Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1997-07-25
2000-08-08
Brown, Glenn W.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324509, 324771, 324557, G01R 3140, G01R 3112
Patent
active
061007021
ABSTRACT:
An apparatus and method for detecting a breach in an electrically insulating surface of an electrically conductive power system enclosure within which a number of series connected energy storing devices are disposed. The energy storing devices disposed in the enclosure are connected to a series power connection. A detector is coupled to the series connection and detects a change of state in a test signal derived from the series connected energy storing devices. The detector detects a breach in the insulating layer of the enclosure by detecting a state change in the test signal from a nominal state to a non-nominal state. A voltage detector detects a state change of the test signals from a nominal state, represented by a voltage of a selected end energy storing device, to a non-nominal state, represented by a voltage that substantially exceeds the voltage of the selected opposing end energy storing device. Alternatively, the detector may comprise a signal generator that produces the test signal as a time-varying or modulated test signal and injects the test signal into the series connection. The detector detects the state change of the time-varying or modulated test signal from a nominal state, represented by a signal substantially equivalent to the test signal, to a non-nominal state, representative by an absence of the test signal.
REFERENCES:
patent: 2812376 (1957-11-01), Yardney
patent: 3193412 (1965-07-01), Salkind et al.
patent: 3390014 (1968-06-01), Eisler
patent: 3578506 (1971-05-01), Chassoux
patent: 3630783 (1971-12-01), Przybyla
patent: 3786466 (1974-01-01), Naito et al.
patent: 3793501 (1974-02-01), Stonestrom
patent: 3899355 (1975-08-01), Chiklis
patent: 3937635 (1976-02-01), Mead et al.
patent: 4028479 (1977-06-01), Fanciullo et al.
patent: 4060669 (1977-11-01), Fanciullo
patent: 4060670 (1977-11-01), Tamminen
patent: 4080728 (1978-03-01), Buckler
patent: 4091186 (1978-05-01), Ott et al.
patent: 4098965 (1978-07-01), Kinsman
patent: 4105807 (1978-08-01), Arora
patent: 4137627 (1979-02-01), Kinsman
patent: 4150266 (1979-04-01), Patrichi
patent: 4152825 (1979-05-01), Bruneau
patent: 4207389 (1980-06-01), Gunther et al.
patent: 4209479 (1980-06-01), Gunther et al.
patent: 4233371 (1980-11-01), Dorrestijn
patent: 4238721 (1980-12-01), DeLuca et al.
patent: 4241152 (1980-12-01), Klink
patent: 4280097 (1981-07-01), Carey et al.
patent: 4303877 (1981-12-01), Meinhold
patent: 4321435 (1982-03-01), Grieger et al.
patent: 4322484 (1982-03-01), Sugalski
patent: 4342978 (1982-08-01), Meister
patent: 4370531 (1983-01-01), Tobin
patent: 4383013 (1983-05-01), Bindin et al.
patent: 4409086 (1983-10-01), Haas et al.
patent: 4409538 (1983-10-01), Tabata
patent: 4429026 (1984-01-01), Bruder
patent: 4436792 (1984-03-01), Tomino et al.
patent: 4477545 (1984-10-01), Akridge et al.
patent: 4479083 (1984-10-01), Sullivan
patent: 4490707 (1984-12-01), O'Leary
patent: 4495259 (1985-01-01), Uba
patent: 4507857 (1985-04-01), Epstein et al.
patent: 4517265 (1985-05-01), Belanger et al.
patent: 4518665 (1985-05-01), Fujita et al.
patent: 4525439 (1985-06-01), Simonton
patent: 4547438 (1985-10-01), McArthur et al.
patent: 4571468 (1986-02-01), Weldon
patent: 4654278 (1987-03-01), McManis, III et al.
patent: 4664993 (1987-05-01), Sturgis et al.
patent: 4670703 (1987-06-01), Williams
patent: 4691085 (1987-09-01), Swanson
patent: 4692577 (1987-09-01), Swanson
patent: 4707795 (1987-11-01), Alber et al.
patent: 4752540 (1988-06-01), Chua et al.
patent: 4758483 (1988-07-01), Armand et al.
patent: 4816354 (1989-03-01), Tamminen
patent: 4824746 (1989-04-01), Belanger et al.
patent: 4828939 (1989-05-01), Turley et al.
patent: 4851307 (1989-07-01), Armand et al.
patent: 4852684 (1989-08-01), Packard
patent: 4883726 (1989-11-01), Peled et al.
patent: 4887348 (1989-12-01), Tamminen
patent: 4897917 (1990-02-01), Gauthier et al.
patent: 4911993 (1990-03-01), Turley et al.
patent: 4913259 (1990-04-01), Packard
patent: 4923582 (1990-05-01), Abrahamson et al.
patent: 4927717 (1990-05-01), Turley et al.
patent: 4961043 (1990-10-01), Koenck
patent: 4967136 (1990-10-01), Nofzinger
patent: 4971531 (1990-11-01), Aikioniemi
patent: 4973936 (1990-11-01), Dimpault-Darcy et al.
patent: 4997732 (1991-03-01), Austin et al.
patent: 5008161 (1991-04-01), Johnston
patent: 5057385 (1991-10-01), Hope et al.
