JPS576571A - Protection for inverter device - Google Patents

Protection for inverter device

Info

Publication number
JPS576571A
JPS576571A JP7865180A JP7865180A JPS576571A JP S576571 A JPS576571 A JP S576571A JP 7865180 A JP7865180 A JP 7865180A JP 7865180 A JP7865180 A JP 7865180A JP S576571 A JPS576571 A JP S576571A
Authority
JP
Japan
Prior art keywords
circuit
gto
short
overcurrent
inverting section
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
JP7865180A
Other languages
Japanese (ja)
Inventor
Kazuo Shoda
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.)
Yuasa Corp
Original Assignee
Yuasa Battery Corp
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 Yuasa Battery Corp filed Critical Yuasa Battery Corp
Priority to JP7865180A priority Critical patent/JPS576571A/en
Publication of JPS576571A publication Critical patent/JPS576571A/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
    • H02H7/10—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 converters; for rectifiers
    • H02H7/12—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 converters; for rectifiers for static converters or rectifiers
    • H02H7/122—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 converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
    • H02H7/1227—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 converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To protect a gate turnoff thyristor (GTO) from an overcurrent by a method wherein an overcurrent protecting thyristor is turned on by a DC reactor and an overcurrent detection, and a power inverting section is turned off. CONSTITUTION:When a short-circuit is generated at the power inverting section 2, this short-circuit current is suppressed by the DC reactor 20a, the short-circuit current is also detectd by an overcurrent detecting circuit 4, a circuit breaker 19 is broken by the operation of a controlling circuit 5 and an overcurrent protecting circuit 7, and at the same time, the short-circuit current is branched off by the turn on of overcurrent protecting thyristor 13 and the flowing in of the short-circuit current to the GTO on the power inverting section 2 is reduced. Besides, a gate turnoff signal is supplied to all the GTO's on the power inverting section 2 by the controlling circuit 5 and the power inverting section 2 is turned off. Thus, the GTO's are protected safely and securely and the miniaturized and light-weighted GTO invertor device can be obtained.
JP7865180A 1980-06-10 1980-06-10 Protection for inverter device Pending JPS576571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7865180A JPS576571A (en) 1980-06-10 1980-06-10 Protection for inverter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7865180A JPS576571A (en) 1980-06-10 1980-06-10 Protection for inverter device

Publications (1)

Publication Number Publication Date
JPS576571A true JPS576571A (en) 1982-01-13

Family

ID=13667757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7865180A Pending JPS576571A (en) 1980-06-10 1980-06-10 Protection for inverter device

Country Status (1)

Country Link
JP (1) JPS576571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141683A (en) * 1982-02-16 1983-08-23 Toshiba Corp Dc/ac power converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141683A (en) * 1982-02-16 1983-08-23 Toshiba Corp Dc/ac power converter
JPH0324152B2 (en) * 1982-02-16 1991-04-02 Tokyo Shibaura Electric Co

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