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Indoor High Voltage Vacuum Breaker

12kV Indoor Vacuum Breaker

12kV Indoor Vacuum Breaker

Mostly purpose The ZN63A(VS1)-12 series indoor vacuum breaker is used in indoor HV switchgear,being protection and control units of electric networks and power equipments in industrial and mining establishments.It is suitable for some places with frequently operating or repeatedly switching......

Mostly purpose
The ZN63A(VS1)-12 series indoor vacuum breaker is used in indoor HV switchgear,being protection and control units of electric networks and power equipments in industrial and mining establishments.It is suitable for some places with frequently operating or repeatedly switching short current.Using integrative design for operating mechanism and breaker body,it can be a fixed installation unit,or make a cart unit by matching with special chassis.

Technic Parameter 

Item

Unit

Parameter

ZN65-12/T20
ZN63-12/T20

ZN65-12/T25
ZN63-12/T25

ZN65-12/T31.5
ZN63-12/T31.5

ZN65-12/T40
ZN63-12/T40

ZB65-12/T63
ZB63

12/T63

Rated voltage

KV

12

Rated current

A

630
 1000

 1250

1000 1250

1250
1600
  2000
 2500

1250
 1600
  2000
  2500
  3150

400

Rated insulation level

1 min power frequency withstand voltage

KV

42

Lightning impulse withstand voltage

KV

75

Rated short circuit breaking current

KA

20

25

31.5

40

63

Rated short current switching current

(Peak value)

KA

50

63

100(80)

130(100)

160

Rated dynamic current(Peak value)

KA

50

63

100(80)

130(100)

160

Rated thermal arrest current

KA

20

25

31.5

40

63

Breaking current frequency underrated short circuit

Times

50

50

50

30

20

Rated thermal arrest time

S

4

Rated operating sequence


O-0.3s-CO-180s-CO O-180sCO-180sCO

Mechanical life

Times

20000

10000

Single capacitor bank breaking current

A

630


Back to back capacitor bank breaking current

A

400


Rated switch-off time

ms

40±10


Minimum operating voltage switch-off time

ms

65±10


Rated switch-on time

ms

50±10

45±10

Parameters in the  brackets are for SIEMENS, and U.S.Westhomes vacuum explosion chambers.

External & Build in Dimension

图1.jpg

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