US PATENT SUBCLASS 361 / 109
.~ Too large fault makes breaker inoperative


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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
109.~ Too large fault makes breaker inoperative


DEFINITION

Classification: 361/109

Too large fault makes breaker inoperative:

(under subclass 1) Subject matter having means for rendering a circuit breaker inoperative in the presence of a fault of such a large size that the circuit breaker cannot handle it.

(1) Note. This subclass relates, for example, to circuit breaker systems in which a smaller capacity circuit breaker has associated with it "back up" protection and in which only the "back up" protection operates on very large faults.