RU2003112477A - METHOD FOR DIFFERENTIAL-PHASE PROTECTION OF ELECTRIC TRANSMISSION LINES - Google Patents

METHOD FOR DIFFERENTIAL-PHASE PROTECTION OF ELECTRIC TRANSMISSION LINES

Info

Publication number
RU2003112477A
RU2003112477A RU2003112477/09A RU2003112477A RU2003112477A RU 2003112477 A RU2003112477 A RU 2003112477A RU 2003112477/09 A RU2003112477/09 A RU 2003112477/09A RU 2003112477 A RU2003112477 A RU 2003112477A RU 2003112477 A RU2003112477 A RU 2003112477A
Authority
RU
Russia
Prior art keywords
differential
protection
threshold
transmission lines
phase protection
Prior art date
Application number
RU2003112477/09A
Other languages
Russian (ru)
Other versions
RU2237331C1 (en
Inventor
Николай Анатольевич Дони
Анатолий Николаевич Дони
Константин Николаевич Дони
Александр Ильич Левиуш
Original Assignee
Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА"
Filing date
Publication date
Application filed by Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА" filed Critical Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА"
Priority to RU2003112477/09A priority Critical patent/RU2237331C1/en
Priority claimed from RU2003112477/09A external-priority patent/RU2237331C1/en
Application granted granted Critical
Publication of RU2237331C1 publication Critical patent/RU2237331C1/en
Publication of RU2003112477A publication Critical patent/RU2003112477A/en

Links

Claims (3)

1. Способ дифференциально-фазной защиты линии электропередачи, характеризующийся тем, что на каждом конце линии электропередачи устанавливают порог пуска защиты на отключение и порог полной манипуляции высокочастотного сигнала, компенсируют емкостные токи в составе пускового тока защиты и тока манипуляции высокочастотного сигнала, контролируют цепи вторичного напряжения и блокируют компенсацию емкостных токов на том конце линии электропередачи, где обнаружена неисправность цепей вторичного напряжения.1. The method of differential-phase protection of the power line, characterized in that at each end of the power line set the start threshold of protection on shutdown and the threshold of full manipulation of the high-frequency signal, compensate for capacitive currents in the composition of the inrush current protection and manipulation current of the high-frequency signal, control the secondary voltage circuit and block the compensation of capacitive currents at the end of the power line where a malfunction of the secondary voltage circuits is detected. 2. Способ по п.1, отличающийся тем, что при блокировании компенсации емкостных токов повышают порог полной манипуляции ВЧ сигнала.2. The method according to claim 1, characterized in that when blocking the compensation of capacitive currents increase the threshold for complete manipulation of the RF signal. 3. Способ по п.1, отличающийся тем, что при блокировании компенсации емкостных токов повышают порог пуска защиты на отключение.3. The method according to claim 1, characterized in that when blocking the compensation of capacitive currents, the threshold for starting the protection to trip is increased.
RU2003112477/09A 2003-04-29 2003-04-29 Method for phase-comparison protection of power transmission line RU2237331C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003112477/09A RU2237331C1 (en) 2003-04-29 2003-04-29 Method for phase-comparison protection of power transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003112477/09A RU2237331C1 (en) 2003-04-29 2003-04-29 Method for phase-comparison protection of power transmission line

Publications (2)

Publication Number Publication Date
RU2237331C1 RU2237331C1 (en) 2004-09-27
RU2003112477A true RU2003112477A (en) 2004-11-27

Family

ID=33433829

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003112477/09A RU2237331C1 (en) 2003-04-29 2003-04-29 Method for phase-comparison protection of power transmission line

Country Status (1)

Country Link
RU (1) RU2237331C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2206208B1 (en) 2007-10-25 2015-09-02 ABB Technology AG Differential protection method, system and device
RU2455740C1 (en) * 2011-05-18 2012-07-10 Открытое акционерное общество "Шадринский телефонный завод" Method of generating high-frequency signals for relay phase differential protection of overhead power transmission lines
RU2585005C1 (en) * 2014-12-23 2016-05-27 Геннадий Васильевич Чирков Method of protecting power transmission line
RU2735949C1 (en) * 2020-04-03 2020-11-11 Общество с ограниченной ответственностью "Релематика" Method of protecting power transmission lines with renewable energy sources

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