Indoor AC H.V .Load Break Switch
◆Use
It s used in the ring network、city distribution and industrial equipment of 12kV and three-phase AC 50Hz to control load and short-cicuit.Because the switch with fuse protects transformer etc.more reliably than circuit breaker.it is especially suitable for ring network、double radial distribution and package substation.
Technology Parameter
| Number | Name | Unit | FN25—12D／ T630-20 |
FN25—1 2D／ T100-31.5 |
|
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated current | A | 630 | 100 | |
| 4 | Rated insulating level | 1min power frequency withstand voltage | kV | Arc room break30.to ground and interphase42.isolating break48 | |
| Lighting impulse resisting voltage(peak) | To ground.interphase 75、isolation break 85 | ||||
| 5 | 4S heat-stabling current | kA | 20 | ||
| 6 | Rated machine stabling current(peak) | 50 | |||
| 7 | Rated closed switch-off current | 630 50 | |||
| 8 | Rated power load switch off current | A | 630 | ||
| 9 | Rated cable charging switch off current | 10 | |||
| 10 | Rated transfer current | 2000 | |||
| 11 | Switch-0ff no-load transformer capacity | kva | 1250 1.5 | ||
| 12 | Rated shert-circuit switch-off current | 1.8 31.5 | |||
| 13 | Rated shert-circuit controlly current(peak) | kA | 50 | 80(预期值) Prospesctive value |
|
| 14 | Earth switch rated heat-stabling current(2S)
|
20 | |||
| 15 | Earth switch rated machine stabling current(peak) | 50 | |||
| 16 | on-and-off operating power rated voltage | V | DC220,110 AC220,110 | ||
| 17 | Mechanical life(load switch/earth switch) | 次(Times) | 10000／2000 | ||
◆ Appearance diagram
◆ Appearance diagram
