Surge arrester circuit and housing therefor

Details Surge arrester circuit and housing therefor Surge arrester circuit and housing therefor

1993-02-10

1995-05-02

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, 361127, H02H 320, H02H 906

Patent

active

054125260

ABSTRACT:
The present invention provides a circuit for limiting voltage surges in load centers, panelboards and other electrical distribution devices. The circuit includes at least one high potential terminal adapted for connecting to at least one corresponding service line and a low potential terminal adapted for connecting to a low potential means. The circuit also includes a plurality of varistors connected in parallel to one another between each high potential terminal and the low potential terminal and a plurality of fuses corresponding in number to the plurality of varistors. Each fuse is connected in series to one of the varistors. Each fuse opens the circuit therethrough upon failure of the associated varistor. The circuit further includes monitoring the status condition of the fuses.

REFERENCES:
patent: 4152743 (1979-05-01), Comstock
patent: 4740859 (1988-04-01), Little
patent: 4866560 (1989-09-01), Allina
patent: 5010438 (1991-04-01), Brady

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