Home / Outdoor Type High-voltage Circuit Breaker / ZW8-12 Series outdoor high voltage vacuum circuit breaker

ZW8-12 Series outdoor high voltage vacuum circuit breaker

Specification: 10-2000 USD/PIECE
Use Parts: 1 PIECE
Supply Ability: 1000 PIECE
Payment Terms: TT , LC , Others
Tags:
Place Of OriginHangzhou,China

General Description

ZW8-12 Series outdoor high voltage vacuum circuit breaker is main switch equipment of rated voltage 12KV, three phases AC50Hz system, to switch on/off loading current, over-current, and short circuit in rural or urban power network. The structure of breaker is of three-phase assembled in a tank, three-phase vacuum arc-extinguishing chamber enclosed in metal tank, insulation material between phases and phase to each made of SMC, reliable performances, and high insulating strength.

ZW8-12G consists of ZW8-12 breaker and isolator, called combined breaker, can be used as sectionalizer.

The operating mechanism for this series breaker is CT23 spring charging mechanism, motor or hand operating type.

 

Main Technical Parameters

 

Item

Description

Data

1

Rated voltage(KV)

12

2

Max. voltage(KV)

12

3

Rated current(A)

630

4

Rated short circuit load breaking current(KA)

20

5

Rated short circuit making current(peak)(KA)

50

6

Rated peak withstand current(KA)

50

7

Rated 1min withstand current(KA)

20

8

Rated insulation level(KA)

Power frequency withstand voltage(dry)

42

Lightning impulse withstand voltage(peak)

75

9

Rated operating sequence

O-0.3s-CO-180s-CO

10

Mechanical life(times)

10000

11

Nos of breaking rated short circuit breaking current(times)

30

12

Rated close brake voltage of operating machnie(V)

110,220

13

Rated opening brake current of operating machine(V)

110,220

14

Opening distance of current(mm)

11±1

15

Over traveling distance(spring compressed lenght of contact)(mm)

3

16

Asynchrony of opening or closing three phases(ms)

≤2

17

The jump time of contact close break(ms)

≤2

18

Average break speed(s)

1.0±0.2

19

Average closing speed(s)

0.7±0.15

20

Opening time(s)

Ubder max.operating voltage

0.015-0.05

Under min.operating voltage

0.03-0.06

21

Closing time(s)

0.025-0.05

22

Main circuit resistance of each phase(μΩ)

≤120

23

Permissible abraded thickness of moving and static contacts(mm)

3

 

Note:Please contact the factory to confirm the latest parameters

Outline & Installation Size

 

 

 

Note: If user has any special requirement, please negotiate with our factory.

 


Send a message to us

CONTACT US

+86-577-62697170
Liushi Town, Yueqing, Wenzhou, Zhejiang Province.

COMPANY DETAILS

Yueqing Aiso Electric Co.,Ltd. is located in Liushi Town, Yueqing, Wenzhou, Zhejiang Province. Industrial Zone, Liushi town is China's high and low voltage electrical appliances.
Yueqing Aiso Electric Co., Ltd