Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1996-07-30
1998-07-14
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 58, 361111, H02H 908
Patent
active
057813868
ABSTRACT:
The present invention relates to suppressing transient impulses in a power distribution system and more particularly to a device and method for suppressing transient impulses at frequencies which exceed the power frequencies while maintaining an acceptable "safety" impedance level at the power frequencies.
REFERENCES:
patent: 4178617 (1979-12-01), Reichel
patent: 4710861 (1987-12-01), Kanner
patent: 4751607 (1988-06-01), Smith
patent: 5038245 (1991-08-01), Gronskog
patent: 5388021 (1995-02-01), Stahl
patent: 5448443 (1995-09-01), Muelleman
patent: 5510945 (1996-04-01), Taylor et al.
patent: 5666255 (1997-09-01), Muelleman
Gaffin Jeffrey A.
Powervar, Inc.
Sherry Michael J.
LandOfFree
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