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2 446 533

(13)

(51)

IPC

H02H3/16(2006-01-01)

G01R31/08(2006-01-01)

(21) (22)

Application

2010132425/07, 2010-08-02

(24)

Start date

2010-08-02

(22)

Actual filing date

2010-08-02

(45)

Published

2012-03-27

(72)

Inventor

Mustafin Ramil' GamilovichKotel'Nikova Elena Evgen'Evna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Ehnergeticheskij Universitet"

METHOD TO DETECT AREA OF SINGLE-PHASE GROUND FAULT IN NETWORK WITH ISOLATED NEUTRAL Russian patent published in 2012 - IPC H02H3/16 G01R31/08

Abstract RU 2446533 C1

FIELD: electricity.

SUBSTANCE: method consists in fixation of a damage moment, supplying high-frequency voltage to buses of a distribution device feeding power transmission lines, with frequency higher than the industrial frequency of 50 Hz, measurement of emergency mode parameters in the beginning of the line is carried out by measurement of high-frequency phase voltage and high-frequency phase current, detection of distance to the damage area by emergency mode parameters and characteristics of the power transmission line, at the same time the characteristic of the power transmission line is high-frequency linear resistance of zero sequence of the power transmission line.

EFFECT: improved accuracy.

3 dwg

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RU 2 446 533 C1

Authors

Mustafin Ramil' Gamilovich

Kotel'Nikova Elena Evgen'Evna

Dates

2012-03-27—Published

2010-08-02—Filed