DE1638169C3 - Richtungsvergleichsschutzeinrichtung für ein- oder mehrphasige Wechselstromsysteme - Google Patents

Richtungsvergleichsschutzeinrichtung für ein- oder mehrphasige Wechselstromsysteme

Info

Publication number
DE1638169C3
DE1638169C3 DE1638169A DEW0045511A DE1638169C3 DE 1638169 C3 DE1638169 C3 DE 1638169C3 DE 1638169 A DE1638169 A DE 1638169A DE W0045511 A DEW0045511 A DE W0045511A DE 1638169 C3 DE1638169 C3 DE 1638169C3
Authority
DE
Germany
Prior art keywords
transistor
current
secondary winding
transformer
transistors
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
DE1638169A
Other languages
German (de)
English (en)
Other versions
DE1638169A1 (de
DE1638169B2 (de
Inventor
John E. Mountain Lakes Hagberg
Herbert W. East Orange Lensner
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 DE1638169A1 publication Critical patent/DE1638169A1/de
Publication of DE1638169B2 publication Critical patent/DE1638169B2/de
Application granted granted Critical
Publication of DE1638169C3 publication Critical patent/DE1638169C3/de
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
    • H02H3/305—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 current comparison

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE1638169A 1967-01-18 1968-01-13 Richtungsvergleichsschutzeinrichtung für ein- oder mehrphasige Wechselstromsysteme Expired DE1638169C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US610049A US3497772A (en) 1967-01-18 1967-01-18 Pilot wire protective arrangement for alternating current system wherein relay operating and restraint signals are derived during half cycles of opposite polarities

Publications (3)

Publication Number Publication Date
DE1638169A1 DE1638169A1 (de) 1971-06-09
DE1638169B2 DE1638169B2 (de) 1973-06-07
DE1638169C3 true DE1638169C3 (de) 1973-12-20

Family

ID=24443423

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1638169A Expired DE1638169C3 (de) 1967-01-18 1968-01-13 Richtungsvergleichsschutzeinrichtung für ein- oder mehrphasige Wechselstromsysteme

Country Status (7)

Country Link
US (1) US3497772A (en:Method)
JP (1) JPS4534748B1 (en:Method)
AT (1) AT275639B (en:Method)
BE (1) BE709528A (en:Method)
CH (1) CH468099A (en:Method)
DE (1) DE1638169C3 (en:Method)
FR (1) FR1553238A (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098417B (en) * 1981-05-09 1984-10-24 Northern Eng Ind Pilot wire line protection systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2307500A (en) * 1939-06-10 1943-01-05 Westinghouse Electric & Mfg Co Protective relay system
US2696573A (en) * 1951-04-09 1954-12-07 Reyrolle A & Co Ltd Electric signaling arrangement for protective or other purposes
US3275889A (en) * 1958-06-13 1966-09-27 Westinghouse Electric Corp Protection network
GB1062154A (en) * 1962-09-14 1967-03-15 English Electric Co Ltd Polyphase protective relay circuits
GB1090901A (en) * 1964-02-13 1967-11-15 English Electric Co Ltd Protective relay apparatus

Also Published As

Publication number Publication date
DE1638169A1 (de) 1971-06-09
FR1553238A (en:Method) 1969-01-10
AT275639B (de) 1969-10-27
JPS4534748B1 (en:Method) 1970-11-07
US3497772A (en) 1970-02-24
DE1638169B2 (de) 1973-06-07
BE709528A (en:Method) 1968-05-30
CH468099A (de) 1969-01-31

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee