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GB192290A - Improved protective means for electrical switchgear - Google Patents

Improved protective means for electrical switchgear

Info

Publication number
GB192290A
GB192290A GB346122A GB346122A GB192290A GB 192290 A GB192290 A GB 192290A GB 346122 A GB346122 A GB 346122A GB 346122 A GB346122 A GB 346122A GB 192290 A GB192290 A GB 192290A
Authority
GB
United Kingdom
Prior art keywords
conductor
protective means
electrical switchgear
improved protective
transformer
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
GB346122A
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.)
ARTHUR HILTON HIGGS
Ferranti International PLC
Original Assignee
ARTHUR HILTON HIGGS
Ferranti PLC
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 ARTHUR HILTON HIGGS, Ferranti PLC filed Critical ARTHUR HILTON HIGGS
Priority to GB346122A priority Critical patent/GB192290A/en
Publication of GB192290A publication Critical patent/GB192290A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

192,290. Higgs, A. H., and Ferranti, Ltd. Feb. 6, 1922. Addition to 191,971. Switchboards, protective arrangements. - In protective arrangements for switchgear, as described in the parent Specification, but where the cables supplied through such gear are equipped with core-balancing type current transformers, the earth conductor f is taken through the core of the transformer g of the cable protective gear. The relay of the transformer g trips the oil-switch a when excess current flows in the conductor f, due either to a fault in the cable or to a breakdown of the insulation of the apparatus. There may also be provided a connection to conductor f from the secondaries of transformers c and d.
GB346122A 1922-02-06 1922-02-06 Improved protective means for electrical switchgear Expired GB192290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB346122A GB192290A (en) 1922-02-06 1922-02-06 Improved protective means for electrical switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346122A GB192290A (en) 1922-02-06 1922-02-06 Improved protective means for electrical switchgear

Publications (1)

Publication Number Publication Date
GB192290A true GB192290A (en) 1923-02-01

Family

ID=9758752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB346122A Expired GB192290A (en) 1922-02-06 1922-02-06 Improved protective means for electrical switchgear

Country Status (1)

Country Link
GB (1) GB192290A (en)

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