High Voltage Isolation Switch

High Voltage Isolation Switch

High voltage isolation switch is a three-phase AC switching device for 50 to 60HZ. It is used for breaking circuit in the power system with the maximum voltage of 40.5Kv 72.5Kv or 126Kv....

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High Voltage Isolation Switch 

Description

High voltage isolation switch is a three-phase AC switching device for 50 to 60HZ. It is used for breaking circuit in the power system with the maximum voltage of 40.5Kv 72.5Kv or 126Kv. 

Technical Specification

Item

Unit system

Data

Rated voltage

KV

40.5

72.5

126

Rated insulation level

1min Power frequency    withstand voltage

Ground

KV

95

140

230

Fracture

KV

115

160

245

Rated lightning impulse withstand voltage (peak)

Ground

KV

185

325

550

Fracture

KV

215

375

630

Rated frequency

Hz

50

Rated current

A

400 630 1000 1250 1600 2000 3150  4000

Rated short-time withstand current

KA

20 20 31.5 31.5 40 40 50 50

Rated peak withstand current

KA

40 50 63  80 100 100 125 125

Rated short circuit duration Main knife/Ground knife

S

4/2

Rated terminal mechanical load

Horizontal longitudinal load

N

750

1000

Horizontal lateral load

N

500

750

Vertical force

N

750

1000

Creepage distance

mm

1025-1250

1800-2250

3150-3900

Mechanical life

Times

2000

Human operators

Without grounding

 

CS11(F)

Single ground

 

CS8-6D(F)

Single ground

 

Main knife CS14G(F);Ground knife CS11(F)

Control circuit voltage

V

AC220,DC110,DC220

Motor operating mechanism

model

 

CJ6

Motor voltage

V

AC380

Control circuit voltage

V

AC220,AC380,DC220

opening closing time

S

6±1

Product weight

Ungrounded

Kg

360

500

700

Single ground

Kg

410

600

800

Double ground

Kg

460

700

900

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