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ZW32-12 Series Outdoor High Voltage Vacuum Circuit Breaker

ZW32-12 Series Outdoor High Voltage Vacuum Circuit Breaker

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ZW32-12 Type Outdoor High Voltage Vacuum Circuit Breaker

Application

ZW32-12 type outdoor high voltage vacuum circuit breaker is 3-phase AC50/60Hz outdoor power distribution equipment with the rated voltage of 12kV. It is mainly used to break and close the load current, over load current, and short circuit current in the electric power system. It fits to be used to protect and control the circuit in substation, mining and industrial enterprises. And the frequently operation places such as the rural power network. It can also be the section switch of power grid, after adding controller, distribution network automation is available.

Technical parameter

No.

Item

Unit

Value

1

Rated voltage

kV

12

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated short-circuit breaking current

kA

20

5

Rated peak withstand current

kA

50

6

Rated short-time withstand current (4s)

kA

20

7

Rated short circuit close current (peak)

kA

50

8

Mechanical life

times

10000

9

Rated short open circuit current switching frequency

times

30

10

1 min power frequency withstand voltage(wet)(dry) alternate with, on/fracture

kV

42/48

11

Lightning impulse withstand voltage(peak) relative to ground/fracture

kV

75/85

12

Secondary loop 1min power frequency withstand voltage

kV

2

 

 

 


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