB-06-32D LVB-06-40DRated voltage (kV) 7.2 7.2Rated normal current (A) 1250 2000 3150 1250 2000 3150Rated frequency (Hz) 50/60 50/60 Rated short-circuit breaking current (kA) 31.5 40Rated short-circuit breaking capacity (MVA) 390 500Rated short-time withstand current (kA/3sec) 31.5 40Rated short-circuit making current (kAp) 82 104Rated breaking time (Cycle) 3 3Rated opening time (sec) 0.04 0.04No-load closing time (sec) 0.06 0.06Withstand Power frequency (kV/min) 20 20voltage Impulse (kV/1.250) 60 60Rated operating sequence O-0.3s-CO-3min-CO O-0.3s-CO-3min-CO

TypeMechanical M2 (10,000 times) M2 (10,000 times)

test Electrical E2 (List1) E2 (List1)Capacitive current switching Note 1) C2 C2

MechanicalWithout maintenance (Time) 20000 20000

LifetimeMaintenance (Time) 30000 30000

ElectricalWithout maintenance (Time) 20000 20000Maintenance (Time) 30000 30000

Auxiliary switch 4a4b, 10a10b 4a4b, 10a10bFixed Visible, Fixed Visible, Fixed Visible, Fixed Visible, Fixed

E-type Visible, Tulip Visible, Clip Visible, Tulip Visible, TulipInstalling

Draw-outF-type Visible, Tulip Visible, Tulip Visible, Tulip Visible, Tulip

methodtype G-type Note 2)

- Visible, Tulip Visible, Tulip Visible, Tulip Visible, TulipT Enclosed, Tulip - Enclosed, Tulip -

M-type Enclosed, Tulip - Enclosed, Tulip -E-type (kg) 131.5 134.5 210 135 138 210

VCB F-type (kg) 132.5 135.5 211 136 139 211Weight G, M-type (kg) 132.5(159) 135.5(160) 220 136(162.5) 139(163.5) 220 Note 3) E-type (kg) 52 60 131 52 60 131

Cradle F-type (kg) 54.5 62.5 135 54.5 62.5 135G-type (kg) 62.5(110) 135(117) 155 62.5(110) 135(117) 155

Applied standard IEC 62271-100 IEC 62271-100Test laboratory KERI Note 4)

Note 1) Applied cable-charging current switching test2) In the event of ordering Enclosed Tulip type for G class VCB, please add T in the end of type name. (Ex: LVB-06G-20D/06-1A2B-T)3) ( )* indicates the weight of Enclosed Tulip installing method VCB.4) KERI: Korea Electrotechnology Research Institute

Enclosed VCB(Draw-out type, G-type)

G-type Cradle(Enclosed, Tulip contact)

Visible, Clip contact Visible, Tulip contact Enclosed, Tulip contact

Vacuum Circuit BreakerRatings

H1-6

Type LVB-12-25D/06, 12, 20-T LVB-12-32D/12, 20-T, 30 LVB-12-40D/12, 20, 30Rated voltage (kV) 12 12 12Rated normal current (A) 630 1250 2000 1250 2000 3150 1250 2000 3150Rated frequency (Hz) 50(E1,C2: KEMA), 60(E2: PT & T) 60(E1,E2,C2: PT & T) 50(E1,C2:KEMA), 60(M2,E2,C2: PT & T)Rated short-circuit breaking current (kA) 25 31.5 40Rated short-circuit breaking capacity (MVA) 500 650 831Rated short-time withstand current (kA/3sec) 25 31.5 40Rated short-circuit making current (kAp) 62.5 81.9 104Rated breaking time (Cycle) 3Rated opening time (sec) 0.04No-load closing time (sec) 0.06Withstand Power frequency (kV/min) 28voltage Impulse (kV/1.250) 75Rated operating sequence O-0.3s-CO-3min-CO

TypeMechanical M2 (10,000 times)

test Electrical E2 (List 1)Capacitive current switching Note 1) C2

MechanicalWithout maintenance (Time) 20,000

LifetimeMaintenance (Time) 30,000

ElectricalWithout maintenance (Time) 20,000Maintenance (Time) 30,000

Auxiliary switch 4a4b, 10a10bFixed -

Installing E-TYPE -

Method Draw-out F-TYPE -type G-TYPE Enclosed, Tulip Visible, Tulip Enclosed, Tulip Visible, Tulip

M-TYPE Enclosed, Tulip -E-TYPE (kg) -

VCB F-TYPE (kg) -

WeightG, M-TYPE (kg) 137 147 163.5 159 160 220 162 163 220E-TYPE (kg) - - - - - - - - -

Cradle F-TYPE (kg) - - - - - - - - -G, M-TYPE (kg) 103 107 117 110 117 155 110 117 155

Applied standard IEC 62271-100Test laboratory KEMA: E1, C2 PT & T: E2 Note 2) PT & T: E1, E2, C2, M2

Note 1) Applied cable-charging current switching test2) PT&T: Power Testing & Technology Institute (LSIS high-power laboratory)

H1-7

Type LVB-17-25D/06, 12, 20, 25 LVB-17-40D/12, 20,30 Rated voltage (kV) 17.5 17.5Rated normal current (A) 630 1250 2000 2500 1250 2000 3150Rated frequency (Hz) 50/60 60Rated short-circuit breaking current (kA) 25 40Rated short-circuit breaking capacity (MVA) 750 1200Rated short-time withstand current (kA/3sec) 25 40Rated short-circuit making current (kAp) 65 104Rated breaking time (Cycle) 3Rated opening time (sec) 0.04No-load closing time (sec) 0.06Withstand Power frequency (kV/min) 38voltage Impulse (kV/1.250) 95Rated operating sequence O-0.3s-CO-3min-CO

TypeMechanical M2 (10,000 times)

test Electrical E2 (List1)Capacitive current switching Note 1) C2

MechanicalWithout maintenance (Time) 20000

LifetimeMaintenance (Time) 30000

ElectricalWithout maintenance (Time) 20000Maintenance (Time) 30000

Auxiliary switch 4a4b,10a10bFixed Visible, Fixed -

InstallingDraw-out

E-TYPE Visible, Tulip -method

type F-TYPE Visible, Tulip -G-TYPE Visible, Tulip Visible, Tulip

Fixed type VCB (kg) 115 125 135 165 - - -E-TYPE (kg) 130 140 155 195 - - -

VCB F-TYPE (kg) 130 140 155 195 - - -

WeightG-TYPE (kg) 160 170 190 220 200 205 260E-TYPE (kg) 65 67 78 165 - - -

Cradle F-TYPE (kg) 75 77 88 172 - - -G-TYPE (kg) 100 105 115 185 175 175 200

Applied standard IEC 62271-100Test laboratory KEMA , PT&T

Note 1) Applied cable-charging current switching test.

Vacuum Circuit BreakerRatings

H1-8

Fixed type VCB E-type cradle F-type cradle G-type cradle(Withdrawable by screw)

G-type cradle(Withdrawable by lever)

Type LVB-20-13D LVB-20-13D/T LVB-20-16D LVB-20-16D/T LVB-20-25D LVB-20-25D/TRated voltage (kV) 24 24 24Rated normal current (A) 630 630 630

1250 1250 12502000

Rated frequency (Hz) 50/60 50/60 50/60Rated short-circuit breaking current (kA) 12.5 16 25Rated short-circuit breaking capacity (MVA) 520 665 1000Rated short-time withstand current (kA/3sec) 12.5 16 25Rated short-circuit making current (kAp) 32.5 40 65Rated breaking time (Cycle) 3 3 3Rated opening time (sec) 0.04 0.04 0.04No-load closing time (sec) 0.06 0.06 0.06Withstand Power frequency (kV/min) 50 50 50voltage Impulse (kV/1.250) 125 125 125Rated operating sequence O-0.3s-CO-3min-CO O-0.3s-CO-3min-CO O-0.3s-CO-3min-CO

TypeMechanical M2(10,000 times) M2(10,000 times) M2(10,000 times)

test Electrical E2 (List1) E2 (List1) E2 (List1)Capacitive current switching Note 1) C2 C2 C2

MechanicalWithout maintenance (Time) 20000 20000 20000

LifetimeMaintenance (Time) 30000 30000 30000

ElectricalWithout maintenance (Time) 20000 20000 20000Maintenance (Time) 30000 30000 30000

Auxiliary switch 4a4b, 10a10b 4a4b, 10a10b 4a4b, 10a10bFixed Visible, Fixed - Visible, Fixed - Visible, Fixed -

E-type Visible, Clip Enclosed, Tulip Visible, Clip Enclosed, Tulip Visible, Clip Enclosed, TulipInstalling

Draw-out F-type Visible, Clip Enclosed, Tulip Visible, Clip Enclosed, Tulip Visible, Clip Enclosed, Tulipmethod

type G-type Note 2) Visible, Tulip Enclosed, Tulip Visible, Tulip Enclosed, Tulip Visible, Tulip Enclosed, TulipM-type - Enclosed, Tulip - Enclosed, Tulip - Enclosed, TulipE-type (kg) 145 145 145 145 145 145

VCB F-type (kg) 145 145 145 145 145 145

Weight G, M-type (kg) 155 187 155 187 155 187/218 (2000A)E-type (kg) 80 80 80 80 80 80

Cradle F-type (kg) 82 82 82 82 82 82G-type (kg) 110 120 110 120 110 120

Applied standard IEC 62271-100 IEC 62271-100 IEC 62271-100

Test laboratory KERI - KEMA -

Note 1) Applied cable-charging breaking current2) In the event of ordering Enclosed Tulip type for G class VCB, please add T in the end of type name. (Ex: LVB-06G-20D/06-1A2B-T)

H1-9

VCBON OFF

a contactON OFF

bcontactOFFON

Motor

Closing Coil (C)The coil operated only when the power is applied continuouslyover 45ms. It has built-in electrically anti-pumping circuit.

