FR860637A - Fast acting differential device to protect transformers - Google Patents

Fast acting differential device to protect transformers

Info

Publication number
FR860637A
FR860637A FR860637DA FR860637A FR 860637 A FR860637 A FR 860637A FR 860637D A FR860637D A FR 860637DA FR 860637 A FR860637 A FR 860637A
Authority
FR
France
Prior art keywords
differential device
fast acting
acting differential
protect transformers
transformers
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR860637A publication Critical patent/FR860637A/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)
FR860637D 1939-10-06 1939-10-06 Fast acting differential device to protect transformers Expired FR860637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR860637T 1939-10-06

Publications (1)

Publication Number Publication Date
FR860637A true FR860637A (en) 1941-01-20

Family

ID=9334857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR860637D Expired FR860637A (en) 1939-10-06 1939-10-06 Fast acting differential device to protect transformers

Country Status (1)

Country Link
FR (1) FR860637A (en)

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