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2 011 255

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Application

4913110/07, 1991-02-22

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Actual filing date

1991-02-22

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Published

1994-04-15

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Inventor

Gel'Fand Ja.S.Leviush A.I.Sapir E.D.Uzhegov V.T.Doni N.A.Naumov A.M.Shevelev V.S.Popov V.A.Abakarov A.R.Misrikhanov M.Sh.

(73)

Holder

Nauchno-Issledovatel'Skij Institut EhlektroehnergetikiVserossijskij Nauchno-Issledovatel'Skij, Proektno-Konstruktorskij I Tekhnologicheskij Institut Relestroenija

MEASUREMENT LOGIC UNIT FOR DIFFERENTIAL-PHASE HIGH-FREQUENCY PROTECTION OF ELECTRIC POWER LINE Russian patent published in 1994 - IPC

Abstract RU 2011255 C1

FIELD: electrical engineering. SUBSTANCE: with insertion of new starting element responding to vector increment of negative sequence, logic elements and logic couplings adjustment from currents of negative sequence is provided under rated conditions without coarseness of starting elements which prevents failure in operation of protection and prolonged start of HF signal in circuit of external power supply of traction load. EFFECT: improved operational characteristics of protection and reliability. 1 dwg

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RU 2 011 255 C1

Authors

Gel'Fand Ja.S.

Leviush A.I.

Sapir E.D.

Uzhegov V.T.

Doni N.A.

Naumov A.M.

Shevelev V.S.

Popov V.A.

Abakarov A.R.

Misrikhanov M.Sh.

Dates

1994-04-15—Published

1991-02-22—Filed

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