IT7920344A0 - Rele' protettore a distanza di terra impiegante una misura di comparazione di fase. - Google Patents

Rele' protettore a distanza di terra impiegante una misura di comparazione di fase.

Info

Publication number
IT7920344A0
IT7920344A0 IT7920344A IT2034479A IT7920344A0 IT 7920344 A0 IT7920344 A0 IT 7920344A0 IT 7920344 A IT7920344 A IT 7920344A IT 2034479 A IT2034479 A IT 2034479A IT 7920344 A0 IT7920344 A0 IT 7920344A0
Authority
IT
Italy
Prior art keywords
phase comparison
protective relay
comparison measurement
earth distance
distance protective
Prior art date
Application number
IT7920344A
Other languages
English (en)
Other versions
IT1193177B (it
Original Assignee
Gen Electric
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of IT7920344A0 publication Critical patent/IT7920344A0/it
Application granted granted Critical
Publication of IT1193177B publication Critical patent/IT1193177B/it

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/385—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
IT20344/79A 1978-02-21 1979-02-20 Rele' protettore a distanza di terra impiegante una misura di comparazione di fase IT1193177B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/879,653 US4161011A (en) 1978-02-21 1978-02-21 Ground distance relay employing phase comparator measurement

Publications (2)

Publication Number Publication Date
IT7920344A0 true IT7920344A0 (it) 1979-02-20
IT1193177B IT1193177B (it) 1988-06-02

Family

ID=25374597

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20344/79A IT1193177B (it) 1978-02-21 1979-02-20 Rele' protettore a distanza di terra impiegante una misura di comparazione di fase

Country Status (9)

