GB355940A - - Google Patents

Info

Publication number
GB355940A
GB355940A GB25055/30A GB2505530A GB355940A GB 355940 A GB355940 A GB 355940A GB 25055/30 A GB25055/30 A GB 25055/30A GB 2505530 A GB2505530 A GB 2505530A GB 355940 A GB355940 A GB 355940A
Authority
GB
United Kingdom
Prior art keywords
winding
transformer
currents
circuit
restraining
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
GB25055/30A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB355940A publication Critical patent/GB355940A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Protection Of Transformers (AREA)
GB25055/30A 1929-08-21 1930-08-21 Expired GB355940A (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US355940XA 1929-08-21 1929-08-21
US699766XA 1929-08-21 1929-08-21
US387523A US1787277A (en) 1929-08-21 1929-08-21 Protective arrangement

Publications (1)

Publication Number Publication Date
GB355940A true GB355940A (enrdf_load_stackoverflow) 1931-09-03

Family

ID=50572362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25055/30A Expired GB355940A (enrdf_load_stackoverflow) 1929-08-21 1930-08-21

Country Status (3)

Country Link
US (1) US1787277A (enrdf_load_stackoverflow)
FR (1) FR699766A (enrdf_load_stackoverflow)
GB (1) GB355940A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744096C (de) * 1939-12-20 1944-01-08 Aeg Einrichtung zur Verhinderung von Fehlausloesungen von Schutzeinrichtungen beim Einschalten induktiver Anlageteile
DE744451C (de) * 1940-06-06 1944-01-15 Aeg Differentialschutzeinrichtung
US2422288A (en) * 1944-06-02 1947-06-17 Western Electric Co Apparatus for testing electrical insulation
US2422309A (en) * 1945-03-10 1947-06-17 Automatic Elect Lab Distortion correcting impulse repeater
US2574403A (en) * 1948-04-19 1951-11-06 Gen Electric Differential protective system
US2683242A (en) * 1949-02-16 1954-07-06 Jefferson Electric Co Control device and lighting system
US2528240A (en) * 1949-12-10 1950-10-31 Gen Electric Transformer differential relay
US2896127A (en) * 1956-06-26 1959-07-21 Gen Electric Temperature responsive protective relay

Also Published As

Publication number Publication date
US1787277A (en) 1930-12-30
FR699766A (fr) 1931-02-19

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