China Fast Action Maintenance Free Intelligent Solid Insulated Switchgear

The AVR-12 type intelligent compact solid insulated switchgear is China's first-developed intelligent permanent-magnetic vacuum switchgear developed and 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.
This product conforms to IEC60044-1, IEC60060, IEC60068-2, IEC60099-4, IEC60255-27, IEC60270, IEC60280.1, IEC60529, IEC60694, IEC60815-1, IEC60870-5-101, IEC61000-4, IEC61243-5, IEC62271, standards, etc.
Major Technical Parameters are shown below:

Rated voltage12kVRated current630/1250ARated frequency50HzRated short-duration (1 min) power frequency withstand voltage42kVRated short-circuit breaking current20kARated short-duration withstand current (4s)20kARated lightning impluse withstand voltage75kVRated short-circuit making current (peak value)50kARated peak withstand current50kARated short-circuit current drop-out times30 TimesMechanical service life of vacuum circuit breaker2000 TimesMechanical service life of disconnectors/ground switch2000 TimesProtection degree of enclosureIP4XRated operating sequence of circuit breakerO-0.3s-CO-180s-CORated work power supplyAC/DC 100/220V