China Eco-Friendly Energy Saving Fast Action Intelligent Outdoor Vacuum Circuit Breaker

Eco-Friendly Energy Saving Fast Action Intelligent Outdoor Vacuum Circuit Breaker
The AB-3S-12 Series breakers are recently-developed pole-mounted intelligent vacuum circuit breakers of a new generation, which absorb the advanced domestic and foreign technologies adopted by our company, embody the design concept of being "intelligent, energy-saving, environmentally-friendly and maintenance-free" and comply with the actual conditions of China's power distribution network and the construction requirements of smart grid. These products can be used as switches at the 10kV side of substation and 10kV outgoing line of main transformer as well as pole-mounted switches for power distribution networks. They integrate such functions as measurement, control, protection, communication, fault isolation and network reconfiguration, with high automatic and intelligent degree; they are top choices for equipment of power distribution network automation and miniaturized substations.

Rated voltage12 kVRated current630/1,250 ARated frequency50 HzRated short-duration (1 min) power frequency withstand voltage42/48 kVRated short-circuit breaking current20/25 kARated short-duration withstand current (4s)20/25 kARated lightning impluse withstand voltage(to earth/break)75/85 kVRated short-circuit making current (peak value)50/63 kARated peak withstand current50/63 kARated short-circuit current breaking times30 timesMechanical service life of vacuum circuit breaker10,000 timesCT transformation ratio600/1 or 1,250/1Rated operating sequence of circuit breakerO-0.3s-CO-180s-COTotal weight80+25kg