GB554210A - Arrangement in electric differential protection devices - Google Patents

Arrangement in electric differential protection devices

Info

Publication number
GB554210A
GB554210A GB5044/42A GB504442A GB554210A GB 554210 A GB554210 A GB 554210A GB 5044/42 A GB5044/42 A GB 5044/42A GB 504442 A GB504442 A GB 504442A GB 554210 A GB554210 A GB 554210A
Authority
GB
United Kingdom
Prior art keywords
current
currents
relay
contacts
difference
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
GB5044/42A
Other languages
English (en)
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB554210A publication Critical patent/GB554210A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H7/04—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 for transformers
    • H02H7/045—Differential protection of transformers
    • H02H7/0455—Differential protection of transformers taking into account saturation of current transformers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB5044/42A 1941-05-05 1942-04-16 Arrangement in electric differential protection devices Expired GB554210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE228757X 1941-05-05

Publications (1)

Publication Number Publication Date
GB554210A true GB554210A (en) 1943-06-24

Family

ID=20305632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5044/42A Expired GB554210A (en) 1941-05-05 1942-04-16 Arrangement in electric differential protection devices

Country Status (4)

Country Link
CH (1) CH228757A (fr)
DE (1) DE762983C (fr)
FR (1) FR881766A (fr)
GB (1) GB554210A (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE612747C (de) * 1928-08-04 1935-05-03 Siemens & Halske Akt Ges Differentialschutzanordnung fuer Teile einer elektrischen Anlage

Also Published As

Publication number Publication date
CH228757A (de) 1943-09-15
FR881766A (fr) 1943-05-07
DE762983C (de) 1953-06-22

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