CH611466A5 - - Google Patents

Info

Publication number
CH611466A5
CH611466A5 CH62076A CH62076A CH611466A5 CH 611466 A5 CH611466 A5 CH 611466A5 CH 62076 A CH62076 A CH 62076A CH 62076 A CH62076 A CH 62076A CH 611466 A5 CH611466 A5 CH 611466A5
Authority
CH
Switzerland
Application number
CH62076A
Inventor
Fumio Andow
Original Assignee
Tokyo Shibaura Electric Co
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 Tokyo Shibaura Electric Co filed Critical Tokyo Shibaura Electric Co
Publication of CH611466A5 publication Critical patent/CH611466A5/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
    • 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
    • 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)
CH62076A 1975-01-20 1976-01-20 CH611466A5 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50007894A JPS5183147A (nl) 1975-01-20 1975-01-20

Publications (1)

Publication Number Publication Date
CH611466A5 true CH611466A5 (nl) 1979-05-31

Family

ID=11678276

Family Applications (1)

Application Number Title Priority Date Filing Date
CH62076A CH611466A5 (nl) 1975-01-20 1976-01-20

Country Status (6)

Country Link
US (1) US4056839A (nl)
JP (1) JPS5183147A (nl)
AU (1) AU503571B2 (nl)
CH (1) CH611466A5 (nl)
GB (3) GB1544431A (nl)
SE (1) SE432327B (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283678A (en) * 1978-06-05 1981-08-11 Watteredge-Uniflex, Inc. Cable condition analyzing system for electric arc furnace conductors
US5790418A (en) * 1995-10-17 1998-08-04 Schweitzer Engineering Laboratories, Inc. Adaptive polarizing memory voltage time constant
US6330141B1 (en) 2000-06-13 2001-12-11 Eaton Corporation Electronic protective relay with variable and fixed delay tally time of current protection
US6717394B2 (en) 2002-03-21 2004-04-06 Eaton Corporation Method and apparatus for determining frequency of an alternating current signal of an electric power system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176018A (en) * 1967-08-03 1970-01-01 English Electric Co Ltd Improvements in Definite-Time Relays.
US3657605A (en) * 1969-07-02 1972-04-18 Ass Elect Ind Overcurrent transient non-responsive trip device
US3602776A (en) * 1970-04-29 1971-08-31 Westinghouse Electric Corp Quick resetting apparatus
US3893008A (en) * 1972-10-04 1975-07-01 Westinghouse Electric Corp Segregated phase comparison relaying apparatus
CH566009A5 (nl) * 1973-12-14 1975-08-29 Secheron Atel
SE378950B (nl) * 1974-01-07 1975-09-15 Asea Ab

Also Published As

Publication number Publication date
AU503571B2 (en) 1979-09-13
SE432327B (sv) 1984-03-26
US4056839A (en) 1977-11-01
AU1037076A (en) 1977-07-28
SE7600465L (sv) 1976-07-21
GB1544433A (en) 1979-04-19
GB1544432A (en) 1979-04-19
GB1544431A (en) 1979-04-19
JPS5183147A (nl) 1976-07-21

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Legal Events

Date Code Title Description
PL Patent ceased