| 摘要 |
This electric circuit breaker comprises a main switch and two shunting paths respectively paralleling said main switch, each shunting path containing the series combination of an isolating switch and a diode assembly. The diode assemblies are connected in inverse-parallel relationship with each other. All of the switches are closed when the circuit breaker is closed, and during this interval substantially all current through the circuit breaker is through the main switch. During a circuit-interrupting operation, the three switches are opened. First, the main switch is opened to divert current into one of the shunting paths, and then the isolating switches are opened to complete the interrupting operation with assistance from the diode assemblies.
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