Country Link
US (1) US4161011A (it)
BR (1) BR7901037A (it)
DE (1) DE2906110A1 (it)
ES (1) ES477892A1 (it)
FR (1) FR2417872A1 (it)
GB (1) GB1603291A (it)
IT (1) IT1193177B (it)
SE (1) SE7901478L (it)
ZA (1) ZA79460B (it)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342064A (en) * 1978-02-21 1982-07-27 General Electric Company Static distance relays with improved polarizing signal
US4296451A (en) * 1979-10-11 1981-10-20 General Electric Company Ultra high speed protective relay circuit
US4329727A (en) * 1980-07-16 1982-05-11 General Electric Company Directional power distance relay
US4398255A (en) * 1981-06-26 1983-08-09 General Electric Company Polyphase angle estimator
JPS5858822A (ja) * 1981-09-30 1983-04-07 株式会社東芝 保護継電装置
US4405966A (en) * 1981-10-07 1983-09-20 General Electric Company System for providing protection for a high voltage transmission line
US4403268A (en) * 1982-01-28 1983-09-06 General Electric Company Protective relay having an improved characteristic angle adjustment circuit
AT374983B (de) * 1982-06-03 1984-06-25 Aeg Telefunken Oesterr Selektive erdschlusschutzschaltung fuer eine hochspannungskabelstrecke
US4447845A (en) * 1982-07-07 1984-05-08 General Electric Company Reactance relay
US4453191A (en) * 1982-07-29 1984-06-05 General Electric Company Overvoltage directional relay
US4420788A (en) * 1982-07-29 1983-12-13 General Electric Company Phase relay for AC power transmission line protection
US4433353A (en) * 1982-07-29 1984-02-21 General Electric Company Positive sequence undervoltage distance relay
US4686601A (en) * 1985-10-02 1987-08-11 General Electric Company Ground distance relay for AC power transmission line protection
US5790418A (en) * 1995-10-17 1998-08-04 Schweitzer Engineering Laboratories, Inc. Adaptive polarizing memory voltage time constant
AU2002226885A1 (en) 2000-11-08 2002-05-21 General Electric Company Apparatus and method for detecting and calculating ground fault resistance
DE10139860A1 (de) * 2001-08-14 2003-03-13 Bosch Gmbh Robert Vorrichtung und Verfahren zur Anschlussüberwachung einer elektrischen Versorgungseinheit
CN100444493C (zh) * 2005-12-28 2008-12-17 长沙理工大学 一种自适应接地阻抗继电器
US7498818B2 (en) * 2006-08-25 2009-03-03 Schweitzer Engineering Laboratories, Inc. Apparatus and method for detecting a brush liftoff in a synchronous generator rotor circuit
US8405940B2 (en) * 2009-10-13 2013-03-26 Schweitzer Engineering Laboratories Inc Systems and methods for generator ground fault protection
CN104052035B (zh) * 2014-07-09 2017-02-15 国家电网公司 同杆并架双回线路单相接地电抗继电器
US10288688B2 (en) 2014-07-24 2019-05-14 Schweitzer Engineering Laboratories, Inc. Systems and methods for monitoring and protecting an electric power generator
US9496707B2 (en) 2014-12-22 2016-11-15 Schweitzer Engineering Laboratories, Inc. Generator protection element
ITUB20154710A1 (it) 2015-10-15 2017-04-15 St Microelectronics Srl Circuito raddrizzatore a ponte, apparecchiatura e procedimento corrispondenti
US10197614B2 (en) 2016-05-02 2019-02-05 Schweitzer Engineering Laboratories, Inc. Fault location during pole-open condition
US10333291B2 (en) 2017-09-25 2019-06-25 Schweitzer Engineering Laboratories, Inc. Multiple generator ground fault detection
US10931097B2 (en) 2017-09-25 2021-02-23 Schweitzer Engineering Laboratories, Inc. Generator stator ground protection using third harmonic
US10797632B2 (en) 2018-08-21 2020-10-06 Schweitzer Engineering Laboratories, Inc. Sensitive directional element for generator protection
US11316455B2 (en) 2019-08-28 2022-04-26 Schweitzer Engineering Laboratories, Inc. Generator rotor turn-to-turn fault detection using fractional harmonics
US10819261B1 (en) 2019-10-25 2020-10-27 Schweitzer Engineering Laboratories, Inc. Security improvements for electric power generator protection
US11631972B2 (en) 2020-12-16 2023-04-18 Schweitzer Engineering Laboratories, Inc. Accurate modeling of equipment overexcitation damage curves
US11735908B2 (en) 2021-02-15 2023-08-22 Schweitzer Engineering Laboratories, Inc. Dependable open-phase detection in electric power delivery systems with inverter-based resources
CN113161986B (zh) * 2021-04-27 2024-10-01 北京四方继保工程技术有限公司 一种用于振荡中发生不对称故障的继电器及继电保护方法
US11650241B1 (en) 2022-06-28 2023-05-16 Schweitzer Engineering Laboratories, Inc. Incremental quantities-based fault locating technique and system
US12249948B2 (en) 2022-08-30 2025-03-11 Schweitzer Engineering Laboratories, Inc. Split-phase protection of generators
US12385962B2 (en) 2022-10-04 2025-08-12 Schweitzer Engineering Laboratories, Inc. Fault location estimation using incremental quantities
US11946966B1 (en) 2023-02-20 2024-04-02 Schweitzer Engineering Laboratories, Inc. Selective stator ground fault protection using positive-sequence voltage reference
US12362556B2 (en) 2023-03-07 2025-07-15 Schweitzer Engineering Laboratories, Inc. Single-ended broken conductor detection logic using incremental quantities
US12578374B2 (en) 2024-08-28 2026-03-17 Schweitzer Engineering Laboratories, Inc. Multi-ended impedance-based fault locating for untransposed transmission lines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374399A (en) * 1966-02-01 1968-03-19 Gen Electric Distance protective relaying
FR1597420A (it) * 1968-07-05 1970-06-29
GB1422346A (it) * 1972-11-28 1976-01-28
US4034269A (en) * 1975-12-12 1977-07-05 General Electric Company Protective relay circuits
US4091433A (en) * 1977-02-10 1978-05-23 General Electric Company Protective relay circuit for interphase faults

Also Published As

Publication number Publication date
SE7901478L (sv) 1979-08-22
DE2906110A1 (de) 1979-09-06
US4161011A (en) 1979-07-10
IT1193177B (it) 1988-06-02
FR2417872A1 (fr) 1979-09-14
GB1603291A (en) 1981-11-25
ES477892A1 (es) 1979-10-16
BR7901037A (pt) 1979-10-02
ZA79460B (en) 1980-02-27

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