Vcb Electrical ,circuit breaker VS1-12 indoor fixed vacuum circuit breaker 12kv(embedded pole)
product detail
VS1-12 indoor fixed vacuum circuit breaker 12kv(embedded pole)
VS1-12 series indoor high voltage solid vacuum circuit breaker adopts solid insulation structure and advanced epoxy solid sealing technology. Vacuum interrupter main conductive loop and insulation support are integrated into a solid-sealed pole for the first time.
The problem of environment tolerance of vacuum circuit breaker is solved successfully, which makes it more widely used.
The integrated solid-sealed pole adopts the self-convection patented ventilation technology, which subtly solves the problem of heat dissipation caused by the solid insulation structure.
It meets the national standard GB 1984-2003 high voltage vacuum circuit breaker, JB3855 1996 3.6-40.5KV indoor AC high voltage vacuum circuit breaker, DL/T403-2000 12kV 40.5KV high voltage vacuum circuit breakers order technical conditions and IEC62271-100:2001 high voltage AC circuit breakers related provisions.
Application environmental condition
- Ambient temperature :-10℃ -+ 40℃
- Ambient humidity: the average daily humidity is not more than 95%; The average monthly humidity is not more than 90%;
- Earthquake intensity: no more than 8 degrees
- Saturated steam pressure: the average pressure of a day should not be more than 2. 2kPa, the average monthly pressure should not exceed 1.8kPa;
- Altitude :1000m(excluding special requirements)
6.Should be installed in a place without fire, no explosion, no serious pollution, no chemical corrosion, no violent vibration.
Technical parameter:
|
NO |
Item |
Units |
Technical parameters |
|||||
|
1 |
Rated voltage |
kV |
12 |
|||||
|
2 |
Maximum working voltage |
kV |
12 |
|||||
|
3 |
Rated current |
A |
630/1250 |
630/1250 |
630/1250/1600 |
|||
|
4 |
Rated short-circuit breaking current |
kA |
20 |
25 |
31.5 |
|||
|
5 |
Rated short circuit closing current |
kA |
50 |
63 |
80 |
|||
|
6 |
Rated peak withstand current |
kA |
50 |
63 |
80 |
|||
|
7 |
4S rated short circuit withstand current |
kA |
20 |
25 |
31.5 |
|||
|
8
|
Rated insulation level |
Power frequency withstand voltage |
kV
|
42(Fracture:48)
|
||||
|
Impact withstand voltage |
75(Fracture:84) |
|||||||
|
9 |
Rated operation sequence |
0-0.3s-Co-180s-Co |
||||||
|
10 |
Mechanical life |
times |
10000 |
|||||
|
11 |
Rated short circuit current breaking times |
times |
50 |
|||||
|
12 |
Operating mechanism rated closing voltage |
V |
AC/DC 110,220 |
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|
13 |
Operating mechanism rated trip voltage |
V |
AC/DC 110,200 |
|||||
|
14 |
Moving contactor travel |
mm |
11±1 |
|||||
|
15 |
Moving contactor over-travel |
mm |
3.5±0.5 |
|||||
|
16 |
Three-phase split and close bounce time |
ms |
≤2 |
|||||
|
17 |
Contact closing bounce time |
ms |
≤2 |
|||||
|
18 |
Average opening speed |
m/s |
1.2±0.2 |
|||||
|
19 |
Average closing speed |
m/s |
0.6±0.2 |
|||||
|
20 |
Opening time |
Under max operation voltage |
s |
≤0.05 |
||||
|
Under min operation voltage |
≤0.08 |
|||||||
|
21 |
Closing time |
S |
0.1 |
|||||
|
22 |
Main loop resistance of each phase |
μΩ |
60 |
50 |
||||
|
23 |
Dynamic and static contacts allow wear cumulative thickness |
mm |
3 |
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