专利名称：METHOD FOR INTERRUPTING AN
ELECTRICAL CIRCUIT
发明人：DAVID J. BENARD,PAUL T. NOLDEN,EDWARD
A. MALLONEN,MARK A. CLAYTON
申请号：US09219726申请日：19981222
公开号：US20010015879A1公开日：20010823
摘要：A method for interrupting current is provided wherein substantially all currentis conveyed through a normal current carrying path in a circuit interrupter. A movableelement is displaced for interruption of the current, and a balance is struck between thenormal current carrying path and a parallel alternative or transient current carrying path.The transient current carrying path includes at least one variable or controllableresistance element. The transient current carrying path presents a substantially opencircuit during normal operation. The variable resistance elements have a lower resistanceduring initial phases of circuit interruption, favoring transition of all current from thenormal current carrying path to the transient path. Thereafter, the variable resistanceelements increase in resistivity, producing additional back-EMF to drive the fault currentto a zero level and to limit let-through energy.
申请人：BENARD DAVID J.,NOLDEN PAUL T.,MALLONEN EDWARD A.,CLAYTON MARKA.
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