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ZW7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker

ZW7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker

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ZW7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker
Application

ZW7-40.5 series outdoor high voltage vacuum circuit breaker is used at three phase AC 50Hz, rated voltage is 40.5kV outdoor high voltage electical equipment, attached the spring operator or electromagnetic actuator can be well controlled electric opening and closing can also be Manaul storagee, manually open and close. Design performance meet GB1984-89 <AC high voltage circuit breakers, national standards, and meet the IEC-56 <high voltage AC circuit breakers> ; Intenational Electro-technical Commission standards. ZW7-40.5 series vacuum circuit breaker is mainly used for outdoor 35kV power transmission system control and protection also applies to urban and rural power distribution networks and industrial and mining enterprises in the normal operation and short circuit protection purposes. The overall structure of the insulator pillar product type; built vacuum interrupter type on the case, porcelainvase for the next pillar case.  For frequent operation place.  And has good sealing, anti-aging high pressure, no burning, no explosion, long life, convenient installation and maintenance features.
Technical Parameter

No.

Item

Unit

Value

1

Rated voltage

KV

40.5

2

Rated current

A

1600

3

Rated frequency

Hz

50

4

Rated short-circuit breaking current(valid)

KA

20

25

31.5

5

Rated short-circuit making current(peak)

KA

50

63

80

6

Rated peak withstand current

KA

50

63

80

7

4S Rated short time tolerance current

KA

20

25

31.5

8

1min power frequency withstand voltage（valid）

KV

 

9

Lightning shock pressure

（peak）

KV

185

10

Rated operating sequence

 

Part-0.3S-Jointpoints-180S-Joint points

11

Rated short open circuit current switch frequency

Times

20

12

Operating mechanism rated switching voltage

   Times

10000

13

Weight

      Kg

1000

 

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