Position of the Aux.contact switch

Note 1) Range of the normal operating voltage: 85~110%2) DC 24V is the underdeveloped rating.

Shunt coil (TC)When the VCB is 'ON' position, even though the control powerof a shunt coil is 'OFF', the VCB maintains the 'ON' position.


Auxiliary switchStandard 4a4b / Optional 10a10b

Charge indicator ofthe closing springIndicating the condition of the closing spring.

Position indicator of the main contactsIndicating the 'Close' or the 'Open' of the main contacts.Close position: ON Open position: OFF

CounterMechanically counts the switching of the VCB by 5digits analog type counter (Standard option)

Charged Discharged

Close position Open position

When the closing spring is charged, the control power of motor is turned off by the built-in limit s/w.


Note) The contact capacity of the following accessories are the same with that of the Aux. switch. Position switch, Closing springcontact, Charging complete indicating contact, Position switch of the earthing switch, Mechanically operated cell switch,Truck operated cell switch.

The peak value of the Consumption Charging timeRated voltageinrush current (A) Rated current (A) power (W) (Sec.)

DC 48V 21 4 350 13DC 110V 20 3 330 12DC 125V 20 3 330 12DC 220V 17 2.6 374 12

Classification General Inductive Contact load (A) load (A) configuration

AC250V 10 5125V 10 5

Contact Ratings 250V 10 5 4a4b

DC 125V 10 5 10a10b

30V 10 5

Rated voltage Rated current (A)

DC 48V 6DC 110V 3DC 125V 3DC 220V 2.5


DC 48V 6DC 110V 3DC 125V 3DC 220V 2.5


H1-10

Constructional and operating characteristics

Manual chargeInsert the charge handle into the manual charge hole in the front of aVCB, and rotate it to clockwise over 40times and the chargecomplete with a metal sound.

Motor chargeIf you apply the control power to a VCB, the closing spring will becharged automatically by a motor and then the control power will beturned off by the built-in limit s/w. Please use the same controlvoltage for motor, Closing coil, Trip coil.

Sequence of the switching mechanism

Charge Indicator of the closing spring

Close button Key lock (Optional) Trip buttonManual charge hole Position indicator

of the main contacts Counter Screw hole for draw-in

and draw-out NameplateMounting hole Safety cover

H1-11

Control circuit diagram

: E

xtern

al te

rmina

l of V

CB52

: Vac

uum

circ

uit b

reak

erM

: Spr

ing ch

argin

g moto

rTC

: Trip

coil

TC1:

Seco

ndar

y Trip

coil

C: C

losing

coil

Y: A

nti-p

ump r

elay

52a:

Aux

iliary

switc

h (N

O)

52b:

Aux

iliary

switc

h (N

C)LS

1: Cl

osing

inter

lock l

imit s

witch

(only

withd

rawab

le typ

e)LS

2: M

otor s

toppin

g, clo

sing s

pring

char

ged i

ndica

tion

LS3:

Anti-c

losing

, anti

-pum

ping l

imit s

witch

LCS1

: Ope

ning

latch

che

cking

swi

tch(pr

even

ting c

losing

unles

s the

trip

latch

is pr

oper

ly re

set)

LS4,

LS5:

Posit

ion s/

w (clo

se in

test p

ositio

n)LS

6, LS

7: Po

sition

s/w

(close

in run

positi

on)

Note

1) LC

S1: La

tch ch

ecking

switch

2) Tr

ip coil

superv

ision (

Trip c

oil mo

nitoring

conta

ct)3)

Positi

on sw

itch: 4a

(Term

inal N

o.: 1, 2

, 3, 4,

5, 6, 7,

8)4)

TC1: S

econd

ary trip

coil (P

repara

tory tr

ip coil

Term

inal N

o.: 82

,83)

5) In

fixed ty

pe VC

B, LS

1 (Clo

sing-c

oil lim

it swit

ch) is

not av

ailable

.

Abov

e circ

uit di

agram

is ba

sed o

n OF

F sta

tus of

VCB

. and

clos

ing sp

ring i

s cha

rged.

Optio

nal a

cces

sorie

s

Conn

ectin

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mina

l arra

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B Ty

peA

Type

H1-12

Vacuum Circuit Breaker7.2kV dimension (VCB)

LVB-06P-20D, 25D, 32D, 40D (Visible, Fixed) - (630/1250/2000A)

LVB-06P-32D, 40D (Visible, Fixed) - (3150A)

Rating 630A 1250AA 6 10

Top

Top

SideFront

SideFront

*125.5 applied to all 7.2kV VCB.

(Unit: mm)

H1-13

LVB-06E, F, G-20D, 25D, 32D, 40D E, F, G class - (630/1250/2000A)

LVB-06G-20D/T, 25D/T, 32D/T, 40D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)

Rating 630A 1250AA 6 10

SideFront

Top

SideFront

(Unit: mm)


H1-14

LVB-06E-32D, 40D E class (Visible, Tulip contact) - (3150A)SideFront

LVB-06F-32D, 40D F class (Visible, Tulip contact) - (3150A)SideFront

Top

Top

(Unit: mm)

H1-15

LVB-06G-32D, 40D G class (Visible, Tulip contact) - (3150A)SideFront

Top

(Unit: mm)


H1-16

7.2kV dimension (Cradle)

(Unit: mm)LCL-06E-20D, 25D E class (Visible, Clip contact) - (630/1250A)

Rating 630A 1250AA 6 10B 55 60C 95 90

SideFront

Top

H1-17

LCL-06E-32D, 40D E class (Visible, Tulip contact) - (3150A)Side TopFront

LCL-06E-20D, 25D, 32D, 40D E class (Visible, Tulip contact)Front

Top

(Unit: mm)

SideRating 1250A 2000A

A 10 20

Vacuum Circuit Breaker7.2kV dimension (Cradle)

H1-18

LCL-06F-20D, 25D F class (Visible, Clip contact) - (630/1250A)(Unit: mm)

Rating 630A 1250AA 6 10B 55 60C 95 90

Side

Side

Front

Top

LCL-06F-20D, 25D F class (Visible, Tulip contact) - (2000A)Front

Top

H1-19

LCL-06F-32D, 40D F class (Visible, Tulip contact) - (3150A)SideFront

Top

LCL-06F-32D, 40D F class (Visible, Tulip contact) - (1250/2000A)Front

Top

(Unit: mm)

SideRating 1250A 2000A

A 10 20


H1-20

LCL-06G-20D, 25D, 32D, 40D G class (Visible, Clip contact) - (630/1250/2000A)(Visible, Tulip contact) - (31.5/40kA 1250/2000A)

Rating 630A 1250A 2000AA 6 10 20

SideFront

Top

(Unit: mm)

H1-21

LCL-06G-20D/T, 25D/T, 32D/T, 40D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)

Rating 20/25kA 31.5/40kA630A 1250A 2000A 1250A 2000A

A 6 12 25 12 25B 29 48 48

SideFront

Top

(Unit: mm)


H1-22

LCL-06G-32D, 40D G class (Visible, Tulip contact) - (3150A)(Unit: mm)

Side

Top

*To connect with VCBs bushing terminalsuser busbar should have below dimensionsand two holes.

H1-23

Top

12kV dimension (VCB)

LVB-12G-25D/T, 32D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)

LVB-12G-40D G class (Enclosed, Tulip contact) - (1250/2000A)

(Unit: mm)

SideFront

470

668

496

150 150

549

726.

5

295

330325

33.5 10288

438

69

355

40kA 1250/2000A G class

SideFront

Vacuum Circuit Breaker12kV dimension (VCB)

H1-24

LVB-12G-40D G class (Enclosed, Tulip contact) - (3150A)

40kA 3150A G class

714

620

360

336

210210

325

290

502747

676

1034

8.5

806.

