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ZW32 Vacuum Circuit Breaker

1. Strong breaking capability.
2. High level of insulation.
3. Long service life time.
4. Good pollution resistance.

Specifications:

Description:

ZW32-12/24 model outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in 12/24kV, 50/60Hz power system. It is applicable for substations, industry and mining,urban and rural electricity power networks, especially for occasions with frequent operation and automatic power distribution network. It accords with the standard of IEC622 71-100 & GB1984: AC high voltage circuit breaker, IEC60694 & GB/T11022:

HV General technical requirement of switch and control apparatus

Features:

1. Strong breaking capability.
2. High level of insulation.
3. Long service life time.
4. Good pollution resistance.

Techincal data:

N0.

Test Item

Unit

Data

1

Rated voltage

kV

12

24

2

Rated current

A

630/1250

630/1250

3

Rated frequency

Hz

50/60

50/60

4

Rated short-time withstand current

kA

25

25

5

Rated short-circuit duration

s

4

4

6

Rated active load breaking current

A

630/1250

630/1250

7

Rated loop breaking current

A

630/1250

630/1250

10

Rated short-circuit making current

kA

50

50

12

power frequency withstand voltage against the earth, between phases

kV rms

40

65

13

power frequency withstand voltage against the isolating distance

kV rms

48

79

14

Lightning impulse withstand voltage against the earth, between phases (peak)

kV

75

125

15

Lightning impulse withstand voltage against the air gap(peak)

kV

85

145

16

Mechanical life

Times

10000

10000

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