JPS5792A - Controlling circuit for electric motor - Google Patents

Controlling circuit for electric motor

Info

Publication number
JPS5792A
JPS5792A JP7015580A JP7015580A JPS5792A JP S5792 A JPS5792 A JP S5792A JP 7015580 A JP7015580 A JP 7015580A JP 7015580 A JP7015580 A JP 7015580A JP S5792 A JPS5792 A JP S5792A
Authority
JP
Japan
Prior art keywords
contactor
motor
commutation failure
regenerating
turned
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.)
Pending
Application number
JP7015580A
Other languages
Japanese (ja)
Inventor
Seiki Kikuchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7015580A priority Critical patent/JPS5792A/en
Publication of JPS5792A publication Critical patent/JPS5792A/en
Pending 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
    • H02H7/0833—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 electric motors with control arrangements
    • H02H7/0838—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 electric motors with control arrangements with H-bridge circuit

Landscapes

  • Stopping Of Electric Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To put on the brake positively, by detecting commutation failure of a main thyrister and releasing a regenerating contactor. CONSTITUTION:A contact 19 of a regenerating contactor 5 is connected in series with an armature of an electric motor 2, and a coil 22 is connected with a collector of a transistor (Tr)12. To a forwarding contactor 4A and a backward contactor 4B, a chopper circuit 3 is connected and a commutation failure protecting circuit 9 is also connected through Tr11. By doing so, when a foward-backward turn switch 17 or a switch 18 is closed and commutation failure occurred in the chopper circuit 3 during operation of the motor 2 by the forward-backward contactor coil 20 or 21, Tr11, Tr11 becomes turned off by an commutation failure protecting circuit 9, and contactors 4A and 4B are also turned off, so that current to the motor 2 is cut off. At the same time, Tr12 is turned on, and the contact 19 is released by a regenerating contactor coil 22 to cut off current passage to the motor 2.
JP7015580A 1980-05-28 1980-05-28 Controlling circuit for electric motor Pending JPS5792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7015580A JPS5792A (en) 1980-05-28 1980-05-28 Controlling circuit for electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7015580A JPS5792A (en) 1980-05-28 1980-05-28 Controlling circuit for electric motor

Publications (1)

Publication Number Publication Date
JPS5792A true JPS5792A (en) 1982-01-05

Family

ID=13423397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7015580A Pending JPS5792A (en) 1980-05-28 1980-05-28 Controlling circuit for electric motor

Country Status (1)

Country Link
JP (1) JPS5792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015119565B4 (en) 2014-11-13 2022-07-14 Toyota Jidosha Kabushiki Kaisha Method for controlling an external electric power supply system of a fuel cell-mounted vehicle and external electric power supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015119565B4 (en) 2014-11-13 2022-07-14 Toyota Jidosha Kabushiki Kaisha Method for controlling an external electric power supply system of a fuel cell-mounted vehicle and external electric power supply system

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