China Fn12 Indoor AC High Voltage Load Break Switch, Find details about China High Voltage AC Vacuum Load Switch, 12kv AC Vacuum Load Break Switch from Fn12 Indoor AC High Voltage Load Break Switch
Rated Voltage | 12KV |
Rated Current | 630A |
Rate Frequecy | 50Hz |
Power frequency withstand voltage(1min) | arc extinguishing chamber fracture: 30KV phase, to earth: 42KV; isolation fracture: 48KV |
lightning impluse withstand voltage(peak) | Vacuum arc-extinguishing chamber fracture: 60KV phase, to earth: 75KV; fracture: 85KV |
Rated short-time withstand current(Moving reliable current) | 20KA |
Rated short-circuit duration | 4s |
Rated peak withstand current(Moving reliable current) | 50KA |
5% rated active power breaking current | 31.5A |
Rated cable charging current | 10A |
Rated active power load breaking current | 630A |
Rated close-loop breaking current | 630A |
Rated cable breaking no-load transformer capacity | 1600kVA |
Rated short-circuit clsoing current | 50kA |
Earthing switch rated short-time withstand current(thermal reliable current) | 20kA |
Earthing switch rated short-circuit duration | 2s |
Earthing switch thermal reliable current | 20kA |
Earthing switch rated peak withstand current(Moving reliable current) | 50kA |
Auxiliary circle rated voltage | AC,DC 220V/110V |
Mechanism life | 10000 times |
Rated active power load current breaking times | >100 times |
Vacuum extingushing chamber conact admitted wearing thickness | 2mm |