JPS50104341A - - Google Patents

Info

Publication number
JPS50104341A
JPS50104341A JP50009900A JP990075A JPS50104341A JP S50104341 A JPS50104341 A JP S50104341A JP 50009900 A JP50009900 A JP 50009900A JP 990075 A JP990075 A JP 990075A JP S50104341 A JPS50104341 A JP S50104341A
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Pending
Application number
JP50009900A
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 filed Critical
Publication of JPS50104341A publication Critical patent/JPS50104341A/ja
Pending legal-status Critical Current

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
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP50009900A 1974-01-25 1975-01-24 Pending JPS50104341A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US436758A US3898531A (en) 1974-01-25 1974-01-25 Segregated phase comparison relaying apparatus

Publications (1)

Publication Number Publication Date
JPS50104341A true JPS50104341A (ja) 1975-08-18

Family

ID=23733715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50009900A Pending JPS50104341A (ja) 1974-01-25 1975-01-24

Country Status (9)

Country Link
US (1) US3898531A (ja)
JP (1) JPS50104341A (ja)
BR (1) BR7500491A (ja)
DE (1) DE2502850A1 (ja)
ES (1) ES434135A1 (ja)
FR (1) FR2259464B1 (ja)
GB (1) GB1494682A (ja)
IT (1) IT1029034B (ja)
SE (1) SE397239B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828811B2 (ja) * 1973-06-11 1983-06-18 三菱電機株式会社 位相比較継電装置
US4234901A (en) * 1979-03-08 1980-11-18 Westinghouse Electric Corp. Protective relay apparatus
DE3008480A1 (de) * 1980-03-05 1981-09-10 Siemens AG, 1000 Berlin und 8000 München Tonfrequenz-rundsteueranlage mit einer stromueberwachungseinrichtung
RU2013142168A (ru) * 2011-02-16 2015-03-27 Итон Индастриз (Острия) Гмбх Устройство защитного отключения

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462180A (en) * 1947-11-28 1949-02-22 Westinghouse Electric Corp Selective-pole tripping system
US3144585A (en) * 1962-05-22 1964-08-11 Texas Instruments Inc Logic control system for electrical power transmission network
US3381178A (en) * 1965-06-17 1968-04-30 Westinghouse Electric Corp Relaying system for high voltage transmission line utilizing a coupling capacitor
US3470418A (en) * 1967-06-06 1969-09-30 Westinghouse Electric Corp Phase comparison relaying network
US3612952A (en) * 1970-06-30 1971-10-12 Westinghouse Electric Corp Time delay signal device especially for phase comparison protective relaying system
US3710189A (en) * 1971-07-22 1973-01-09 Westinghouse Electric Corp Time delay signal device especially for phase comparison protective relaying system

Also Published As

Publication number Publication date
BR7500491A (pt) 1975-11-04
US3898531A (en) 1975-08-05
SE397239B (sv) 1977-10-24
GB1494682A (en) 1977-12-14
SE7500550L (sv) 1975-07-28
FR2259464B1 (ja) 1979-01-05
DE2502850A1 (de) 1975-07-31
ES434135A1 (es) 1976-12-16
IT1029034B (it) 1979-03-10
FR2259464A1 (ja) 1975-08-22

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