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YUEQING ZECHANG IMPORT & EXPORT CO.,LTD 
No.258, Liujiang Rd, Xetra Industrial Zone, Liushi, Wenzhou, Zhejiang, P.R.China
Ph: +86-13868628512
Intl. Busi. Div.: Fax: 0086-577-61723166, Tel: 0086-577-61730688
E-mail: info@xetra.com.cn  

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VCB Panel ZN63(VS1)-12

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Specifications

12kV vacuum circuit breaker
Each poles embedded in expoxy resin
Rated current from 630A to 4000A
Withdrawable or fixed type

12kV Vacuum Circuit Breaker
 

VS1 ( ZN63(VS1)-12)12kV series of indoor MV vacuum circuit breakers are used in the indoor switchgear rated 12 kV, 50(60)Hz. They are suitable for making different types of loads and frequent operation, to protect and control the electric equipments in industrial & mining enterprises, power plants and substations.  

 

The main electric conduction loop of the circuit breaker is casted with epoxy resin by APG technics, embedding its vacuum arc extinguish chamber and main loop as an integration. Thereby, its insulation performs with high strength, the size is small, and the surface of its vacuum arc extinguishing chamber avoids the influence of ambient environment, realizing the maintenance-free purpose.

 

Main features:  

·       small size, 

·       water-condensation proof,

·       high insulation,

·       pollution-proof,

·       low resistance,

·       free maintenance.  

  

Normal Service Condition 

·       Ambient temperature: -15 +40

·       Altitude: ≤1000m

·       Relative humidity: daily average relative humidity ≤ 95%; monthly average relative humidity ≤ 90%

·       Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration.

·       Earthquake intensity ≤ 8 degree

If the service condition differs from the above , the user should consult it with manufacturer.

 

Specification

 

No.

Item

Unit

Parameter

1

  Rated voltage     

kV

12

2

  Rated frequency   

Hz

50/60

3

  Rated short-time power frequency withstand voltage(1 min)

kV

42

4

  Rated lightning impulse withstand voltage

kV

75

5

  Rated current  

A

630

1250

630

1250

1250

1600

2000

12501600

20002500

3150

6

  Rated short-time withstand current

kA

20

25

31.5

40

7

  Rated peak withstand current

kA

50

63

80

100

8

  Rated short-circuit breaking current

kA

20

25

31.5

40

9

  Rated short-circuit making current

kA

50

63

80

100

10

  Rated operating sequence

/

O-0.3s-CO-180s-CO

O-180s-CO-180s-CO40kA

11

  Short-circuit current breaking times

times

274

12

  Rated capacitor bank breaking current

A

630/400

13

  Mechanical endurance

times

10000




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Add: No.281, Weishi Rd,  Yanpan Industrial Zone, Liushi, Wenzhou, Zhejiang, China   Tel: +86-577-61730688    Fax: +86-577-61723166