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2 081 492

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IPC

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Application

94044840/07, 1994-12-28

(22)

Actual filing date

1994-12-28

(45)

Published

1997-06-10

(72)

Inventor

Strelkov V.M.Fokin G.G.Surtseva S.E.Krylova L.V.

(73)

Holder

Rossijskoe Aktsionernoe Obshchestvo Ehnergetiki I EhlektrifikatsiiAktsionernoe Obshchestvo Institut Ehlektroehnergetiki"

DEVICE FOR PROTECTING THREE-PHASE POWER TRANSMISSION LINE Russian patent published in 1997 - IPC

Abstract RU 2081492 C1

FIELD: relay protection of high-voltage power transmission lines. SUBSTANCE: device has ac-to-dc converting units 1, 2, 3, breaking voltage shaping unit 4, comparison circuit 5. Newly introduced are two additional comparison circuits 6, 7, OR gate. EFFECT: improved operating reliability of device and power system as a whole due to dispensing with external connections to single-phase automatic-reclosure devices. 2 cl, 3 dwg

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RU 2 081 492 C1

Authors

Strelkov V.M.

Fokin G.G.

Surtseva S.E.

Krylova L.V.

Dates

1997-06-10—Published

1994-12-28—Filed

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