DE2736953A1 - Phasenvergleichsschutzschalteinrichtung - Google Patents

Phasenvergleichsschutzschalteinrichtung

Info

Publication number
DE2736953A1
DE2736953A1 DE19772736953 DE2736953A DE2736953A1 DE 2736953 A1 DE2736953 A1 DE 2736953A1 DE 19772736953 DE19772736953 DE 19772736953 DE 2736953 A DE2736953 A DE 2736953A DE 2736953 A1 DE2736953 A1 DE 2736953A1
Authority
DE
Germany
Prior art keywords
signal
current
logic
value
limits
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.)
Withdrawn
Application number
DE19772736953
Other languages
German (de)
English (en)
Inventor
Russell W Gonnam
Jun Walter L Hinman
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.)
Westinghouse Electric Corp
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 DE2736953A1 publication Critical patent/DE2736953A1/de
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE19772736953 1976-08-20 1977-08-17 Phasenvergleichsschutzschalteinrichtung Withdrawn DE2736953A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/716,045 US4053940A (en) 1976-08-20 1976-08-20 Modified offset keying apparatus for phase comparison relaying

Publications (1)

Publication Number Publication Date
DE2736953A1 true DE2736953A1 (de) 1978-02-23

Family

ID=24876503

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772736953 Withdrawn DE2736953A1 (de) 1976-08-20 1977-08-17 Phasenvergleichsschutzschalteinrichtung

Country Status (11)

Country Link
US (1) US4053940A (enExample)
JP (1) JPS5325847A (enExample)
BR (1) BR7705487A (enExample)
CA (1) CA1085953A (enExample)
DE (1) DE2736953A1 (enExample)
ES (1) ES461776A1 (enExample)
FR (1) FR2362513A1 (enExample)
GB (1) GB1587447A (enExample)
IT (1) IT1088501B (enExample)
MX (1) MX143975A (enExample)
SE (1) SE438580B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915407A1 (de) * 1978-04-18 1979-10-31 Tokyo Shibaura Electric Co Verfahren und vorrichtung zum ueberwachen einer digitalen schutzrelaiseinrichtung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752321A (en) 1980-09-10 1982-03-27 Mitsubishi Electric Corp Phase discriminator
US4935837A (en) * 1989-04-03 1990-06-19 Abb Power T&D Company Inc. Phase comparison relaying system with single channel communications link
US6469882B1 (en) * 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
JP4861542B2 (ja) * 2006-07-13 2012-01-25 大成化工株式会社 キャップ付き容器におけるキャップの閉蓋案内装置。

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5013937A (enExample) * 1973-06-08 1975-02-13
US3986079A (en) * 1975-02-07 1976-10-12 Westinghouse Electric Corporation Offset keying technique for segregated phase comparison relaying

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915407A1 (de) * 1978-04-18 1979-10-31 Tokyo Shibaura Electric Co Verfahren und vorrichtung zum ueberwachen einer digitalen schutzrelaiseinrichtung

Also Published As

Publication number Publication date
FR2362513A1 (fr) 1978-03-17
IT1088501B (it) 1985-06-10
ES461776A1 (es) 1978-12-01
GB1587447A (en) 1981-04-01
MX143975A (es) 1981-08-12
US4053940A (en) 1977-10-11
BR7705487A (pt) 1978-07-04
SE438580B (sv) 1985-04-22
SE7709367L (sv) 1978-02-21
FR2362513B1 (enExample) 1980-05-16
CA1085953A (en) 1980-09-16
JPS5325847A (en) 1978-03-10

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee