GB186010A - Improvements in and relating to electric circuit controllers - Google Patents

Improvements in and relating to electric circuit controllers

Info

Publication number
GB186010A
GB186010A GB607322A GB607322A GB186010A GB 186010 A GB186010 A GB 186010A GB 607322 A GB607322 A GB 607322A GB 607322 A GB607322 A GB 607322A GB 186010 A GB186010 A GB 186010A
Authority
GB
United Kingdom
Prior art keywords
main switches
relating
electric circuit
circuit controllers
relays
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
GB607322A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB607322A priority Critical patent/GB186010A/en
Publication of GB186010A publication Critical patent/GB186010A/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
    • H02H7/08—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 dynamo-electric motors
    • H02H7/085—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 dynamo-electric motors against excessive load

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

186,010. British Thomson - Houston Co., Ltd., (General Electric Co.). March 1, 1922. Protective systems comprise electromagnetically closed main switches 10, 11 opened by the action of overload relays 21, 22 and retained open by additional relays 23, 24 having their coils connected across the terminals of the main switches. The main switches are kept open until all the protected machines 16, 17, 18 are locally cut-out or have sufficient resistance inserted in series.
GB607322A 1922-03-01 1922-03-01 Improvements in and relating to electric circuit controllers Expired GB186010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB607322A GB186010A (en) 1922-03-01 1922-03-01 Improvements in and relating to electric circuit controllers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB607322A GB186010A (en) 1922-03-01 1922-03-01 Improvements in and relating to electric circuit controllers

Publications (1)

Publication Number Publication Date
GB186010A true GB186010A (en) 1922-09-21

Family

ID=9807890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB607322A Expired GB186010A (en) 1922-03-01 1922-03-01 Improvements in and relating to electric circuit controllers

Country Status (1)

Country Link
GB (1) GB186010A (en)

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