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VS1 (ZN63A)-12 Indoor AC HV Vacuum Circuit Breaker

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VS1-12 Series Indoor AC HV Vacuum Circuit Breaker is an indoor HV switchgear of three AC 50Hz and rated voltage 12kV. Circuit breaker can be proceeded frequent operation and has many times breaking and rapid reclosure capacity, and has reliable interlock function. The device is front and back split charging structure, not only as a fixed installation unit but also match handcart unit with base plate cart.

1. Much technical advancement


  a. It adopt the latest effect vacuum arc principle, has strong breaking capacity, small volume closure at present.

  b. Extreme high Electrical endurance, breaking rated current time can arrive 20000 times, breaking short-circuit time is 50 times (40kV is 30 times, 50kA is 20 times).


  c. Vacuum arc-extinguishing chamber and operating mechanism arrange front and back. It reduces energy consumption and noise, and operation is much more reliable.

 

  d. Compact structure and small volume.

2. Excellent reliability on operation

 

        a. Every detail considers fully domestic condition and requirements in standards during design.

  b. Every drive disk assemble part is made of high wear-resistant material mainly, and painted with fine lubrication. It can operate for a long time without additional lubrication and adjustment.


  c. Reliable interlock function to prevent various kinds of mis-operation effectively, it is much more safety for body.
  

3. Prominent economy on purchase


  a. Equipment purchased has high performance cost ratio.

  b. Extremely little maintenance cost greatly reduces the operating cost.


  c. Excellent common performance reduces design difficulty of the project.

  d. Steady technology, and without environment pollution。

 

No.

Item

Unit

Parameters

1

Rated Voltage

kV

12

2

Rated Short-time (1min) Power Frequency Withstand Voltage

42/48 (Open gap)

3

Rated Lightning Impulse Withstand Voltage (Peak)

75/85 (Open gap)

4

Rated Frequency

Hz

50

5

Rated Current

A

630
1250

630 1250

1600 2000

2500 3150

1250 1600

2000 2500

3150 

3150

4000

6

Rated Short-circuit Breaking Current

kA

20/25

31.5

40

50

7

Rated Short-time Withstand Current

20/25

31.5

40

50

8

Rated Short-circuit Duration

s

4

9

Rated Peak Withstand Current

kA

50/63

80

100

125

10

Rated Short-circuit Making Current

50/63

80

100

125

11

Secondary Circuit Power Frequency Withstand Current (1min)

V

2000

12

Rated Single/ Back to Back Capacitor Bank Breaking Current

A

630/400 (40kA is 800/400)

13

Rated Capacitor Bank Making Flashy Flow

kA

12.5 (Frequency Not More Than 1000Hz)

14

Opening Time(Rated Voltage)

ms

20~50

15

Closing Time (Rated Voltage)

35~70

16

Mechanical Life

 

Times

20000

10000

18

Rated Short-circuit Current Breaking Times

50

30

20

19

Center Distance Between Phases

mm

150, 210, 275

 

 

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