10kV 12kV VS1-12 Indoor high voltage fixed type vacuum circuit breaker VCB
Recommended by CCCME
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VS1-12 Indoor high voltage fixed type vacuum circuit breaker is three-phase AC 50Hz, rated voltage of 12KV indoor device. For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place.The circuit breaker has the advantages of long service life, simple maintenance, no pollution, no explosion hazard and low noise, and is suitable for the harsh working conditions such as frequency operation.
Electrical parameters
NO. | Item | Unit | Data | |
1 | Rated voltage | kV | 12 | |
2 | Rated insulation level | 1min Power frequency withstand voltage | 42 | |
Rated lightning impulse withstand voltage | 75 | |||
3 | Rated current | A | 630,1250,2000,3150 | |
4 | Rated short circuit breaking current | kA | 20,25,31.5,40 | |
5 | Rated short-circuit opening and closing current (peak) | 50,63,80,100 | ||
6 | Rated dynamic current (peak) | 50,63,80,100 | ||
7 | Rated thermal stability current (rms) | 20,25,31.5,40 | ||
8 | Rated short circuit current breaking times | time | 50,20 | |
9 | Rated thermal stability time | s | 4 | |
10 | Rated operating sequence | / | O-0.3S-CO-180S-CO | |
11 | Mechanical life | time | 10000 | |
12 | Rated single capacitor bank breaking current | A | 630 | |
13 | Rated back to back capacitor bank breaking current | 400 |