FIELD: high-voltage devices. SUBSTANCE: high-voltage circuit breaker is made integral with circuit breaker control device, current protection relay and current sensors. Magnetic circuits of each current sensor have two U-shaped parts, one part being arranged on inner high-potential side of dielectric housing of circuit breaker, and other part, on outer low-potential side. Primary windings of each current sensor are formed by corresponding input bus of circuit breaker laid between first part of corresponding magnetic circuit and inner high-potential side of dielectric housing, and secondary windings of each current sensor are wound over second parts of corresponding magnetic circuits. EFFECT: enlarged operating capabilities. 1 dwg
