China 38kv Permanent-Magnetic Actuator Vacuum Circuit Breaker Vcb

Power Distribution System 38Kv Permanent-MagnetIC ACTUATOR Vacuum Circuit Breaker VCB
The AB-3S-40.5 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 voltage40.5 kVRated current1,250/1,600/2,000 ARated frequency50 HzRated short-duration (1 min) power frequency withstand voltage95 kVRated short-circuit breaking current25/31.5 kARated short-duration withstand current (4s)25/31.5 kARated lightning impluse withstand voltage(to earth/break)185 kVRated short-circuit making current (peak value)63/80 kARated peak withstand current63/80 kARated short-circuit current breaking times30/20 timesMechanical service life of vacuum circuit breaker10,000 timesCT transformation ratio100-2,000/1 or 200-2,000/5Rated operating sequence of circuit breakerO-0.3s-CO-180s-COTotal weight300+50 kg