AC fault current limiting circuit
Solid state arc suppression device
Hybrid D.C. power controller
Active arc suppression for switching of direct current circuits
Thyristor-switched capacitor apparatus
Fault current interrupter
ApplicationNo. 06/929049 filed on 11/10/1986
US Classes:361/13, Shunt bypass of main switch361/11, Nonlinear impedance361/5, With current sensitive control circuit361/57, Current responsive361/58Impedance insertion
ExaminersPrimary: Pellinen, A. D.
Assistant: Jennings, Derek S.
Attorney, Agent or Firm
International ClassH01H 9/54 (20060101)
AbstractLoad current is diverted from a circuit breaker, when it is opened, through a commutation circuit. The latter has a capacitor, inductance and solid state switch serially connected with the output of a bridge rectifier. The input of the bridge is connected across the breaker. The switch is turned on to discharge the precharged capacitor to form a current pulse, presenting an extremely low resistance across the bridge input and causing load current diversion.