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location:Return ZN63A(VS1)-12
ZN63A(VS1)-12
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Indoor High Voltage Vacuum Circuit Breaker

ZN63A(VS1)-12


IMG_0007副本.jpg


1.General  Description

ZN63A(VS1)-12 Series of indoor vacuum circuit breaker is used for indo

or 12kVswitchgear, lt is suitable to Control and protect transmission and distribution system such as electric network equipment and industrial & mining industry as their protection and control unit.It can match with KYN28 (GZS1 ).XGN

and GG1-A series of switchgears.The products meet standards of GB 1984-2003.The product is equipped with :VCB truck,isolating truck and Fuss truck etc.

Structural characteristics:

1.This series of VCB is used integrated design for operating mechanism

and VCB body with reasonable,beautiful and compact arrangement.

2.This series of VCB adopted vertical Insulation house against impact due

to different weather,it can effectively prevent VIS against damage by exterior factors.

3.The two different installation unit of Fixed type and withdrawable type

can meet the different requirements for different switchgear.

2.Applying  conditions:

Ambient temperature;-10----+40

Relative humidity:daily average ≤95%,monthly average ≤90%

Seismic intensity ≤8

Saturated vapor pressuredaily average ≤2.2kPamonthly average≤1.8kPa

Altitude:≤1000m;(Not including special requirement

Service environmentshould be avoided fire, explosion risk, serious pollution, chemical corrosion and violent vibration

3.Technical  Specification

No.

Item

Unit

Data

1

Rated voltage

kV

12

2

Rated frequency

Hz

50/60

3

Rated insulation levels

Rated power frequency withstand voltage/1min

kV

42

Rated lighting impulse withstand voltage

kV

75

4

Rated current

A

630

1000

1250

1600

2000

2500

3150

4000*

5

Rated short circuit breaking current

kA

20

20

20






25

25

25

25






Rated short time withstand current(4s)



31.5

31.5

31.5

31.5

31.5





40

40

40

40

40

40








50

6

Rated short circuit making current(peak)

kA

50

50

50






63

60

63

63





Rated withstand current(peak)


80

80

80

80

80





100

100

100

100

100

100








125

7

Rated short circuit breaking times

Times

50,30(40kA and above)

8

Rated duration of short circuit

s

4

9

Rated operating sequence


O-0.3s-CO-180s-CO;O-180s-CO-180s-CO(40kA and above)

10

Mechanical life

Times

30000

11*

Rated single capacitor bank breaking current

A

400

12*

Rated back to back capacitor bank breaking current

A

400

13

Max DC component


50%

Remark:

      1.No.11 &No.12 is offered while user need.

     2.Switchgear should be equipped with forced cooling when rated current is 4000A.

4.Overall drawing










Overall dimensions of ZN63A(VS1)handcart type circuit breaker









Overall dimensions of ZN63A(VS1)fixed type circuit breaker


5.Secondary connection diagram 




Secondary connection diagram of withdrawable type circuit breaker








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