6

SideFront

Top

(Unit: mm)

H1-25

12kV dimension (Cradle)

LCL-12G-25D/T, 32D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)

Rating 25kA 31.5kA630A 1250A 2000A 1250A 2000A

A 12 25 12 25B 29 48

SideFront

Top

(Unit: mm)

Vacuum Circuit Breaker12kV dimension (Cradle)

H1-26

LCL-12G-40D G class (Enclosed, Tulip contact) - (1250/2000A)

RUN

731.5

94663

029

5

1235

150

150

560

600

100 662

26

8326

60

150150

1250A:12t2000A:25t

40kA 1250/2000A G class

4-14 Mount hole

SideFront

Top

(Unit: mm)

H1-27

LCL-12G-32D/LCL-12G-40D G class (Enclosed, Tulip contact) - (3150A)

40kA 3150A G class

1014

230 230

120

3514

5

70

12 12

764

439

360

1100

210

724100

210

760

800

4-14 Mount hole

SideFront

Top

(Unit: mm)


H1-28

17.5kV dimension (VCB)

LVB-17P-25D (Visible, Fixed) - (630/1250/2000A)(Unit: mm)

Side

Top

Front

LVB-17P-25D (Visible, Fixed) - (2500A)Side TopFront

Rating 630A 1250A/2000AA 6 20

H1-29

LVB-17E, F-25D E, F class (Visible, Tulip contact) - (630/1250/2000A)

Top

SideFront

LVB-17E, F-25D E, F class (Visible, Tulip contact) - (2500A)

(Unit: mm)

Side TopFront


H1-30

LVB-17G-25D G class (Visible, Tulip contact) - (2500A)

(Unit: mm)

SideFront Top

LVB-17G-25D G class (Visible, Tulip contact) - (630/1250/2000A)

Top

SideFront

H1-31

(Unit: mm)LVB-17G-40D G class (Visible, Tulip contact) - (1250/2000A)

Front Side

Front Side Top

Top

LVB-17G-40D G class (Visible, Tulip contact) - (3150A)

H1-32


(Unit: mm)LCL-17E-25D E class (Visible, Tulip contact) - (630/1250/2000A)

Rating 630A 1250A 2000AA 6 10 20

SideFront

Top

H1-33

LCL-17E-25D E class (Visible, Tulip contact) - (2500A)(Unit: mm)

Front Side

Top


H1-34

(Unit: mm)LCL-17F-25D F class (Visible, Tulip contact) - (630/1250/2000A)

Rating 630A 1250A 2000AA 6 10 20

SideFront

Top

H1-35

(Unit: mm)LCL-17F-25D F class (Visible, Tulip contact) - (2500A)Front Side

Top


H1-36

LCL-17G-25D G class (Visible, Tulip contact) - (630/1250/2000A)(Unit: mm)

Rating 630A 1250A 2000AA 6 10 20

SideFront

Top

H1-37

LCL-17G-25D G class (Visible, Tulip contact) - (2500A)(Unit: mm)

SideFront

Top


H1-38

LCL-17G-40D G class (Visible, Tulip contact) - (1250/2000A)Side

Top

(Unit: mm)

H1-39

LCL-17G-40D G class (Visible, Tulip contact) - (3150A)Side

Top

(Unit: mm)


H1-40

24kV dimension (VCB)

LVB-20P-13D, 16D, 25D (Visible, Fixed) - (630/1250/2000A)

LVB-20E, F-13D/(T), 16D/(T), 25D/(T) E, F class - (630/1250/2000A)

Front Side

Front Side

Note ) In case of 12.5kA & 16kA 630A, the dimension shown in parenthesis should be applied.

(Unit: mm)

LVB-20G-13D, 16D, 25D G class (Visible, Tulip contact) - (630/1250A)Front Side

LVB-20G-13D/T, 16D/T, 25D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)Front Side

Note 1) ( ): The dimension shown in parenthesis should be applied to LVB-20G-13E/T or LVB-20G-16E/T, LVB-20G-25E/T for 630A and 1250A in case that distance between phase & phase is 210mm.

2) IP Cover applied both sides in case of 265mm phase distance.

(Unit: mm)

H1-41


H1-42

24kV dimension (Cradle)

Note) Insulation barrirer is not used for rating 12.5kA 630A and 16kA 630A

LCL-20E-13D, 16D, 25D E class (Visible, Clip contact) - (630/1250/2000A)Front Side

Top

Rating A B T630, 1250A 768 190.5 10

2000A 778 185.5 20

(Unit: mm)

H1-43

(Unit: mm)LCL-20E-13D/T, 16D/T, 25D/T E class (Enclosed, Tulip contact) - (630/1250/2000A)

145

97.5

972

280

15

115

660

40 40

25

20 67 47 45

42

40.5

2-14

20

4-14

20

4-14

20

947.5

1167

1120

265 265

110 400

265

400

820

ST: 260

265

404.

5

10(63

0/125

0A)

20(20

00A)

340

1033

245

40

210

210.

590

202

100

300

6.5

40

40

40

40

1250A

40

9080

2000A

8010

0

300

730960

630A

7-14

Front Side

Top

Rating A B T630, 1250A 768 190.5 10

2000A 778 185.5 20



H1-44

LCL-20F-13D, 16D, 25D F class (Visible, Clip contact) - (630/1250/2000A)

Top

Front(Unit: mm)

SideRating A B T

630, 1250A 768 190.5 102000A 778 185.5 20


H1-45

(Unit: mm)LCL-20F-13D/T, 16D/T, 25D/T F class(Enclosed, Tulip contact) - (630/1250/2000A)Front Side

Rating A B T630, 1250A 768 190.5 10

2000A 778 185.5 20

Top



H1-46

LCL-20G-13D, 16D, 25D G class (Visible, Tulip contact) - (630/1250A)Front Side

Top

(Unit: mm)

H1-47

210mm

LCL-20G-13D/T, 16D/T, 25D/T G class (Enclosed, Tulip contact) - (630/1250/2000A)Front Side

Top

Earthing Switch

Note) ( ): The dimension shown in parenthesis should be applied to LVB-20G-13E/T or LVB-20G-16E/T, LVB-20G-25E/T for 630A and 1250A in case that distance between phase & phase is 210mm.

(Unit: mm)


H1-48

Accessories

Note) In case that position of VCBchanged to Run or Test position,a contact will be closed.

Accessories for VCB

Key lock When it is locked by a key, the closing operation is not available(electrically and mechanically) without a Key.

Button padlock Button padlock protects 'ON' or 'OFF' button when accident is occurredby operation at discretion.It is available to operate after release button padlock.

Button coverButton cover protects 'ON' of 'OFF' button when accident isoccurred by operation at discretion. It is available to operate by pushbar.

Position switch (Cell switch)Indicating the position (Run or Test) of a VCB, by mechanicallypressing the switch when a VCB change the position. - RUN: 2a- TEST: 2a

H1-49

Accessories

Accessories for VCBSecondary coil (Preparatory trip coil)The main coil and the preparatory coil is connected in parallel. Soeven though there happens a fault in the trip coil, the VCB can betripped by one of the two trip coils.

Latch checking switchWhen the Latch is in abnormal position, the Latch checking switchprevents the closing operation even though there is the 'Closing'signal.

Charge indicatorRemotely indicates the charging is completed. (Standard Feature) - Terminal No.: 9, 10

Position padlockThe hole to prevent the draw-in and out of a VCB from the presentposition.('Run' or 'Test') Standard option in the interlock lever of the E, F class draw-out typeVCB. (Hole size = 8)

Vacuum Circuit BreakerAccessories

H1-50

Accessories for CradleEarthing switch (for G class draw-out type only)For the safety during the maintenance of a VCB panel, discharge thecharging current in the load side of a VCB with this earthing switch.

Padlock of earthing switch (for G class draw-out type only)The hole to prevent the accident through carelessness earthingswitch operation, the locking of the earthing switch is available whenthe switch is in 'OFF' position. (Hole size = 8)

Position switch of the earthing switch (for G class draw-out type only)Indicates the 'ON' or 'OFF' status of the earthing switch. (5a5b)

Locking coil of earthing switch (for G class draw-out type only)To prevent the accident through carelessness earthing switchoperation, the earthing switch can be changed to 'ON' position afterreleasing the lock by magnetizing the coils.

H1-51

Accessories for CradleShutter padlock The hole to lock the shutters (load and line side) in close position, toincrease the safety during the maintenance of a VCB draw-outposition.(Hole size = 8)

Mechanically operated cell switch (MOC)-for G class draw-out type onlyThe auxiliary switch (3a4b), which Indicate the 'ON' or 'OFF' conditionof a VCB, but operated only when the VCB is in 'Run' state. (Installedin the bottom of a cradle)

Truck operated cell switch (TOC) -for G class draw-out type onlyThe auxiliary switch (3a4b), which indicate the 'Run' state of a VCBand is operated by the movement of a VCB frame. (Installed in thebottom of a cradle)

Code plate (Miss insertion prevention) -for E, F class draw-out type onlyTo prevent the insert a VCB to a cradle, when the ratings of VCB andcradle are different.

PadlockTo prevent the insert draw-in/out handle to a screw hole by operatingG class VCB temporarily

Note) #11, 21 are Early b contact

Note) #11, 21 are Early b contact

Vacuum Circuit BreakerAccessories

H1-52

Dimension

Connection diagram

Standard tool

When the control power is off, theCTD supply the power for trippinga VCB.

Capacitor trip device (CTD)

When the DC power is not available, rectify the AC power andget the DC power for closing coil.

