SE397908B - RELAY PROTECTION SYSTEM - Google Patents

RELAY PROTECTION SYSTEM

Info

Publication number
SE397908B
SE397908B SE7313551A SE7313551A SE397908B SE 397908 B SE397908 B SE 397908B SE 7313551 A SE7313551 A SE 7313551A SE 7313551 A SE7313551 A SE 7313551A SE 397908 B SE397908 B SE 397908B
Authority
SE
Sweden
Prior art keywords
protection system
relay protection
relay
protection
Prior art date
Application number
SE7313551A
Other languages
Swedish (sv)
Inventor
Jr W A Strickland
Jr W L Hinman
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 SE397908B publication Critical patent/SE397908B/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
    • 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)
  • Feedback Control In General (AREA)
  • Radio Relay Systems (AREA)
SE7313551A 1972-10-04 1973-10-04 RELAY PROTECTION SYSTEM SE397908B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29503172A 1972-10-04 1972-10-04

Publications (1)

Publication Number Publication Date
SE397908B true SE397908B (en) 1977-11-21

Family

ID=23135936

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7313551A SE397908B (en) 1972-10-04 1973-10-04 RELAY PROTECTION SYSTEM

Country Status (9)

Country Link
JP (1) JPS6147045B2 (en)
AR (1) AR207747A1 (en)
BR (1) BR7307655D0 (en)
CA (1) CA1025992A (en)
FR (1) FR2202390B1 (en)
GB (1) GB1449682A (en)
IN (1) IN140736B (en)
IT (1) IT997405B (en)
SE (1) SE397908B (en)

Families Citing this family (1)

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

Also Published As

Publication number Publication date
JPS49132540A (en) 1974-12-19
AU6102873A (en) 1975-04-10
FR2202390B1 (en) 1980-07-25
JPS6147045B2 (en) 1986-10-17
CA1025992A (en) 1978-02-07
AR207747A1 (en) 1976-10-29
IN140736B (en) 1976-12-18
IT997405B (en) 1975-12-30
BR7307655D0 (en) 1974-08-22
GB1449682A (en) 1976-09-15
FR2202390A1 (en) 1974-05-03

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