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ZW20 outdoor high voltage vacuum circuit breaker

The product is a three-phase AC outdoor high-voltage circuit breaker equipment, three-phase common box structure, using vacuum arc extinguishing, phase SF6 insulation, mainly used in urban and rural overhead power distribution network, load, fault current. The box adopts a mature fully sealed structure, filled with SF6 gas, not affected by the external environment, is a maintenance-free product. The spring operating mechanism adopts direct chain main drive and multi-stage tripping system, which has high reliability. It is suitable for protection and control of substations, industrial and mining enterprises and urban and rural distribution networks, and can realize distribution automation with the combination of longitudinal and HZD300F series feeder terminals.
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Product Parameters

Performance characteristics

(1) Safe and reliable.

(2) good sealing.

(3) high quality insulation.

(4) easy to operate.

(5) "four remote" function.

(6) flexible installation.

 

Technical parameters

Serial Number

Name

Parameters

1

Type or model

Three-phase common box type, ZW □

2

Rated voltage (kV)

12

3

Rated current (A)

630

4

Rated frequency (Hz)

50

5

Rated short-circuit breaking current (kA)

20、25

6

Rated short-time withstand current and duration (kA/s)

20/4、25/4  

7

Rated peak withstand current (kA)

50、63  

8

Rated short-circuit breaking current (kA)

20、25   

9

Rated short-circuit closing current (kA)

50、63   

10

Rated power frequency 1min withstand voltage (kV)

Relative ground/interphase

42

Interfracture

48

11

Rated lightning impulse withstand voltage

Peak (kV)

Relative ground/interphase

75

Interfracture

85

12

1min power frequency withstand voltage of secondary circuit (kV)

2

13

Mechanical stability (times)

10000

14

Rated short-circuit breaking current breaking times (times)

≥ 30 times

15

Temperature rise test current

1.2x630

16

Operating mechanism

Spring/Permanent Magnet

17

Operation mode

Manual/electric

18

Operating voltage

DC24V/110V/220V, AC220V

19

Transport weight (kg)

180

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