Rectifier

Optional accessories

Manual charging handleHandle for charging the spring manually.(Standard feature)

Handle for draw-in and outHandle for draw-in and out the VCB(Standard feature in the draw-out type)

E, F class G class

Ratings SpecificationType CB-T1 CB-T2

Rated input voltage AC100/110V AC200/220VFreguency (Hz) 50/60 50/60Charging volt(V) 140/155 280/310Charging time Within 10 Sec. after the AC power offTripping time Within 30 Sec. after the AC power off

Allowable Input 85% ~ 100% 85% ~ 110%voltage range

Capacitor rating(F) 1000 560

Type AC Input voltage Output current Rating time

VCB-X 1 100/110V 40A DC 10 sec.1 200/220V

+

- ~ ~

150

80 40

29.570

100

25

Dimension

Connection diagram CDT

H1-53

Types and ordering information

B Position Switch (RUN/TEST:2a2a)C1 Button Padlock (ON) C2 Button Padlock (OFF)C3 Button Padlock (ON/OFF) D1 Button Cover (ON)D2 Button Cover (OFF) D3 Button Cover (ON/OFF)E

Button padlock (ON)+ Button cover (OFF)

FButton padlock (OFF)+ Button cover (ON)

G Key Lock

HSecondary Trip Coil(Preparatory trip coil)

J Fire-endurable wiring cable assyK Opening Latch Checking SwitchP1 Dummy VCB(AMP Jack)P2 Dummy VCB(Phoenix Jack)Q Earthing Truck(Lower terminal earthing)R Earthing Truck(Upper terminal earthing)S Pad Lock (G class)T Enclosed type, Tulip contact Note4)

N CTD(Capacitor Trip Device)O Rectifier

Cradle

7.2kV & 24kV

Note) 1. 12.5kA, 16kA and 25kA are available at 24kV class.2. Version E is available only at 24kV G class and its distance between phases is 210mm.3. "00" is used for ordering Earthing Truck and Dummy VCB4. Accessory only for versions D and E5. 1F,1H and 1T are only available at 24kV class

Note) 1. 12.5kA, 16kA and 25kA are available at 24kV class.2. Version E is available only at 24kV G class and its distance between phases is 210mm.3. Versions A, B and C are available only at G class VCB.

Note3)

Note2)

Note3)

Note3)

Note3)

Note5)

Note2)

LS VCB

Rated voltage06 7.2kV20 24kV

Installation methodP Fixed typeE E class draw-out typeF F class draw-out typeG G class draw-out type

M G class draw-out type+ Bushing

Revision No.D Pro-MEC

E Pro-MEC(Minimized type)

Control voltage00 -1A DC110V1B DC220V1C DC48V1E DC125V

1FAC220(M),DC110(TC)

1HAC220(M),DC220(TC)

1TAC110(M),DC110(TC)

Rated current04 400A06 630A12 1250A20 2000A30 3150A

Breaking current Note1)8 8kA13 12.5kA16 16kA20 20kA25 25kA32 31.5kA40 40kA

Auxiliary switch00 -2B 4a4b(A type connector)2E 10a10b(A type connector)2G 4a4b(B type connector)2H 10a10b(B type connector)

Accessories

Option

LS Cradle Installation methodE E class draw-out typeF F class draw-out typeG G class draw-out type

AccessoriesA MOS(3a4b)+ TOC(3a4b)B Earthing Switch

CEarthing Switch Position Switch+Earthing Switch Locking coil

T Enclosed type, Tulip contact

PS Position S/W Block(24kV E/F class only)

Revision No.A ConventionalD Pro-MEC

EPro-MEC

(Minimized type)

Breaking current Note1)8 8kA13 12.5kA16 16kA20 20kA25 25kA32 31.5kA40 40kA


Rated voltage06 7.2kV20 24kV

20 G 13 D 06 1A 2B B, C, DLVB

20 G 13 D 06 A, B, CLCL

Cradle

12kV

LS VCB

Rated voltage12 12kV

Installation methodG G class draw-out type

MG class draw-out type+ Bushing


Rated current06 630A12 1250A20 2000A30 3150A

Breaking current25 25kA32 31.5kA40 40kA

Breaking current25 25kA32 31.5kA40 40kA

Auxiliary switch2B 4a4b(A type connector)2E 10a10b(A type connector)2G 4a4b(B type connector)2H 10a10b(B type connector)

LS Cradle Installation method

GG class draw-out type

Rated current06 630A12 1250A20 2000A30 3000A


Rated voltage12 12kV

Control voltage1A DC110V1B DC220V1C DC48V1E DC125V

AccessoriesB Position Switch (RUN/TEST:2a2a)C1 Button Padlock (ON) C2 Button Padlock (OFF)C3 Button Padlock (ON/OFF) D1 Button Cover (ON)D2 Button Cover (OFF) D3 Button Cover (ON/OFF)E Button padlock (ON)+ Button cover (OFF)F Button padlock (OFF)+ Button cover (ON)G Key Lock H Secondary Trip Coil(Preparatory trip coil)J Fire-endurable wiring cable assyK Opening Latch Checking SwitchS Pad Lock (G class)T Enclosed type, Tulip contact

AccessoriesT Enclosed type, Tulip contact

12 G 25 D 06 1A 2B B, C1, D1LVB

12 G 25 D 06 A, B, CLCL

Vacuum Circuit BreakerTypes and ordering information

H1-54

H1-55

Vacuum Circuit BreakerTypes and ordering information

Cradle

17.5kV

LS Cradle

Rated voltage17 17.5kV

Installation methodP Fixed typeE E class draw-out typeF F class draw-out typeG G class draw-out type



Breaking current25 25kA40 40kA

Auxiliary switch2B 4a4b(A type connector)2E 10a10b(A type connector)2G 4a4b(B type connector)2H 10a10b(B type connector)

LS VCB


Note) A is for G class only

AccessoriesA MOC (3a4b) + TOC (3a4b)

B Position Switch (RUN/TEST:2a2a)C1 Button Padlock (ON) C2 Button Padlock (OFF)C3 Button Padlock (ON/OFF) D1 Button Cover (ON)D2 Button Cover (OFF) D3 Button Cover (ON/OFF)E Button padlock (ON) + Button cover (OFF)F Button padlock (OFF) + Button cover (ON)G Key Lock H Secondary Trip Coil(Preparatory trip coil)K Opening Latch Checking SwitchS Pad Lock (G class)J Fire-endurable wiring cable assy

AccessoriesRated current

06 630A12 1250A20 2000A25 2500A30 3150A

Installation methodE E class draw-out typeF F class draw-out typeG G class draw-out type

Breaking current25 25kA40 40kA



17 G 25 D 06 1A 2B B, C1, D1LVB

17 G 25 D 06 A, B, CLCL

H1-56

Vacuum InterrupterFeatures & Ordering information

FeaturesSmall Size and Light Weight High performance, reliability, and

long life are assured.

Maintains High Vacuum High-alumina ceramics provide

superior mechanical strength and

easy degassing.

High speed interruption and shortarcing time.

The LS Vacuum Interrupter canmeet all IEC, ANSI and NEMA

performance standards.

Ordering Information

Basic type

L LSV Vacuum

Rated voltage

07 7.2kV/ 12kV

10 15kV24 24kV

Rated shortcircuit current04 4.5kA08 8kA12 12.5kA16 16kA20 20kA25 25kA31 31.5kA40 40kA50 50kA

Ampere

0 Below630A1 1250A2 2000A3 3150A

Revision No.

LV 07 08 0 A

H1-57

Structure

The internal components of a typical Vacuum Interrupter are shown in Figure1. LS Vacuum Interrupter consists of a ceramic insulator, two end plates, arc shield,bellows, a movable and fixed electrode, and contact set. The ambient gas pressure within the evacuated tube is approximately 10-6 torr.

Figure 1. Vacuum Interrupter Schematic

Movable Electrode

Movable End Plate

Bellows

Bellows Shield

Ceramic

Arc Shield

Contacts

End Shield

Fixed End Header

Fixed Electrode

H1-58

Vacuum InterrupterOperating characteristics

Current path

Driving force onthe high currentARC

ARC

Figure 2. Current flow and driving forceon arc for spiral contact

In the closed position, normal current flows throughthe interrupter. When a fault occurs and interruptionis required, the contacts are quickly separated. The arc drawn between the surfaces of contacts israpidly moved around the slotted contact surfaceby self induced magnetic effects, preventing grosscontact erosion and the formation of hot spot onthe surface. The arc burns in an ionized metal vapor, whichcondenses on the surrounding metal shield. Atcurrent zero the arc extinguishes and vaporproduction ceases. The metal vapor plasma is very rapidly dispersed,cooled, recombined, and deionized, and the metalvapor products are quickly condensed so that thecontacts withstand the transient recovery voltage.

() Weld() Bridge explosion

() Contact jets() Shield involvement

() Arc instability() Interruption

Current zero

Recoveryvoltage

Voltage Phenomena() Arc reignition() Restrikes() B. I. L() AC voltage

withstand

Arc initiationHigh current arc mode

Fault current

Time (ms) Time ()

Figure 3. AC arcing and interruption phenomena in vacuum.

