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Outdoor high voltage vacuum circuit breaker ZW43A-12
Outdoor high voltage vacuum circuit breaker ZW43A-12
Outdoor high voltage vacuum circuit breaker ZW43A-12

>Outdoor high voltage vacuum circuit breaker ZW43A-12

Categories
High Voltage Vacuum Circuit Breaker
MOQ
5
Brand
Johsun
FOB port
Shanghai,Ningbo
Terms of Payment
Western Union,T/T,Paypal
Deliverytime
15 working days

Description

ZW43A-12 series outdoor high-voltage vacuum circuit breakers are outdoor high-voltage switchgear with rated voltage of 12kV and three-phase ac of 50Hz. It is mainly used for load current, overload current and short circuit current of power system. It is suitable for substation, industrial and mining enterprises and urban and rural distribution network for protection and control, especially for the frequent operation of the site and the city network automation distribution network. Meet thefollowing standards: GB/T1984 high voltage ac circuit breaker, GB/T11022 common technical requirements for high voltage switchgear and control equipment, D1402 ac high-voltage circuit breaker ordering technical conditions ..... .

The circuit breaker can be matched with the controller into a coincidence device to achieve remote control, telemetry, remote communication, remote adjustment 'four' function. 

 

Main technical parameters

 

Item

Unit

Data

Rated voltage

kV

12

Power frequency withstand voltage of 1 min (interelectrode, to ground/fracture)

kV

dry 42/wet 34

Lightning shock resistance (pole to ground)

kV

75

Lightning impact pressure (fracture)

kV

85

Rated frequency

Hz

50

Rated current

A

630

Rated short - term withstand current and duration

kA/4S

20

Rated short circuit breaking current

kA

20

Rated short circuit shut-off current

kA

50

Rated peak withstand current

kA

50

Rated operating sequence

/

0-0.3s-C0-180s-CO

Rated number of short circuit current breaking

Times

30

Mechanical life

Times

30000

Accumulative wear thickness of contact

mm

3

Weight

kg

70

 

 

 

Outline and mounting dimensions

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