GB1090901A - Protective relay apparatus - Google Patents

Protective relay apparatus

Info

Publication number
GB1090901A
GB1090901A GB6014/64A GB601464A GB1090901A GB 1090901 A GB1090901 A GB 1090901A GB 6014/64 A GB6014/64 A GB 6014/64A GB 601464 A GB601464 A GB 601464A GB 1090901 A GB1090901 A GB 1090901A
Authority
GB
United Kingdom
Prior art keywords
voltage
transistor
circuit
relay
signals
Prior art date
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.)
Expired
Application number
GB6014/64A
Other languages
English (en)
Inventor
Hans Hoel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB6014/64A priority Critical patent/GB1090901A/en
Priority to US431643A priority patent/US3340435A/en
Priority to DE19651463133 priority patent/DE1463133A1/de
Priority to CH189965A priority patent/CH439460A/fr
Priority to BE659684D priority patent/BE659684A/xx
Priority to SE1894/65A priority patent/SE301342B/xx
Publication of GB1090901A publication Critical patent/GB1090901A/en
Expired 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
    • H02H3/40—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 ratio of voltage and current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)
GB6014/64A 1964-02-13 1964-02-13 Protective relay apparatus Expired GB1090901A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB6014/64A GB1090901A (en) 1964-02-13 1964-02-13 Protective relay apparatus
US431643A US3340435A (en) 1964-02-13 1965-02-10 Electrical protective relay apparatus
DE19651463133 DE1463133A1 (de) 1964-02-13 1965-02-10 Elektrische Vorrichtung
CH189965A CH439460A (fr) 1964-02-13 1965-02-12 Relais de protection
BE659684D BE659684A (OSRAM) 1964-02-13 1965-02-12
SE1894/65A SE301342B (OSRAM) 1964-02-13 1965-02-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6014/64A GB1090901A (en) 1964-02-13 1964-02-13 Protective relay apparatus

Publications (1)

Publication Number Publication Date
GB1090901A true GB1090901A (en) 1967-11-15

Family

ID=9806873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6014/64A Expired GB1090901A (en) 1964-02-13 1964-02-13 Protective relay apparatus

Country Status (6)

Country Link
US (1) US3340435A (OSRAM)
BE (1) BE659684A (OSRAM)
CH (1) CH439460A (OSRAM)
DE (1) DE1463133A1 (OSRAM)
GB (1) GB1090901A (OSRAM)
SE (1) SE301342B (OSRAM)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142783A (en) * 1965-04-23 1969-02-12 Reyrolle A & Co Ltd Improvements relating to protective arrangements including electric level-responsive circuits
US3440492A (en) * 1966-09-01 1969-04-22 Itt Voltage regulator and failure circuits
US3441802A (en) * 1966-12-20 1969-04-29 Powercon Inc Voltage responsive relay type quantizer for monitoring plural sources
US3497772A (en) * 1967-01-18 1970-02-24 Westinghouse Electric Corp Pilot wire protective arrangement for alternating current system wherein relay operating and restraint signals are derived during half cycles of opposite polarities
CN115436687B (zh) * 2022-08-31 2023-06-16 重庆泊津科技有限公司 站用变压器接地电流同步合成方法及系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608606A (en) * 1950-06-29 1952-08-26 Westinghouse Electric Corp Bus differential protection
US3108205A (en) * 1958-05-02 1963-10-22 Burroughs Corp Voltage sensing control circuit
CA644642A (en) * 1958-10-27 1962-07-10 F. Schuh Niles Undervoltage sensing circuit
US3037151A (en) * 1959-01-02 1962-05-29 Rca Corp Voltage monitoring apparatus
GB981752A (en) * 1960-06-09 1965-01-27 English Electric Co Ltd Improvements in or relating to electrical protective relays
US3167685A (en) * 1961-05-08 1965-01-26 Gen Precision Inc Computer protection circuit

Also Published As

Publication number Publication date
DE1463133A1 (de) 1968-12-12
BE659684A (OSRAM) 1965-05-28
SE301342B (OSRAM) 1968-06-04
CH439460A (fr) 1967-07-15
US3340435A (en) 1967-09-05

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