H1-59

Ratings and Specifications

Type LV-07040A LV-07080A LV-07130A LV-07251B

Electr

ical ra

tings

Mech

anica

l data

Mech

anica

l requ

ireme

nts

Rated voltage (kV)Rated power frequency withstand voltage (kV, rms)Rated impulse withstand voltage (kV, crest)Rated frequency (Hz)Rated normal current (Amp)Rated short circuit current (Sym.) (kA)Rated short circuit making current (kA, peak)Rated duration of short-circuit (sec)Interrupter weight (kg)Moving part weight (kg)Outline dimension (mm) a

b

c

Contact stroke (mm)Opening speed, average 0 to 75% of full stroke (m/s)Overtravel during opening, Max. (mm)Closing speed, average last 33% of full stroke (m/s)Contact bounce duration, Max. (sec)Added force from atmospheric pressure (kgf)Contact force from atmospheric pressure (kgf)Contact erosion limit (mm)Mechanical life (104, Operations)

3.6 7.2 7.2 7.2 7.2

11.5 20 20 20 20

60 60 60 60

50/60 50/60 50/60 50/60

400 630 630 1,250

4.5 8 12.5 20 25

- 20.8 32.5 52 65

- 3 3 3

0.48 0.83 0.85 1.8

0.19 0.4 0.4 0.6

114 132 132 190

78 92 92 123

62 62 62 79

3 5 6 6 8

0.6 0.7~1.0 0.7~1.0 0.7~1.0

1 2 2 2

0.3 0.7~1.0 0.7~1.0 0.7~1.0

0.002 0.002 0.002 0.002

5 50 80 154 227

9 9.1 9.1 15.9

1 3 3 3

100 3 3 3

Outer view

H1-60

Vacuum InterrupterRatings and Specifications

Type LV-07251 LV-10252 LV-10312 LV-10403

Electr

ical ra

tings

Mech

anica

l data

Mech

anica

l requ

ireme

nts

Rated voltage (kV)Rated power frequency withstand voltage (kV, rms)Rated impulse withstand voltage (kV, crest)Rated frequency (Hz)Rated normal current (Amp)Rated short circuit current (Sym.) (kA)Rated short circuit making current (kA, peak)Rated duration of short-circuit (sec)Interrupter weight (kg)Moving part weight (kg)Outline dimension (mm) a

b

c

Contact stroke (mm)Opening speed, average 0 to 75% of full stroke (m/s)Overtravel during opening, Max. (mm)Closing speed, average last 33% of full stroke (m/s)Contact bounce duration, Max. (sec)Added force from atmospheric pressure (kgf)Contact force from atmospheric pressure (kgf)Contact erosion limit (mm)Mechanical life (104, Operations)

12 15 7.2 12 15 17.5 7.2 12 15 17.5

28 36 20 28 36 50 20 28 36 50

95 60 95 95 60 95

50/60 50/60 50/60 50/60

1,250 2,000 2,000 3,150

25 20 25/31.5 25 31.5 40

65 52 65/81.9 81.9 104

3 3 3 3

1.9 4.1 4.3 6.4

0.7 0.84 0.9 1.7

209 230 230 257(272)169 181 181 213

79 103 108 135

8 12 8 10 12 8 12

1.0~1.3 0.7~1.0 1.0~1.3 1.2~1.6 0.7~1.0 1.0 1.2

2 2 1.5 3 3 1.5

0.7~1.0 0.7~1.0 0.7~1.0 0.7~1.0

0.002 0.002 0.002 0.002

227 154 227/306 306 367

15.9 16.8 16.8 25

3 3 3 3

3 1 5 3 1 5 2

Outer view

H1-61

LV-24120 LV-24121A LV-24252A LV-24403 LV-12503 LV-25000

24 24 24 25.8 7.2 24 25.8 4.76 12 25.8

50 50 50 70 20 50 70 19 48 60

125 125 125 150 60 125 150 60 95 125

50/60 50/60 50/60 50/60 50/60 50/60

630 1,250 2,000 3,150 3,150 600

12.5 12.5 16 25 60 40 31.5 50 0.6

32.5 32.5 41.6 65 130 101 81.9 130 32.5

3 3 3 3 3 1

1.7 2.6 5.0 6.4 7.6 0.91

0.4 0.7 1 1.7 2.9 0.36

235 235 270 272 272 212

163 174 225 213 213 145

75 95 108 135 135 62

15 15 17 17 10 9.5

1.0~1.3 1.0~1.3 1.0~1.3 1.0~1.3 1.2~1.5 0.9~1.1

2 2 1.5 1.5 3 1.5

0.7~1.0 0.7~1.0 0.7~1.0 1.0~1.3 0.7~1.0 0.76

0.002 0.002 0.002 0.002 0.002 1.002

80 80 120 227 420 367 306 380 57

9.1 15.9 16.8 25 25 9.1

3 3 3 3 2 2.54

1 1 1 1 2 1

1) 1) 1)

1) Only with additional external insulation

H1-62

Vacuum InterrupterDimensions

LV-07040A LV-07080/LV-07130A LV-07251

LV-07251B LV-10252/LV-10312 LV-10403

Note) LV-10312 108

Note)

H1-63

LV-12503

49.5

LV-24120 LV-24121A

LV-24252A LV-24403 LV-25000

Contents

Features and Structure H2-2Control circuit diagram H2-4Dimensions H2-5

Vacuum Circuit Breaker for MCSG

Pro-MEC MCSG VCB

H2

H2-2

Vacuum Circuit Breaker for MCSGFeatures and Structure

FeaturesModule type VCBConvenient especially for fabricating MCSG

- Housing is designed like VCB compartment style- MCSG panel can be easily constructed if combined with Low voltage compartment, Busbar

compartment and Cable compartment.

Convenient for maintenance and offering high safely- Earthing switch can be operated from outside of the panel, and which makes earthing of 3 phases at the

same time.- Without opening the compartment panel door, breaker can be drawn in or out electrically or manually

Main functions- Breaker : draw- in or out electrically or manually- Compartment : 3-positions

Standard- IEC 62271-100

Name plate Manual closing button Keylock Manual trip button Manual charging hole Contact position

indicator Closing spring

charge indicator Operation counter Insertion &

Draw-out screw Geared Mechanism

Compartment Earthing switch Bushings Shutter

Electricaldrive unit

H2-33

Ratings

Rated voltage (kV) 25.8Rated normal current (A) 630 2000Rated frequency (Hz) 60Rated short-circuit breaking current (kA) 25Rated short-circuit breaking capacity (MVA) 1100Rated short-time withstand current (kA) 25/3sRated short-circuit making current (kA) 65Rated breaking time (Cycles) 3Withstand Power frequency (kV) 50/1minvoltage Impulse (kV/1.250 ) 125TRV rising rate (kV/ ) 0.47TRV max. (kV) 41Rated operating sequence O-0.3s-CO-3min-COMechanical lifetime 10,000operationsElectrical lifetime 10,000operationsRated control voltage (V) DC 110VRated trip voltage( V) DC 110VStandard auxiliary switch 4a4b, 8a8bRated opening time (s) 0.04No-load closing time (s) 0.06Rated charging motor current (A) 7Rated closing coil current (A) 5Rated trip coil current (A) 5Closing spring charging time (s) 12Draw-in/out motor voltage (V) DC 110VDraw-in/out motor current (A) 5Distance between phases (mm) 265Weight (kg) breaker 205 236.5

compartment 281 293Installing GApplied standard IEC 62271-100

LVB25-25/06 LVB25-25/20Type


Installation methodG Gclass draw-out

Auxiliary switch2G 4a4b(B type connector)2H 8a8b(B type connector)

Breaker

25 G 25 I 06 1A 2B B,C,DLVB

CCrraaddllee((CCoommppaarrttmmeenntt))

LS VCB

Breaking current25 25kA

Version

Rated current06 630A20 2000A

AccessoriesB Position SwitchC1 Button Padlock(ON) C2 Button Padlock(OFF)C3 Button Padlock(ON/OFF) D1 Button Cover(ON)D2 Button Cover(OFF) D3 Button Cover(ON/OFF)E Button Padlock(ON)+Button Cover(OFF)F Button Padlock(OFF)+Button Cover(ON)G Key Lock H Secondary Trip Coil


LS VCB

25 C 13 D 06 A,B,CLCL

Version Rated current06 630A20 2000A


Installation methodC Bushing

AccessoriesB Earthing SwitchE Door

Control voltage1A DC110V1B DC220V1C DC48V1E DC125V1F AC220(M), DC110(TC)1H AC220(M), DC220(TC)1T AC110(M), DC110(TC)

H2-4

Vacuum Circuit Breaker for MCSGControl circuit diagram

MOTOR POWER SOURCE

A1 A2

P NN

N

M

CA3 A4CS

TRIP POWER SOURCE

CLOSING POWER SOURCE

A5 A6CS

CW ()

CCW

()

PP

PAu

xilia

ry s

witc

h

Posi

tion

S/W

Indi

catio

n fo

r clo

sing

spr

ing

"cha

rged

" is

avai

labl

e.

