Item | Unit | Switch | Switch-fuse | Vacuum circuit-breaker |
Rated voltage | kV | 11 | 11 | 11 |
Power frequency withstand voltage | kV | 28 | 28 | 28 |
Impulse withstand voltage | kV | 95 | 95 | 95 |
Rated current | A | 630 | 2001) | 200 |
Breaking capacities: | ||||
active load | A | 630 | ||
closed loop | A | 630 | ||
off load cable charging | A | 135 | ||
off load transformer | A | 20 | ||
earth fault | A | 200 | ||
earth fault cable charging | A | 115 | ||
short-circuit breaking current | kA | see 2) | 16 | |
Making capacity | kA | 52.5 | see 2) | 40 |
Short time current 0,5 sec | kA | 16 | ||
Short time current 1 sec | kA | 16 | ||
Short time current 3 sec | kA | 21 |
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