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2 054 185

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C1

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IPC

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Application

5008504/07, 1991-11-04

(22)

Actual filing date

1991-11-04

(45)

Published

1996-02-10

(72)

Inventor

Kogan D.A.Moldavskij M.M.Jakhnes Ju.A.Spektor Ja.S.Golokhov I.V.Genkin B.S.Ehtkin Z.A.

(73)

Holder

Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Institut Sredstv Avtomatizatsii Na Zheleznodorozhnom Transporte

METHOD FOR DETECTING GROUND FAULT IN EQUIPMENT USING COMMON GROUND-INSULATED POWER SUPPLY Russian patent published in 1996 - IPC

Abstract RU 2054185 C1

FIELD: instrumentation engineering. SUBSTANCE: reference voltage is shaped in equipment placed at D.C. potential; during measurement, it is adjusted and subtracted from voltage measured at respective points of equipment so as to obtain zero difference; then additional D.C. voltage is applied to equipment and upon time delay measurement is repeated; ground fault point is detected by zero value. EFFECT: improved measurement accuracy. 2 cl, 2 dwg

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RU 2 054 185 C1

Authors

Kogan D.A.

Moldavskij M.M.

Jakhnes Ju.A.

Spektor Ja.S.

Golokhov I.V.

Genkin B.S.

Ehtkin Z.A.

Dates

1996-02-10—Published

1991-11-04—Filed

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