Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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Rated parameters | Other technical parameters | Power frequency withstand voltage | |||||
The rated voltage | 12kV | Internal arc test | 20kA/0.1sec | 10sec (wet test) | 45kV | ||
Rated current | 630A | Arc suppression medium | SF6Gas | ||||
Rated frequency | 50/60Hz | Insulating medium | SF6Gas | 1min (dry test) | 50kV | ||
Short-time Tolerance Current (RMS) | 20kA/4sec | Creep distance (porcelain casing) | 550mm | ||||
Creep distance (silicone sleeve) | 615mm | 1min (dry test) | 50kV | ||||
Protection grade | 54 | ||||||
Mechanical properties of | Impact pressure (1.2×50μs) | gas pressure | |||||
Closing/opening time | <0.1sec | relatively | 85kV | rated working pressure(kgf/cm2G,at20ºC) | 0.7 | ||
Mechanical stability operation | 10,000 times | Explosion-proof device operating pressure(kgf/cm2G) | 4~6 | ||||
Ambient temperature | -25(-40)~70ºC | Between the fracture | 95kV | minimum operating pressure(kgf/cm2G) | 0.05 | ||
Gas leakage rate(cc/sec) | 1.1×10-7 |