GB3804-2004 《3-63KV AC high voltage load break switch》GB16926-2009 《AC high voltage load break switch-fuse combination apparatus》
Altitude: no more than 1000m; Ambient temperature: -10℃一+40℃; Relative humidity: daily average no more than 95%, monthly average no more than 90%; Earthquake degree: less than 8℃
No. | Item | Unit | Data |
1 | Rated voltage | kV | 24 |
2 | Rated power frequency | Hz | 50 |
3 | Rated current | A | 630 |
4 | Maximum rated current(fuse) | A | 80 |
5 | Rated active load open circuit current, rated closed-loop open circuit current | A | 630 |
6 | Rated short-time withstand current(2s) | kA | 20 |
7 | Rated short circuit making current, rated peak withstand current | kA | 50 |
8 | 1min PF withstand voltage(phase to phase, phase to earth, across open contacts) | kV | 65/79 |
9 | Lightning impluse withstand voltage(peak)(phase to phase, phase to earth, across open contacts) | kV | 125/145 |
10 | Rated cable charging breaking current | A | 16 |
11 | Mechanical life | time | 2000 |
12 | Rated breaking transfer current | A | 1050 |
13 | Rated short circuit breaking current(fuse) | kA | 31.5 |