Outdoor high voltage vacuum circuit breaker ZW37Z-40.5

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Outdoor high voltage vacuum circuit breaker ZW37Z-40.5
Outdoor high voltage vacuum circuit breaker ZW37Z-40.5

Description

ZW37Z-40.5 series of outdoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker). is the company according to the requirements of the development of China's power grid, the introduction of domestic and foreign advanced technology and developed a new type of outdoor high voltage equipment, applicable to three-phase ac 50 Hz, rated voltage 35 kV power system, as a share the load current, overload current and short circuit current. The product has the characteristics of novel appearance, reasonable design, strong complete set, safe and reliable, simple maintenance, long electrical life and so on. It is an ideal equipment for upgrading 40.5kV outdoor multi-oil circuit breaker, reaching the international advanced level. 

The circuit breaker conforms to the requirements of GB 1984-2003 high-voltage ac circuit breaker, GB/T 11022-1999 common technical requirements of high-voltage switchgear and control equipment standard, OUT 403-2000 12kV-40.5kV high-voltage vacuum circuit breaker ordering technical conditions, OUT 593-1996 common ordering technical guidelines for high-voltage switchgear and I EC60056, etc. 

 

Main technical parameters

Item

Unit

Data

Rated voltage

KV

40.5

Withstand voltage of 1 min power frequency

Dry test (fracture, interphase, to ground)

KV

95

Wet test (ground and outer insulation)

KV

85

Lightning shock resistance (peak)

KV

185

Rated current

A

1250、1600、2000

Rated short circuit breaking current

KA

20、25、31.5

Rated short circuit shut-off current (peak)

KA

50、63、80

Rated operating sequence

 

0-0.3s-C0-180s-CO

Rated short - term withstand current

KA

20、25、31.5

Rated peak withstand current

KA

50、63、80

Rated short - term withstand current duration

S

4

Rated operating voltage

V

220

Rated number of short circuit breaking current

times

20

Full break time

ms

≤80

Mechanical life

times

10000

Weight

Kg

1400

 

Outline and mounting dimensions

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