IN145804B - - Google Patents

Info

Publication number
IN145804B
IN145804B IN2407/CAL/75A IN2407CA1975A IN145804B IN 145804 B IN145804 B IN 145804B IN 2407CA1975 A IN2407CA1975 A IN 2407CA1975A IN 145804 B IN145804 B IN 145804B
Authority
IN
India
Application number
IN2407/CAL/75A
Other languages
English (en)
Inventor
K K Mustaphi
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of IN145804B publication Critical patent/IN145804B/en

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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • H02H3/302—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving phase comparison
    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • H02H3/307—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving comparison of quantities derived from a plurality of phases, e.g. homopolar quantities; using mixing transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
IN2407/CAL/75A 1975-02-07 1975-12-29 IN145804B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/548,130 US3963964A (en) 1975-02-07 1975-02-07 Segregated phase comparison system

Publications (1)

Publication Number Publication Date
IN145804B true IN145804B (ja) 1978-12-30

Family

ID=24187545

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2407/CAL/75A IN145804B (ja) 1975-02-07 1975-12-29

Country Status (12)

Country Link
US (1) US3963964A (ja)
JP (1) JPS51103247A (ja)
AU (1) AU503607B2 (ja)
BR (1) BR7600575A (ja)
DE (1) DE2604311A1 (ja)
ES (1) ES444973A1 (ja)
FR (1) FR2300450A1 (ja)
GB (1) GB1531430A (ja)
IN (1) IN145804B (ja)
IT (1) IT1070773B (ja)
SE (1) SE403862B (ja)
SU (1) SU620230A3 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3570160D1 (en) * 1984-07-31 1989-06-15 Bbc Brown Boveri & Cie Protective device for an electrical-power system
US5495381A (en) * 1994-11-22 1996-02-27 Sundstrand Corporation Protection system for undetected over voltage in an isolated voltage regulator
AU2003231962A1 (en) * 2002-02-25 2003-09-09 General Electric Company External clock to obtain multiple synchronized computer
US7747356B2 (en) 2002-02-25 2010-06-29 General Electric Company Integrated protection, monitoring, and control system
US7111195B2 (en) 2002-02-25 2006-09-19 General Electric Company Method and system for external clock to obtain multiple synchronized redundant computers
US7058482B2 (en) * 2002-02-25 2006-06-06 General Electric Company Data sample and transmission modules for power distribution systems
US20030212473A1 (en) * 2002-02-25 2003-11-13 General Electric Company Processing system for a power distribution system
US7532955B2 (en) * 2002-02-25 2009-05-12 General Electric Company Distributed protection system for power distribution systems
US7636616B2 (en) * 2003-02-25 2009-12-22 General Electric Company Protection system for power distribution systems
CN101635453A (zh) * 2009-08-20 2010-01-27 中国电力科学研究院 限制特高压同塔双回线路潜供电流的方法及装置
CN102680823A (zh) * 2012-05-07 2012-09-19 宁波电业局 一种高频保护装置的高频通道交换试验系统
WO2013174415A1 (de) * 2012-05-22 2013-11-28 Siemens Aktiengesellschaft Verfahren und vorrichtung zur zuordnung einzelner phasenleiter in einem mehrphasigen energieverteilnetz
CN107947129B (zh) * 2016-10-12 2020-01-17 国网西藏电力有限公司 一种零序保护方法
CN109031175A (zh) * 2018-06-14 2018-12-18 国网江苏省电力有限公司 一种零序电流校验方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB279638A (en) * 1926-11-01 1927-11-03 British Thomson Houston Co Ltd Improvements in electric protective apparatus
FR1000529A (fr) * 1946-02-21 1952-02-13 Union D Electricite Perfectionnements apportés aux procédés et appareils pour la protection sélectivedes réseaux
US3339115A (en) * 1965-05-17 1967-08-29 Westinghouse Electric Corp Directional relay apparatus
US3882361A (en) * 1972-10-04 1975-05-06 Westinghouse Electric Corp Segregated phase comparison relaying apparatus
US3893008A (en) * 1972-10-04 1975-07-01 Westinghouse Electric Corp Segregated phase comparison relaying apparatus

Also Published As

Publication number Publication date
GB1531430A (en) 1978-11-08
JPS51103247A (ja) 1976-09-11
FR2300450B1 (ja) 1980-08-29
AU1053376A (en) 1977-07-28
FR2300450A1 (fr) 1976-09-03
SU620230A3 (ru) 1978-08-15
BR7600575A (pt) 1976-08-31
AU503607B2 (en) 1979-09-13
ES444973A1 (es) 1977-08-01
SE7600923L (sv) 1976-08-09
DE2604311A1 (de) 1976-08-19
IT1070773B (it) 1985-04-02
SE403862B (sv) 1978-09-04
US3963964A (en) 1976-06-15

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