913

14 4389

X44

1LS

62

3452

b35

3389

Y34

3389

X34

652

a

6'

4389

Y89

X89

Y44

2189

Y22

1516

1722

2426

2840

4244

46

2325

2729

4143

4547

2325

2729

4143

4547

3638

5052

5456

5870

13

1PS

1PS

23

24

24

3638

5052

5456

5870

3739

5153

5557

5971

3739

5153

5557

5971

2224

2628

4042

4446

13 14

13 14

10

1D C B A

D C B A

23

41

23

4

5051

5253

5

1314

1516

17

67

89

109

1011

1213

1415

16

3637

3839

12

34

56

A1A2

A3A4

A5A6

78

910

1112

1314

2223 ( 4

a 4b )

( 8a 8

b )SE

COND

ARY

DISC

ONN

ECT

WIR

ING

( TOP

VIE

W )

2425

2627

2829

1516

1D C B A

D C B A

23

41

23

4

5051

5253

5

1314

1516

17

67

89

109

1011

12

5455

5657

5859

70

4243

4445

4647

71

1314

1516

3637

3839

4041

12

34

56

A1A2

A3A4

A5A6

78

910

1112

1314

2223

2425

2627

2829

1516

4 5Yb

Ya

52b

LS1

63 4

7 8

343

64

2121 1 5 1 230 31

LS2

LS3

TC1 2

89X

8 9

1LS

52 21

89X

22 89Y8 9

89M

4a4b

8a8b

1 2

Y

Run

Test

: E

xtern

al te

rmina

l of V

CB52

: Vac

uum

circ

uit b

reak

erM

: Spr

ing ch

argin

g moto

rTC

: Trip

coil

TC1

: Sec

onda

ry trip

coil

C: C

losing

coil

Y: A

nti-p

ump r

elay

52a

: Aux

iliary

switc

h (N

O)52

b: A

uxilia

ry sw

itch

(NC)

LS1

: Clos

ing in

terloc

k lim

it swi

tch(on

ly withd

rawab

le typ

e)LS

2: M

otor

stop

ping,

closin

g spr

ing ch

arge

d ind

icatio

nLS

3: A

nti-c

losing

, Anti

-pum

ping l

imit s

witch

LS5

: "Of

f" at

Test

Posit

ionLS

6: "

Off"

at Ru

n Pos

ition

PS1 :

Pos

ition S

/W("O

n" at

Test P

ositio

n)PS

2 : P

ositio

n S/W

("On"

at Ru

n Pos

ition)

89X

: Aux

iliary

Rela

y for

Inse

rting

89Y

: Aux

iliary

Rela

y for

with

draw

ing89

M : M

otor

for w

ithdr

awing

and I

nser

ting

Note.

Diag

ram sh

ows t

he ci

rcuit b

reake

r in po

sition

OFF

with

clos

ing sp

ring

Charg

ed

H2-5

Dimensions10

82

1365

7010

375

A

A

35

53 538941000

15.4

265 265

(183.4

)

(212.4

)

963553 1

95

652.

4

183.

4

1365

340

372.

6

26.8

st:31010

263.8180Lead wire(2m)

293.8

410

B B

C

1

TEST RUN

Earthing

45

3086

3060

60

8634

0

45 95

9681000

425

425

190

265 265175

425

2-13

(Earthing)6.5

3-10

5012

8

844

700

265

205

600

50

20

41065

513 16.8370 40

340 40 483963

50

950 1

7510

3

15 933 (15)

700

3-11(Mounting Hole)

3-1122(Mounting Hole)

20-M8 POP NUT(DP:18)

User Bus

Cradle(Compartment) - w/o Earthing Switch

630A

2000A

265 265

860 350 50

445

445

481785

886912

1013

340

340

608

G type breaker + track(electric draw-in/out)

RearFront

Top

H2-6

Vacuum Circuit Breaker for MCSGDimensions

2525

600

1717

8383

340

2626

20

340 40 483 50 70

700

950

50

100 100763

140 150

1565 19

9-11Mounting Hole

50

370 40 16.8513

20-M8 POP NUT(DP:18)

2-1360

60

26

26

A

(Door)**Option

1750

125

500

500

767.

424

434

039

8.6

4541

5

190

454

415

415

415

45

500

125

A

Test B

1000 39 963 320.935

16-10(Mounting Hole Side) 10-M8 POP NUT(DP:18)

25t(2000A)10t(630/1250A)

st:310

M12 TAP(DP:24)

3-10

(Earthing)6.5

35

74

36

User Bus

968

265 265

265 265175

(Earthing S/W)**Option

35

Test Run

Test

238.8

Cradle(Compartment) - w/ Earthing Switch

Side RearFront

Top

Contents

Ratings H3-4Ratings of Accessories H3-5Accessories H3-6Control circuit diagram H3-8Dimensions H3-9Types and ordering information H3-14

Vacuum Circuit Breaker for Power Plants

Power Plants VCB

H3

A product developed for water and thermal power plants dueto the revision and application of Kepcos standard (ES150)followed by the IEC standard revision. It has completed thehigh capacity (40~50kA) VCB series for power plants bysecuring higher breaking capacity, safety and reliability.

VCB Full OptionTo prevent fatal error, property and life loss caused from operator duringoperation, it is equipped with safety mechanisms such as shutter padlock.

Bushing applied for Window CT adaptation The bushing provides sufficient strength to collaborate with the internal insulation and isadaptable with CT offering safety mechanically and electrically when applying large current.

H3-2

Power PlantsVacuum Circuit BreakerVacuum Circuit Breaker

Vacuum Circuit Breakersfor Power Plants

It is recognized for reliability by acquiring newIEC 62271-100 and ES150 (KEPCO standardspecification on AC breakers)

H3-3

Vacuum Circuit Breaker for Power PlantsRatings

H3-4

Type LVB-06G-40H LVB-06G-40J LVB-06G-50J

Rated voltage (kV) 7.2Rated normal current (A) 1200 2000 3000 1250 2000 2500 3150 1250 2000 3150Rated frequency (Hz) 60Rated short-circuit breaking current (kA) 40 50Rated short-circuit breaking capacity (MVA) 500 624Rated short-time withstand current (kA/3sec) 40 50Rated short-circuit making current (kAp) 104 130Rated breaking time (Cycle) 3Rated opening time (sec) 0.04No-load closing time (sec) 0.06Withstand Power frequency (kV/min) 20voltage Impulse (kV/1.250 ) 60Rated operating sequence CO-15s-CO O-0.3s-CO-3min-CO

Rated charging motor current (A) 5 (at DC125V) 5 (at DC110V)Rated closing coil current (A) 3 (at DC125V) 3 (at DC110V)Rated shunt coil current (A) 3 (at DC125V) 3 (at DC110V)Type Mechanical M2

test Electrical E2 (Maintenance free) E2 (List1)Capacitive current switching C2

Lifetime Mechanical Without maintenance 10000 operations

Maintenance 20000 operations

Electrical Without maintenance 10000 operations

Maintenance 20000 operations

Auxiliary switch 3a3b

Installing Draw-out G-type Visible, Tulip

Weight Breaker G-type (kg) 200 260 200 260 200 260Cradle G-type (kg) 190 230 190 230 190 230

Applied standard ES150 NOTE) IEC 62271-100

Type test laboratory KERI

Note) ES150: KEPCO's standard in which IEC62271-100 is appliedKERI: Korea Electrotechnology Research Institute

H3-5

Ratings and auxiliary devices

Note) * applied in the VCB of which MOC is operable at the TEST position.

Switch Mechanism MOC TOC

Breaker a b a b a b

CLOSE ON OFF ON OFF ON OFFRUN

OPEN OFF ON OFF ON OFF ON

CLOSE ON OFF ON * OFF * ON OFFTEST

OPEN OFF ON OFF * ON * OFF ON

Position of the Auxiliary switch

Motor

Closing Coil (C)When the rated volt is applied to the coil the breaker is closed.The electrical anti-pumping circuit is built-in it.

Note) Range of the normal operating voltage: 75~125% of rated voltage

Shunt coil (TC)When the rated volt is applied to the coil the breaker is opened.


Auxiliary switchStandard configuration : 3a3b1b of early-b contact function exists inside



CounterMechanically counts the operation of the VCB by 5digits

Charged Discharged


When the closing spring is charged, the control power of motor is turned off by the built-in limit s/w.


Note) The contact ratings of Mechanical Operated Cell Switch(MOC)are the same with that of the Aux. switch.

The peak value of the Consumption Charging timeRated voltageinrush current (A) Rated current (A) power (W) (Sec.)

DC 110V 20 3 330 12DC 125V 20 3 330 12

Classification Resistive Inductive Contact load (A) load (A) configuration

Contact Ratings DC110V 10 5

3a3b125V 10 5


DC 110V 3DC 125V 3


DC 110V 3DC 125V 3

Classification Resistive Inductive Contact load (A) load (A) configuration

Contact Ratings DC110V 10 5

3a3b125V 10 5

Truck Operated Cell Switch(TOC)

Vacuum Circuit Breaker for Power PlantsAccessories

H3-6

Accessories for breakers

Position padlockIt is located at the screw hole to prevent the draw-in and out of a breakerfrom the present position(Disconnected, Test or Connected)

Mechanical position indicatorIt is located in the lower part of a breaker to check the present position -Disconnected, Test or Connected- easily.

Position interlockThe breaker is locked in each position-Disconnected, Test or Connected,thus it is necessory to release the lock before draw-in or out of a breakerfrom the present position.

Auto connectionWhen the breaker is moved to Test position from Disconnected positionthe connector for control powers is automatically connected. In case ofreverse moving of the breaker the connector is automaticallydisconnected.

Code plateWhen the breaker is inserted to the cradle, if the ratings does not matchwith the cradle, it mechanically prevents the breaker from being insertedinto the cradle.

H3-7

Mechanically operated cell switch (MOC)It is auxiliary switch (6a6b), which indicates the 'ON' or 'OFF' condition of aVCB, and operated when the VCB is in 'Run' state.

Truck operated cell switch (TOC)It is auxiliary switch (6a6b), which indicates the 'Run' state of a VCB and isoperated by the movement of a VCB frame.


