Fault detector for two line power distribution system and...

Details Fault detector for two line power distribution system and... Fault detector for two line power distribution system and...

2006-12-12

2006-12-12

Leja, Ronald W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

Reexamination Certificate

active

07149066

ABSTRACT:
Apparatus for protecting a two-line electric power distribution system includes a circuit breaker pole in each line. Each pole includes a fault detector generating a fault signal in response to either an arc fault or a ground fault in the protected line, and a trip unit responsive to the fault signal. Each trip unit includes a trip coil and an SCR connected in series at a node with the trip coil connected to the neutral conductor and the SCR connected to the associated line conductor. A jumper connects the two nodes together directly without electrical isolation so that a fault signal from either detector energizes both trip coils to open both poles in response to an arc fault or a ground fault in either line, even if one of the line conductors is not energized.

REFERENCES:
patent: 3895263 (1975-07-01), Clark
patent: 3944888 (1976-03-01), Clark
patent: 4208688 (1980-06-01), Misencik et al.
patent: 5453723 (1995-09-01), Fello et al.
patent: 5459630 (1995-10-01), MacKenzie et al.
patent: 5565833 (1996-10-01), Leet et al.
patent: 5805398 (1998-09-01), Rae
patent: 5889643 (1999-03-01), Elms
patent: 5892420 (1999-04-01), Larranaga et al.
patent: 5896262 (1999-04-01), Rae et al.
patent: 6014297 (2000-01-01), Clarey et al.
patent: 6031699 (2000-02-01), Dollar et al.
patent: 6057997 (2000-05-01), Mackenzie et al.
patent: 6388849 (2002-05-01), Rae

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