China 12kv Withdrawable Type Indoor High Voltage Vacuum Circuit Breaker, Find details about China High Voltage Vacuum Circuit Breaker, Indoor Vacuum Circuit Breaker from 12kv Withdrawable Type Indoor High Voltage Vacuum Circuit Breaker
S.N | Name | Unit | Data | |||||||
1 | Rated voltage | kV | 12 | |||||||
2 | Rated frequency | Hz | 50 | |||||||
3 | Rated insulation level | Rated power frequency withstand voltage | kV | 42 | ||||||
Rated lighting impulse withstand voltage | kV | 75 | ||||||||
4 | Rated current | A | 630 | 1250 | 1600 | 2000 | 2500 | 3150 | 4000 | |
5 | Rated short circuit breaking current Rated thermal stability current (effective value) | kA | 20 | 20 | ||||||
25 | 25 | 25 | ||||||||
31.5 | 31.5 | 31.5 | 31.5 | |||||||
40 | 40 | 40 | 40 | 40 | 40 | |||||
50 | ||||||||||
6 | Rated short circuit making current Dynamic stability rated current | kA | 50 | 50 | ||||||
63 | 63 | 63 | ||||||||
80 | 80 | 80 | 80 | |||||||
100 | 100 | 100 | 100 | 100 | 100 | |||||
125 | ||||||||||
7 | Breaking operations of rated short circuit breaking current | Cycle | 50,30(above 40kA) | |||||||
8 | Rated short-circuit duration | s | 4 | |||||||
9 | Rated operating sequence | 0-0.3s-CO-180S-CO/0-180s-CO-180s-CO(above 40kA) | ||||||||
10 | Mechanical endurance | Cycle | 30000 | |||||||
11 | Rated breaking current of single capacitor bank | A | 630 | |||||||
12 | Rated breaking current of back to back capacitor bank | A | 400 | |||||||
13 | DC component | 50% |