AT326751B - CIRCUIT FOR PROTECTING A CIRCUIT, IN PARTICULAR THE ROTOR CIRCUIT OF AN ELECTRIC MACHINE, AGAINST EARTH FAULT - Google Patents

CIRCUIT FOR PROTECTING A CIRCUIT, IN PARTICULAR THE ROTOR CIRCUIT OF AN ELECTRIC MACHINE, AGAINST EARTH FAULT

Info

Publication number
AT326751B
AT326751B AT266974A AT266974A AT326751B AT 326751 B AT326751 B AT 326751B AT 266974 A AT266974 A AT 266974A AT 266974 A AT266974 A AT 266974A AT 326751 B AT326751 B AT 326751B
Authority
AT
Austria
Prior art keywords
circuit
protecting
electric machine
earth fault
rotor
Prior art date
Application number
AT266974A
Other languages
German (de)
Other versions
ATA266974A (en
Original Assignee
Bec Ag Brown Boveri & Cie
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 Bec Ag Brown Boveri & Cie filed Critical Bec Ag Brown Boveri & Cie
Publication of ATA266974A publication Critical patent/ATA266974A/en
Application granted granted Critical
Publication of AT326751B publication Critical patent/AT326751B/en

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
    • H02H7/0805—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 for synchronous motors
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
AT266974A 1973-05-10 1974-04-01 CIRCUIT FOR PROTECTING A CIRCUIT, IN PARTICULAR THE ROTOR CIRCUIT OF AN ELECTRIC MACHINE, AGAINST EARTH FAULT AT326751B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH660073A CH558097A (en) 1973-05-10 1973-05-10 CIRCUIT ARRANGEMENT FOR PROTECTING THE ROTOR CIRCUIT OF AN ELECTRIC MACHINE AGAINST EARTH FAULT.

Publications (2)

Publication Number Publication Date
ATA266974A ATA266974A (en) 1975-03-15
AT326751B true AT326751B (en) 1975-12-29

Family

ID=4312139

Family Applications (1)

Application Number Title Priority Date Filing Date
AT266974A AT326751B (en) 1973-05-10 1974-04-01 CIRCUIT FOR PROTECTING A CIRCUIT, IN PARTICULAR THE ROTOR CIRCUIT OF AN ELECTRIC MACHINE, AGAINST EARTH FAULT

Country Status (7)

Country Link
AT (1) AT326751B (en)
BE (1) BE814717A (en)
CH (1) CH558097A (en)
DE (1) DE2327572C3 (en)
DK (1) DK142597B (en)
GB (1) GB1467674A (en)
SE (1) SE388326B (en)

Also Published As

Publication number Publication date
GB1467674A (en) 1977-03-16
BE814717A (en) 1974-09-02
DK142597B (en) 1980-11-24
DE2327572C3 (en) 1979-12-13
DE2327572B2 (en) 1979-04-19
DK142597C (en) 1981-08-03
SE388326B (en) 1976-09-27
DE2327572A1 (en) 1974-11-14
CH558097A (en) 1975-01-15
ATA266974A (en) 1975-03-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee