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ZW32 outdoor high voltage vacuum circuit breaker

The product is a three-phase AC outdoor high-voltage circuit breaker equipment, three-phase pillar structure, using vacuum arc extinguishing, interphase air insulation, mainly used in urban and rural overhead power distribution network, split load, fault current. The three-phase pillar adopts imported outdoor silicone insulated pole and APG integral sealing technology, which has stronger insulation performance. One-time sealing and discharging process enables the switch to have more excellent electrical and mechanical properties. Supporting miniaturized spring operating mechanism or permanent magnet mechanism, high reliability; Fully enclosed structure, good sealing performance and good environmental adaptability. This type of vacuum circuit breaker can be upgraded to be used as a recloser or sectionalizer in conjunction with the feeder terminal of the combined longitudinal HZD300F series to monitor the power grid unit of the medium voltage overhead line in real time and realize the management requirements of the power distribution automation system.
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Product Parameters

Performance characteristics

(1) The three-phase pillar structure is adopted, which has the characteristics of stable and reliable breaking performance, no combustion and explosion hazard, maintenance-free, small size, light weight and long life.

(2) The three-phase pillar adopts silicone rubber solid insulation; it improves the insulation performance and anti-pollution, anti-condensation ability, and improves the ozone resistance, anti-ultraviolet, anti-aging ability, and also greatly improves the mechanical strength.

(3) The circuit breaker can adopt a spring operating mechanism, and the opening and closing energy consumption is low; the mechanism transmission adopts a direct drive mode, the opening and closing parts are small, and the reliability is high. The permanent magnet operating mechanism can also be used, which greatly reduces the dispersion and uncontrollability of the action time, has high reliability, can be operated frequently for a long time, and truly achieves permanent maintenance-free.

(4) The circuit breaker box is made of high-quality stainless steel plate, and the surface can be sprayed with plastic protection according to user requirements. It adopts a fully enclosed structure with good sealing performance, which helps to improve moisture resistance, rust resistance, and condensation prevention performance, and improves the performance of the organization. reliability.

(5) "Four remote" function: It can be matched with the controller to realize remote control, telemetry, remote signaling and remote adjustment functions.

 

 

Technical parameters

 

Serial Number

Name

Parameters

1

Type or model

Vacuum circuit breaker

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 life (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

DC24\110\220，AC220

19

Transport weight (kg)

120

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