VS-40.5 type indoor high voltage vacuum circuit breaker 1. 40.5kV indoor VCB 2. 3 phase 3. Passed test, ISO
VS-40.5 type indoor high voltage vacuum circuit breaker
VS-40.5 type indoor high voltage vacuum circuit breaker is mainly used for rated voltage of 40.5kV, three-phase AC 50Hz power system, for industrial and mining enterprises, power plants and substation protection and control purposes to do, especially for frequent operations in various places . This product complies with GB11022 "high-voltage switchgear and control equipment standards of common technical requirements", GB1984 "AC High Voltage Circuit Breaker" and IEC56 "high voltage AC circuit breakers" and other standards.
Mainly technical parameters
No | Item | Unit | Parameters | |
1 | Contact distance | mm | 18-20 | |
2 | Over travel | mm | 3-5 | |
3 | Contact cumulative wear thickness allows | mm | 3 | |
4 | Average opening speed | m/s | 1.0-1.5 | |
5 | Average closing speed | m/s | 0.5-0.9 | |
6 | Contact closing spring time | m/s | ≤3 | |
7 | Three phase opening synchronism | m/s | ≤2 | |
8 | Three phase closing synchronism | ms | 1.1±0.2 | |
9 | Leading electrical circuit resistance | υΩ | 1250A | 1600A 2000A |
≤50 | ≤40 | |||
10 | Opening time | ms | ≤60 | |
11 | closing time | ms | ≤90 | |
12 | phases center distance | mm | 300±2 | |
No | Item | Unit | Technical parameters | |||
1 | Rated voltage | KV | 40.5 | |||
2 | Rated current | A | 630. 1250 .1600. 2000 | |||
3 | Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | |
4 | Rated short circuit making current (peak) | KA | 50 | 63 | 80 | |
5 | Rated operating sequence |
| 0-03s-Co-180s-Co | |||
6 | Rated step breaking current | KA | 5 | 6.25 | 8 | |
7 | Rated phase short circuit breaking current | KA | 17.4 | 21.7 | 27.4 | |
8 | Rated short circuit breaking current DC component average | ≤48% | ||||
9 | Rated insulation level | 1min power frequency withstand voltage | KV | 95 | ||
Lightning impulse withstand voltage (peak) | 185 | |||||
10 | Rated capacitor breaking current | 400 | ||||
11 | Rated short circuit duration | A | 4 | |||
12 | Rated short-circuit breaking current breaking times | A | 20 | |||
13 | Breaking time | ms | ≤80 | |||
14 | Mechanical life | Time | 20000 | |||
15 | Weight | kg | 260 | |||
VS-40.5 High voltage circuit breaker