Vacuum Circuit Breaker for Power PlantsControl circuit diagram

H3-8

NA2

A4N

A6

MOTOR POWER SOURCE

M

A1

P

8

A3CS

TRIP POWER SOURCE


TC

52a

A5CS

P

N

3a

2322

2524Aux

iliar

y sw

itch

P

Y

2422

54

2523

5559

58 59

58

2726

272654 55

57

56 57

56

3 44 6

1 26 77

C3130511 2 1 2

Ya

Yb 52b

LS1

LS3 3 4

5 6

Early

b

235756

A2 22A1

2725

59585554

B

A4A6 26

24

A5A3 A

17

(FRON

T VI

EW O

F RE

CEPT

ACLE

PLU

G)

2425

SECO

NDAR

Y D

ISCO

NNEC

T W

IRIN

G5

34

21A1

A3

A2A4

22A5

23A6

1314

1615

1211

89

76

10

22

5455

26271819

2120

5658

5759

2324

(12P T

AP P

LUG)

LS2 43

LS4

21

3b

Cell

switc

h in

ser

vice

pos

ition

3130

3534

3736

3938

5150

76

2322

2524

2726

2928

2515

2616

2717

2212

2313

2414

5352 4140

2515

2616

2717

2212

2313

2414A B

Note)

Diag

ram sh

ows th

e circu

it brea

ker in

positi

onOF

Fw

ith cl

osing

sprin

gCh

arged

: E

xterna

l terminal o

f VCB

52: V

acuu

m c

ircuit b

reak

erM

: Spr

ing

charging

motor

TC: T

rip c

oil

C: C

losing

coil

Y: A

nti-pu

mp

relay

52a

: Aux

iliary switc

h (N

O)

52b

: Aux

iliary switc

h (N

C)LS

1: C

losing

interlo

ck limit sw

itch

LS2

: Motor stopp

ing

LS3

: Anti-clos

ing, A

nti-pu

mping

limit sw

itch

LS4

: Motor C

harg

ing

interlo

ck limit sw

itch

H3-9

Dimensions - Breakers

LVB-06G-40H, 40J G class (Visible, Tulip contact)-(1200, 1250, 2000A) (unit : mm)

336

717

745

685.

2

58453

2

686.2

60

10

368.

236

0

722

254254

130

351.

3

815.

2

696

1200/1250/2000A

54(m

ale

cond

ucto

r)SideFront

Top

Vacuum Circuit Breaker for Power PlantsDimensions - Breakers

H3-10

LVB-06G-40H, 40J G class (Visible, Tulip contact)-(2500, 3000, 3150A) (unit : mm)

60

10

686.2

336

130

349.

8

815.

2

360

368.

2

254254

722

685.

2

58453

2

745

717

696

2500/3000/3150A

Heat sink(only for 3150A)

79(m

ale

cond

ucto

r)SideFront

Top

H3-11

LVB-06G-50J G class (Visible, Tulip contact)-(1250, 2000A) (unit : mm)

336

717

745

58453

2

677.2

60

10

368.

236

0

722

254254

130

815.

7

696

Fixed contact

115.5 140

403.

8

341.

3

Moving contact

54(m

ale

cond

ucto

r )

676.

2

SideFront

Top

Vacuum Circuit Breaker for Power PlantsDimensions - Breakers

H3-12

LVB-06G-50J G class (Visible, Tulip contact)-(3150A) (unit : mm)

254 254

815.

7

722

115.5 140

267.

813

6.5

336

360

358.

710

150.

2

445.8

541

677.2

58453

2 676.

2Moving contact Fixed contact

79(m

ale

cond

ucto

r)

696

717

130

341.

8

107

SideFront

Top

H3-13

252

252

37450 24035

374

235.5

150 500 361

Autocon(3a3b)M.O.C(6a6b)

1134

436.5544

338

1038.5T.O.C(6a6b)

644

24035

310

816

776

254

254

360

449.

5

75.815

1.5

59 61(

)10

35

61

175

103.

5

310

79

54

14

8 14(Earthing)

Mounting 6-12

14

8

21

8

218

5036

140 123

140 123

4-M12 DP20

2-M12 DP20

2500/3000/3150A

1200/1250/2000A

Cradles (unit : mm)

Vacuum Circuit Breaker for Power PlantsTypes and ordering information

H3-14

OptionMOC(6a6b)+TOC(6a6b)

A1 MOC active only at RUN positionMOC(6a6b)+TOC(6a6b)

A2 MOC active only at TEST and RUN position

Note) 1.Rated current 2500A is available only at 7.2kV 40kA, IEC version(J)2.Control voltage and Auxiliary switch are not applied to Dummy VCB and Earthing Truck

LS VCB

Cradle

Breaker

LCL 06 G 40 J 12

LS Cradle

Rated voltage

06 7.2kV

Installation method

G G class draw-out

Breaking current40 40kV

50 50kV

Rated current

12 1200/1250A20 2000A

25 2500A

30 3000/3150A

A1, A2


Installation methodG G class draw-out


50 50kA

StandardH ESB150J IEC

Control voltage1A DC110V 1B DC220V1E DC125V

Auxiliary switch2L 3a3b(Autocon)

OptionC1 Button padlock(ON) C2 Button padlock(OFF) C3 Button padlock(ON/OFF) D1 Button Cover(ON) D2 Button Cover(OFF) D3 Button Cover(ON/OFF)

EButton padlock(ON)+Button cover(OFF)

FButton padlock(OFF)+Button cover(ON)

G Key Lock P3 Dummy VCB Q Earthing Truck(lower terminal)R Earthing Truck(upper terminal)

LVB G 40 J 12 1A 2L P3,Q,R06

standardH ESB150J IEC

Rated current

12 1200/1250A 20 2000A 25 2500A 30 3000/3150A

NOTE1)

NOTE2)

Contents

H4

Nuclear Power Plants VCB

Ratings H4-4Ratings of Accessories H4-5Accessories H4-6Control circuit diagram H4-8Dimensions H4-9Types and ordering information H4-11

Vacuum Circuit Breaker for Nuclear Power Plants

H4-2

It was developed for KEPCO nuclear power stations. This breakersatisfies quality, safety measures (secure from earthquake andother environments), and surge protection class complies with1E-CLASS provisions. It is featured with high breakingtechnologies, safety, and reliability by applying our own vacuuminterrupters (50KA) approved by ANSI standard tests.

Nuclear Power PlantsVacuum Circuit BreakerVacuum Circuit Breaker

VCB Full OptionTo prevent fatal error, property andlife loss caused from operatorduring operation, it is equippedwith safety mechanisms such asshutter padlock.

Bushing applied forWindow CT adaptationThe bushing provides sufficientstrength to collaborate with theinternal insulation and is adaptablewith CT offering safety mechanicallyand electrically when applyinglarge current.

Satisfies earthquake andother internal environmentspecifications During the lifespan of power stations (40yrs),it is designed to operate its fundamentalbreaking functions even under the mostsevere conditions like earthquake, which iscritical from safety perspectives. Thesetechnologies proven through tests thatcomply with KEPIC standard and relevantspecifications are to guarantee nuclearreactor safety.

H4-3

Vacuum Circuit Breakersfor Nuclear Power Plants

Vacuum Circuit Breaker for Nuclear Power PlantsRatings

H4-4

Type LVB-05G-50B LVB-15G-40B

Rated voltage (kV) 4.76 15

1200 1200

Rated normal current (A) 2000 2000

3000 -

Rated frequency (Hz) 60 60

Rated short-circuit breaking current (kA) 50 40

Rated short-circuit breaking capacity (MVA) 410 1040

Rated short-time withstand current (kA/3sec) 50 40

Rated short-circuit making current (kA) 130 104

Rated breaking time (Cycle) 3 3

Rated opening time (sec) 0.04 0.04

No-load closing time (sec) 0.06 0.06

Withstand Power frequency (kV/1min) 19 36

voltage Impulse (kV/1.250 ) 60 95

Rated operating sequence 0-0.3s-CO-3min-CO

Rated charging motor current DC 125V (A) 5 5

Rated closing coil current DC 125V (A) 3 3

Rated shunt coil current DC 125V (A) 3 3

LifetimeMechanical(w/o maintenance) 10000 operations 10000

Electrical(w/o maintenance) 10000 operations 10000

Auxiliary switch 5a3b 5a3b

Installing G-type G-type

Weight1200,2000A (kg) 300 300

3000A (kg) 350 -

Applied standard ANSI C37 ANSI C37

Type test laboratory KERI KERI

H4-5

Ratings of Accessories

Note) The contact ratings of Mechanical Operated Cell Switch(MOC)are the same with that of the Aux. switch.

MotorWhen the closing spring is charged, the control power of motor is turned off by the built-in limit s/w.

The peak value of Ratedcurrent(A)Rated voltage

the inrush current (A) Range of the normal Consumption Charging time4.76kV 15kV 4.76kV 15kV operating voltage power (W) (sec)50kA 40kA 50kA 40kA

DC 125V 15 15 5 5 90~140 360 8

Closing Coil (C)When the rated volt is applied to the coil the breaker is closed.The electrical anti-pumping circuit is built-in it.