patent: 5066555 (1991-11-01), Tamminen
patent: 5070787 (1991-12-01), Weldon et al.
patent: 5071652 (1991-12-01), Jones et al.
patent: 5089027 (1992-02-01), Rossoll et al.
patent: 5162171 (1992-11-01), Jones
patent: 5180641 (1993-01-01), Burns et al.
patent: 5197889 (1993-03-01), Rizzo et al.
patent: 5199239 (1993-04-01), Younger
patent: 5204194 (1993-04-01), Miller et al.
patent: 5227259 (1993-07-01), Weaver et al.
patent: 5227264 (1993-07-01), Duval et al.
patent: 5283512 (1994-02-01), Stadnick et al.
patent: 5300373 (1994-04-01), Shackle
patent: 5313152 (1994-05-01), Wozniak et al.
patent: 5324597 (1994-06-01), Leadbetter et al.
patent: 5337042 (1994-08-01), Hormel et al.
patent: 5346786 (1994-09-01), Hodgetts
patent: 5354630 (1994-10-01), Earl et al.
patent: 5363405 (1994-11-01), Hormel
patent: 5382480 (1995-01-01), Molyneux
patent: 5384212 (1995-01-01), Heiman et al.
patent: 5385793 (1995-01-01), Tiedemann et al.
patent: 5393617 (1995-02-01), Klein
patent: 5401595 (1995-03-01), Kagawa et al.
patent: 5409787 (1995-04-01), Blanyer et al.
patent: 5415954 (1995-05-01), Gauthier et al.
patent: 5422200 (1995-06-01), Hope et al.
patent: 5423110 (1995-06-01), Gauthier et al.
patent: 5438249 (1995-08-01), Chang et al.
patent: 5478667 (1995-12-01), Shackle et al.
patent: 5478668 (1995-12-01), Gozdz et al.
patent: 5479083 (1995-12-01), Brainard
patent: 5487958 (1996-01-01), Tura
patent: 5503947 (1996-04-01), Kelly et al.
patent: 5503948 (1996-04-01), MacKay et al.
patent: 5504415 (1996-04-01), Podrazhansky et al.
patent: 5519563 (1996-05-01), Higashijimaa et al.
patent: 5521024 (1996-05-01), Sasaki et al.
patent: 5528122 (1996-06-01), Sullivan et al.
patent: 5530336 (1996-06-01), Eguchi et al.
patent: 5530363 (1996-06-01), Gaughan et al.
patent: 5532087 (1996-07-01), Nerz et al.
patent: 5547775 (1996-08-01), Eguchi et al.
patent: 5547780 (1996-08-01), Kagawa et al.
patent: 5548200 (1996-08-01), Nor et al.
patent: 5552243 (1996-09-01), Klein
patent: 5556576 (1996-09-01), Kim
patent: 5561380 (1996-10-01), Sway-Tin et al.
patent: 5563002 (1996-10-01), Harshe
patent: 5567539 (1996-10-01), Takahashi et al.
patent: 5568039 (1996-10-01), Fernandez
patent: 5569063 (1996-10-01), Morioka et al.
patent: 5569550 (1996-10-01), Garrett et al.
patent: 5573869 (1996-11-01), Hwang et al.
patent: 5582931 (1996-12-01), Kawakami
patent: 5585207 (1996-12-01), Wakabe et al.
patent: 5589290 (1996-12-01), Klink et al.
patent: 5593604 (1997-01-01), Beasly et al.
patent: 5594320 (1997-01-01), Pacholok et al.
patent: 5595835 (1997-01-01), Miyamoto et al.
patent: 5595839 (1997-01-01), Hossain
patent: 5599636 (1997-02-01), Braun
patent: 5600230 (1997-02-01), Dunstan
patent: 5602481 (1997-02-01), Fukuyama
patent: 5610495 (1997-03-01), Yee et al.
patent: 5612153 (1997-03-01), Moulton et al.
patent: 5618641 (1997-04-01), Arias
patent: 5619417 (1997-04-01), Kendall
patent: 5620808 (1997-04-01), Wheeler et al.
patent: 5622789 (1997-04-01), Young
patent: 5623196 (1997-04-01), Fernandez et al.
patent: 5626990 (1997-05-01), Miller et al.
patent: 5631537 (1997-05-01), Armstrong
patent: 5633573 (1997-05-01), van Phuoc et al.
patent: 5637981 (1997-06-01), Nagai et al.
patent: 5643044 (1997-07-01), Lund
patent: 5647531 (1997-07-01), Kelz et al.
patent: 5648713 (1997-07-01), Mangez
patent: 5650240 (1997-07-01), Rogers
patent: 5652498 (1997-07-01), Edye et al.
patent: 5652502 (1997-07-01), van Phuoc et al.
patent: 5654622 (1997-08-01), Toya et al.
patent: 5670272 (1997-09-01), Cheu et al.
patent: 5824432 (1998-10-01), Currle
Comte Christophe
Hagen Ronald A.
Knudson Orlin B.
Rosenthal Brian
Rouillard Jean
3M Innovative Properties Company
Brown Glenn W.
Hydro-Quebec Corporation
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