| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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Description:
VS1-12 indoor permanent magnet high voltage vacuum circuit breaker is indoor switchgear for three-phase AC power system with rated voltage of 50Hz and 12kV. It is used as the protection and control unit for power grid equipment and power equipment of industrial and mining enterprises. Suitable for frequent operation or multiple breaks short circuit currents at rated operating current.
The circuit breaker adopts the integrated design of the operating mechanism and circuit breaker body, which can be used as a fixed installation unit or equipped with a special propulsion mechanism to form a handcar unit.
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Item
|
Description
|
Unit
|
Data
|
|
|
1
|
Rated voltage
|
KV
|
12
|
|
|
2
|
Max. voltage
|
KV
|
12
|
|
|
3
|
Rated current
|
A
|
630/1250/2500
|
|
|
4
|
Rated short circuit breaking current
|
KA
|
20/25/31.5
|
|
|
5
|
Rated short circuit making current
|
KA
|
50/63/80
|
|
|
6
|
Rated peak withstands current
|
KA
|
50/63/80
|
|
|
7
|
4S Rated withstands current
|
KA
|
20/25/31.5
|
|
|
8
|
Rated insulation level |
Power frequency voltage(when losing a circuit)
|
KV
|
Dreaker 65
|
|
Impulse withstand voltage(when losing a circuit)
|
Dreaker 125
|
|||
|
9
|
Rated operating sequence
|
|
OC-0.3s-CO-180S-CO
|
|
|
10
|
Mechanical life
|
Times
|
20000
|
|
|
11
|
Rated short circuit current breaking time
|
Times
|
274
|
|
|
12
|
Rated close brake voltage of operating machine
|
V
|
110,220
|
|
|
13
|
Rated break brake voltage of operating machine
|
V
|
110,220
|
|
|
14
|
Contact stroke
|
mm
|
13±1
|
|
|
15
|
Exceed range(the compressed length of contact spring)
|
mm
|
3.5±0.5
|
|
|
16
|
Different periods of three-phase break and close break
|
ms
|
≤2
|
|
|
17
|
The jump time of contact close break
|
ms
|
≤2
|
|
|
18
|
Average break speed
|
m/s
|
1.1~1.7
|
|
|
19
|
Average closing speed
|
m/s
|
0.6~1.1
|
|
|
20
|
Opening time |
Under max. operating voltage
|
S
|
≤0.05
|
|
Under min. operating voltage
|
≤0.08
|
|||
|
21
|
Closing time
|
s
|
0.1
|
|
|
22
|
Resistance of each phase main loop
|
μΩ
|
630≤50 1250≤45/ 1600-2500≤40
|
|
|
23
|
Contacts limit version
|
mm
|
3
|
|
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