AU6102873A - Improvements in or relating to segregated phase comparison relaying apparatus - Google Patents

Improvements in or relating to segregated phase comparison relaying apparatus

Info

Publication number
AU6102873A
AU6102873A AU61028/73A AU6102873A AU6102873A AU 6102873 A AU6102873 A AU 6102873A AU 61028/73 A AU61028/73 A AU 61028/73A AU 6102873 A AU6102873 A AU 6102873A AU 6102873 A AU6102873 A AU 6102873A
Authority
AU
Australia
Prior art keywords
relating
phase comparison
relaying apparatus
segregated phase
comparison relaying
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
AU61028/73A
Other versions
AU489726B2 (en
Inventor
JR. and WALTER LIVINGSTON HINMAN WILLIAM ALFRED STRICKLAND, JR
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.)
CBS 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
Application granted granted Critical
Publication of AU6102873A publication Critical patent/AU6102873A/en
Publication of AU489726B2 publication Critical patent/AU489726B2/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
    • H02H3/26—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)
AU61028/73A 1973-10-04 Improvements in or relating to segregated phase comparison relaying apparatus Expired AU489726B2 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
AU6102873A true AU6102873A (en) 1975-04-10
AU489726B2 AU489726B2 (en) 1975-04-10

Family

ID=

Also Published As

Publication number Publication date
JPS49132540A (en) 1974-12-19
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
SE397908B (en) 1977-11-21
FR2202390A1 (en) 1974-05-03

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