Vacuum circuit breaker CKVB

AChigh-voltagethree-phase

CKVB-12 indoor vacuum circuit breaker is suitable for indoor switchgear of three-phase AC 50Hz, rated voltage 12kV power system. It is suitable for power plants, substations and power distribution rooms in the power system; especially suitable for places requiring frequency operation under rated working current or multiple breaking and closing of short-circuit current. CKVB series indoor high-voltage vacuum circuit breaker can be divided into side-mounted type, formal-mounted type and handcart type according to the installation method; according to the structure, it can be divided into insulating cylinder and solid-sealed pole type. The maximum rated current is up to 4000A. The circuit breaker conforms to GB 1984-2014 "High Voltage AC Circuit Breaker", JB/T 3855-2008 "3.6~40.5kV Indoor AC High Voltage Vacuum Circuit Breaker", DL/T 403-2017 "12kV-40.5kV High Voltage Vacuum Circuit Breaker Ordering" Technical Conditions" and IEC62271-100 and other standards.