China 12kv Sf6 Gas Insulated Switchgear Gis Rmu High Voltage

12kv Sf6 Gas Insulated Switchgear Gis Rmu High Voltage
The GIR-12 type intelligent switchgear is manufactured by our company with independent intellectual property rights, which is based on the development demands of smart grid and adopts the design concept of being "intelligent, energy-saving, environmentally-friendly and maintenance-free". It integrates such functions as measurement, control, protection and communication etc, with high intelligent degree. This product is suitable for 50Hz, 12kV electric power systems, extensively applied to industrial and civil cable ring networks and power supply terminal projects; it is a top choice to guarantee safe, reliable, economical and efficient operation of the power network.
IEC60044-1, IEC60060, IEC60068-2, IEC60099-4, IEC60255-27, IEC60270, IEC60280.1, IEC60529, IEC60694, IEC60815-1, IEC60870-5-101, IEC61000-4, IEC61243-5, IEC62271

Rated voltage12 kVRated current630 ARated frequency50 HzRated short-duration (1 min) power frequency withstand voltage42/48 kVRated short-circuit breaking current20 kARated short-duration withstand current (4s)20 kARated lightning impluse withstand voltage(to earth/break)75/85 kVRated short-circuit making current (peak value)50/63 kARated peak withstand current50 kARated load breaking current630 AMechanical service life of vacuum circuit breaker10,000 timesRated close circle breaking current630 A5% rated load open current31.5 ARated transfer current1,700 A