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 IEC60298, GB3906-2006, GB/T 11022-1999, DL/T 593-2006, GB 1984-2003 standards, etc.
 Major Technical Parameters are shown below:

Rated voltage	12kV
Rated current	630/1250A
Rated frequency	50Hz
Rated short-duration (1 min) power frequency withstand voltage	42kV
Rated short-circuit breaking current	20kA
Rated short-duration withstand current (4s)	20kA
Rated lightning impluse withstand voltage	75kV
Rated short-circuit making current (peak value)	50kA
Rated peak withstand current	50kA
Rated short-circuit current drop-out times	30 Times
Mechanical service life of vacuum circuit breaker	10000 Times
Mechanical service life of disconnectors/ground switch	2000 Times
Protection degree of enclosure	IP4X
Rated operating sequence of circuit breaker	O-0.3s-CO-180s-CO
Rated work power supply	AC/DC 100/220V