Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Patent
1991-02-21
1992-08-18
DeBoer, Todd E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
361127, 337256, H02H 906
Patent
active
051404915
ABSTRACT:
Electrical transient surge protection of electrical equipment downstream from a power source plus safeguarding of apparatus for providing such surge protection against failure at high currents or high temperature. Non-linear over-voltage means, such as varistors, function to clip transient voltage surges and to shunt resulting currents to ground so as to protect watt-hour meters and downstram loads from electrical surges. Adjacent arc-extinguishing components aid in safeguarding varistors or similar over-voltage means from potentially catastrophic destruction in the event of extreme over-heating from unusually frequent or prolonged surges. Such apparatus may be located in such diverse places as a power line weatherhead, a watt-hour meter base, an adapter between a meter base and its normal mounting socket, or a utility panel having such a socket, or in a circuit-breaker panel or even an electrical outlet receptacle downstream of the meter and upstream of metered electrical loads.
REFERENCES:
patent: 3987343 (1976-10-01), Cunningham et al.
patent: 4439807 (1984-03-01), Reitz
patent: 4736181 (1988-04-01), Dornauer
Deboer Todd E.
McClure Charles A.
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