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VJ12 High Voltage Indoor Vacuum Circuit Breaker 12/24kV
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VJ12 High Voltage Indoor Vacuum Circuit Breaker 12/24kV

    Payment Type: L/C,T/T
    Min. Order: 10 Set/Sets
    Delivery Time: 25 Days
    Packaging: Wooden Base or Carton
    Brand: CHFE
    Place of Origin: Shanghai, China (Mainland)
    Supply Ability: 300 Set/Sets per Month

Basic Info

Model No.: VJ-12

Product Description

Specifications 12kV Vacuum Circuit Breaker

Each poles embedded in expoxy resin

Rated current from 630A to 1600A

Withdrawable or fixed type

12kV vacuum Circuit Breaker
  CHFE 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.     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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