LW36A-145 145kV 132kV High voltage 3 pole Outdoor pole mounted SF6 Circuit Breaker
145kV SF6 circuit breaker adopts three phase porcelain knob construction, outdoor design.
No. | Item | Unit | Parameter | |
1 | Rated voltage |
kV | 132/145 | |
2 | Rated power frequency withstand voltage(1min) | to ground | 230/275 | |
between fracture | 265/275 | |||
3 | Rated lightning impulse withstand voltage | to ground | 550/650 | |
between fracture | 630/650 | |||
4 | The power frequency withstand voltage when gas SF6 is zero pressure(5min) | 95 | ||
5 | Rated frequency | Hz | 50 | |
6 | Rated current | A | 3150 | |
7 | First pole to clear factor |
| 1.5 | |
8 | Rated short circuit breaking current |
kA | 40/31.5 | |
9 | Rated short circuit making current | 100/80 | ||
10 | Rated short time withstand current | 40/31.5 | ||
11 | Rated peak withstand current | 100/80 | ||
12 | Rated short circuit continuous time | s | 4 | |
13 | Rated out of synchronism breaking current | kA
| 10 | |
14 | Short line fault breaking current | 36,30 | ||
15 | Rated line charge breaking current | A | 31.5 | |
16 | Rated operating sequence |
| O-0.3s-CO-180s-CO | |
17 | Switch off time | ms | 30±3 | |
18 | Switch on time | 75±8 | ||
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