ZW32-24 Outdoor High Voltage Vacuum Circuit Breaker

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Product Introduction  

ZW32-24 outdoor high voltage vacuum circuit breakershort for “circuit breaker”is an outdoor power distribution equipment suitable for three-phase system of rated voltage12KV, AC 50Hz, to open and close the load currentoverload current and short-circuit current in power system. It’s applicable to substations and industrial-mining enterprises, and conditions which need frequent operations, such as in rural nets.

This circuit breaker has characteristics of small volumelight weightanti air condensationfree maintenance etc; it can work in bad weather and pollution environment.


 

Conforms to regulation of:

GBl984AC high-voltage circuit-breakers

GB10222Common technical requirements standard of high voltage switch equipment and control equipment

GB311.1-6insulation coordination of high voltage electric transmission and transformation equipment

GB763Thermal of AC high-voltage equipmentin the long-term work

GB2706Dynamic thermal stability test method of AC high-voltage equipment

GB3309《Mechanical test of high voltage switch equipment in normal temperature

DL/T593Common order technical conditions of high voltage switch equipment

 

Model definition:

ZW32-24

Main technical parameters

No.

Item

Unit

Data

1

Rated voltage

KV

24

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated short-circuit breaking current

KA

20

5

Rated peak withstand current (peak)

KA

50

6

Rated short circuit resistance current

KA

20

7

Rated short-circuit making currentpeak

KA

50

8

Mechanical life

time

10000

9

Breaking time of rated short-circuit breaking current

time

30

10

1 min power frequency withstand voltagebetween poles, pole to earth/between open contacts

KV

65/79

11

Lightning impulse withstand voltage between poles, pole to earth/between open contacts

KV

125/145

12

Secondary loop 1 min power frequency withstand voltage

KV

2

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