INTERLOCKING DEVICE OF ELECTRONIC TYPE HIGH-VOLTAGE BREAKER AND HIGH-VOLTAGE ISOLATION SWITCH

摘要

An interlocking device of an electronic type high-voltage breaker and a high-voltage isolation switch. The interlocking device comprises: a high-voltage breaker body (a) which has an outgoing line terminal of a phase line (d) to connect or disconnect the phase line (d); and a high-voltage isolation switch body (b) which is connected with the high-voltage breaker body (a) and has an incoming line connecting block of the phase line (d). The interlocking device also comprises: a control unit (e) which detects whether current flows through the circuit of the high-voltage breaker body (a) and/or the high-voltage isolation switch body (b) and transmits a control signal indicating a detected state; and an interlocking unit (c) which receives the control signal and generates interference with the state change of the high-voltage isolation switch body (b). Consequently, the high-voltage isolation switch body (b) does not perform connection or disconnection operation when the high-voltage breaker is in ON state.