GN19-12(C) indoor high-voltage isolating switch is used in the AC 50Hz power system with rated voltage of 12kV and with rated current of less than 1250A for closing and opening circuit under the voltage without load. The isolating switch can be equipped with a CS6-1 manual operating mechanism and an optional live display device.
|Model||Rated voltage(kV)||Rated current(A)||Rated peak withstand current (kV)||Rated short time withstand current (kA/4S)||Power frequency withstand voltage for 1 minute (kV)||Lightning impact voltage(kV)|
|GN19-12/400-12.5||12||400||31.5||12.5||Phase-phase voltage, voltage to ground: 42kV; Break Voltage:48||Phase-phase voltage, voltage to ground: 42kV; Break Voltage:48|
Working environment conditions:
1.1 Ambient temperature: Upper limit: +40ºC; Lower limit: -15ºC;
1.2 The altitude does not exceed 1000m.
1.3 For relative air humidity, the daily mean is not greater than 95%, and the monthly mean is not greater than 90%;
1.4 The earthquake intensity does not exceed 8 degrees.
1.5 Installed in places free of fire, explosive risk, chemical corrosion, and violent vibration.
1.6 The installation site shall be free of flammable substance, explosive risk, chemical corrosion and violent vibration.
1.7 Pollution grade: Grade II.
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