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Outdoor high voltage vacuum circuit breaker ZW27A-12
Outdoor high voltage vacuum circuit breaker ZW27A-12

>Outdoor high voltage vacuum circuit breaker ZW27A-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

ZW27A-12 type oil-free ac high voltage vacuum circuit breaker on outdoor column is a combination of the advantages of the current domestic types of vacuum circuit breaker on the column, absorb the mature experience of Japan Toshiba VSPS type automatic column segment, performance is ahead of the domestic similar products. It is a new generation of vacuum circuit breaker which is in the leading position in this field. It is convenient to install voltage transformer and current transformer inside, and upgrade to intelligent circuit breaker or automatic rec loser when equipped with controller. Circuit breaker can also be equipped with disconnecting switch, its operating mechanism can be spring or permanent magnet operating mechanism. 

The product is applicable to 12kV ac 50HZ three-phase power system, for load current, overload current and short-circuit current. 

The product is manufactured according to GB1984/IEC56 and DL404 standards. 

 

Main technical parameters

No

Item

Unit

Data

1

Rated voltage

kV

12

2

Rated insulation level (altitude: 2000m)

Power frequency voltage of 1 min

dry

kV

42

wet

kV

34

Lightning shock resistance (peak)

kV

75

3

Rated current

A

630,1000, 1250

4

Rated frequency

Hz

50

5

Rated short circuit breaking current

kA

12.5, 16' 20, 25

6

Rated operating sequence

 

0-0.3s-C0-180s-CO

7

Rated number of short circuit breaking current

Times

30

8

Rated short circuit shut-off current (peak)

kA

31.5, 40, 50, 63

9

Rated peak withstand current

kA

31.5, 40, 50, 63

10

Rated short - term withstand current

kA

12.5, 16, 20, 25

11

Full break time

s

<0.125

12

Rated short circuit current duration

s

5

13

Mechanical life

Times

10000

14

Rated operating voltage

V

AC/DC 220 11 O 24

15

Rated current of overcurrent trip

A

5

 

Outline and mounting dimensions

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