The peak value of

Rated voltagethe inrush current (A)

Range of the normal4.76kV 15kV operating voltage

50kA 40kA

DC 125V 3 3 90 ~ 140

The peak value of

Rated voltagethe inrush current (A)

Range of the normal4.76kV 15kV operating voltage

50kA 40kA

DC 125V 3 3 70 ~ 140

Auxiliary switchStandard configuration : Reversible 8C(5a3b)and 2c(2b) with early-b contact function

CounterMechanically counts the operation of the VCB by 5digits

Shunt Coil (TC)When the rated volt is applied to the coil the breaker isopened.

Switch Mechanism MOC TOC

Breaker a b a b a b

CLOSE ON OFF ON OFF ON OFFRUN


CLOSE ON OFF ON OFF ON OFFTEST


Position of the Auxiliary switch

Classification Resistive Inductive Contactload(A) load(A) configuration

AC250V 10 5

125V 10 5

Contact Ratings 250V 10 5 8c

DC 125V 10 5

30V 10 5



Charged Discharged


Vacuum Circuit Breaker for Nuclear Power PlantsAccessories

H4-6

Position padlockIt is located at the screw hole to prevent the draw-in and out of a breakerfrom the present position(Disconnected, Test or Connected)

Mechanical position indicatorIt is located in the lower part of a breaker to check the present position -Disconnected, Test or Connected- easily.

Auto connectionWhen the breaker is moved to Test position from Disconnected position theconnector for control powers is automatically connected.In case of reverse moving of the breaker the connector is automaticallydisconnected.

Reversible contact10 auxiliary switches are provided. 8 of them consist of reversible 8c whichcan be changed from a(b) to b(a). Factory composition is 5a3b. And theother 2 switches are supplied as 2b with early-b contact function

Code plateWhen the breaker is inserted to the cradle, if the ratings does not matchwith the cradle, it mechanically prevents the breaker from being insertedinto the cradle.

Auto dischargeIn case the breaker is drawn-out when the closing spring is charged in theposition-Disconnected, Test or Connected, or the breaker is moved toDisconnected position from Test position the closing spring shall beautomatically released.


H4-7

Mechanically operated cell switch (MOC)This 6a6b switch indicates the 'ON' or 'OFF' condition of a VCB and isoperated in the positions of 'Run' and 'Test"..

Truck operated cell switch (TOC)This 6a6b switch indicates the 'Run' state of a VCB and is operated by themovement of a VCB frame.

Accessories for cradles

Vacuum Circuit Breaker for Nuclear Power PlantsControl circuit diagram

H4-8

P NN

N

PP

22 22

LS2

MOTOR POWER SOUREC


TRIP POWER SOURCE

3 4

1 1 5 30 313 4

7

6 6 1 2

81 22

3 4

4 6

5 6

LS3 L

S1

Ya

Yb 52b

52a

3524

3726

3928

5140

5343

5445

5647

58

2334

2536

2738

2950

41

2325

2729

41

5242

5544

5746

59

5557

59

2426

2840

5456

58

Auxil

iary s

witch

early

b

5a3b

A1

M

CY

TC

A2A4

A6

A3A5

CSCS

SECO

NDAR

Y DI

SCON

NECT

W

IRIN

G(FR

ONT V

IEW

OF

RECE

PTAC

LE P

LUG)

13 1A2 A1A3

A522

2426

2840

5456

58

A4A6

2325

2729

4155

5759

23

45

67

89

1011

12

1415

1617

1819

2021

2223

24

: E

xterna

l terminal o

f VCB

52 :

Vacu

um c

ircuit b

reak

erM :

Sprin

g ch

arging

motor

TC :

Trip c

oil

C : C

losing

coil

Y : A

nti-pu

mp

relay

52a

: Aux

iliary switc

h (N

O)

52b

: Aux

iliary switc

h (N

C)LS

1 : C

losing

interlo

ck limit sw

itch

(only

with

draw

able ty

pe)

LS2

: Motor stopp

ing, c

losing

spr

ing

charge

d indica

tion

LS3

: Anti-clos

ing, A

nti-pu

mping

limit sw

itch

Note)

Diag

ram sh

ows th

e circu

it brea

ker in

positi

onOF

Fw

ith cl

osing

sprin

gCh

arged

H4-9

Dimensions

1200/2000A

3000A

722

254 254

722745

109 228 109 228

817

109.5 442.586.5

713

369

360

360

816

Breaker

Vacuum Circuit Breaker for Nuclear Power PlantsDimensions

H4-10

936

254 254

644850

343 137

100

1070

360

449

157

195 630

1020

252213

50

310

203

36

4-M12 DP18

2-M12 DP24

2-M12 DP24

1200/2000A

3000A

Cradle

H4-11

Types and ordering information

Breaker

LVB 05 G 40 B 20 1A 2K

LS VCB


15 15kV

Installation method

G G class draw-outVersion

B Pro-MEC


1

Nuclear class

1 1E class

2 Non 1E class

Nuclear class

1 1E class

2 Non 1E class


50 50kA

Rated current

12 1200A

20 2000A

30 3000A

Auxiliary switch

2K 8c

Cradle

LCL 05 G 40 B 20 1

LS Cradle Installation method

G G class draw-out

Rated current

12 1200A

20 2000A

30 3000A


15 15kV


50 50kA

Version

B Pro-MEC

Note) 1A,1B,1C are only availableat 15kV class

Note)

H4-12

Memo

For your safety, please read user's manual thoroughly before operating.Contact the nearest authorized service facility for examination, repair, or adjustment.Please contact qualified service technician when you need maintenance.

Do not disassemble or repair by yourself!Any maintenance and inspection shall be performed by the personnel having expertise concerned.Safety Instructions

LS Industrial Systems (Middle East) FZE Dubai, U.A.E. Address: LOB 19 JAFZA VIEW TOWER Room 205, Jebel Ali Freezone P.O. Box 114216, Dubai, United Arab Emirates Tel: 971-4-886 5360 Fax: 971-4-886-5361 e-mail: [email protected] LS Industrial Systems Co., Ltd. Dalian, China

Address: No.15, Liaohexi 3-Road, Economic and Technical Development zone, Dalian 116600, ChinaTel: 86-411-8273-7777 Fax: 86-411-8730-7560 e-mail: [email protected] Industrial Systems (Wuxi) Co., Ltd. Wuxi, China

Address: 102-A , National High & New Tech Industrial Development Area, Wuxi, Jiangsu, 214028, P.R.ChinaTel: 86-510-8534-6666 Fax: 86-510-522-4078 e-mail: [email protected] Industrial Systems Co., Ltd. Hanoi, Vietnam

Address: Nguyen Khe - Dong Anh - Ha Noi - Viet NamTel: 84-4-882-0222 Fax: 84-4-882-0220 e-mail: [email protected] Industrial Systems Co., Ltd. Hochiminh , Vietnam

Address: 41 Nguyen Thi Minh Khai Str. Yoco Bldg 4th Floor, Hochiminh City, VietnamTel: 84-8-3822-7941 Fax: 84-8-3822-7942 e-mail: [email protected] Industrial Systems Tokyo Office Tokyo, Japan

Address: 16FL, Higashi-Kan, Akasaka Twin Tower 17-22, 2-chome, Akasaka, Minato-ku Tokyo 107-8470, JapanTel: 81-3-3582-9128 Fax: 81-3-3582-2667 e-mail: [email protected] LS Industrial Systems Shanghai Office Shanghai, China

Address: Room E-G, 12th Floor Huamin Empire Plaza, No.726, West Yan'an Road Shanghai 200050, P.R. ChinaTel: 86-21-5237-9977 (609) Fax: 89-21-5237-7191 e-mail: [email protected] Industrial Systems Beijing Office Beijing, China

Address: B-Tower 17FL.Beijing Global Trade Center B/D. No.36, BeiSanHuanDong-Lu, DongCheng-District,Beijing 100013, P.R. ChinaTel: 86-10-5825-6025,7 Fax: 86-10-5825-6026 e-mail: [email protected] Industrial Systems Guangzhou Office Guangzhou, China

Address: Room 1403,14F,New Poly Tower,2 Zhongshan Liu Road,Guangzhou, P.R. ChinaTel: 86-20-8326-6764 Fax: 86-20-8326-6287 e-mail: [email protected] Industrial Systems Chengdu Office Chengdu, China

Address: 12Floor, Guodong Building, No52 Jindun Road Chengdu, 610041, P.R. ChinaTel: 86-28-8612-9151 Fax: 86-28-8612-9236 e-mail: [email protected] Industrial Systems Qingdao Office Qingdao, China

Address: 7B40,Haixin Guangchang Shenye Building B, No.9, Shandong Road Qingdao 26600, P.R. ChinaTel: 86-532-8501-6568 Fax: 86-532-583-3793 e-mail: [email protected]

HEAD OFFICELS Tower 1026-6, Hogye-dong, Dongan-gu, Anyang-si, Gyeonggi-do 431-848, KoreaTel. (82-2)2034-4870Fax. (82-2)2034-4713

CHEONG-JU PLANTCheong-Ju Plant #1, Song Jung Dong, Hung Duk Ku,Cheong Ju, 361-720, Korea

Global Network

www.lsis.biz

Specifications in this catalog are subject to change without notice due to continuous product development and improvement.

2009. 02 Vacuum Circuit Breakers/Vacuum Interrupter(E) 2008. 11/(02) 2009. 02 Printed in Korea STAFF

2008.11 LS Industrial Systems Co.,Ltd. All rights reserved.

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