FZW28 12kv outdoor load break switch High Voltage Three Phase
Eberry FZW28 12kv outdoors high voltage three-phase Vacuum Load Break Switch
Overview:
FZW28-12F series outdoor boundary vacuum load switch is suitable for outdoor three-phase AC power distribution system with rated voltage of 12KV and rated frequency of 50Hz, as open and close load current and close short circuit current.
Applicable to substations, industrial and mining enterprises and cities, agricultural networks for protection cities, agricultural network automation distribution network and frequent operations.
The boundary load switch consists of two parts, the FZW28-12 vacuum load switch and the controller, which are electrically connected through an air socket and an outdoor sealed control cable. It can reliably judge the zero-sequence current and the phase-to-phase short-circuit current of the milliampere inside and outside the detection circle, and can be suitable for the distribution system with different neutral grounding methods.
The main technical parameters:
| Sr. | Name | Unit | Value | ||
| 1 | Rated voltage | KV | 12 | ||
|
2 |
Rated insulation level |
1min power frequency withstand voltage |
KV |
Dry test | 42/48 |
| Lightning impulse withstand voltage | Wet test | 34 | |||
| 3 | Rated frequency | Hz | 50 | ||
| 4 | Rated current | A | 63 | ||
| 5 | Rated delay withstand current and duration | KA/4s | 16 | 20 | |
| 6 | Rated peak withstand current | KA | 40 | 50 | |
| 7 | Rated short-circuit breaking current | KA | 40 | 50 | |
| 8 | Mechanical life | Times | 20000 | ||
| 9 | net weight | kg | 198 | ||
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