JPS563579A - Detecting method and device for shortcircuit at gto inverter arm - Google Patents

Detecting method and device for shortcircuit at gto inverter arm

Info

Publication number
JPS563579A
JPS563579A JP7815479A JP7815479A JPS563579A JP S563579 A JPS563579 A JP S563579A JP 7815479 A JP7815479 A JP 7815479A JP 7815479 A JP7815479 A JP 7815479A JP S563579 A JPS563579 A JP S563579A
Authority
JP
Japan
Prior art keywords
shortcircuit
arm
detected
circuit
side current
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.)
Granted
Application number
JP7815479A
Other languages
Japanese (ja)
Other versions
JPS6038951B2 (en
Inventor
Yasuo Matsuda
Kazuo Honda
Takeo Maeda
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 JP54078154A priority Critical patent/JPS6038951B2/en
Priority to US06/160,174 priority patent/US4384248A/en
Publication of JPS563579A publication Critical patent/JPS563579A/en
Publication of JPS6038951B2 publication Critical patent/JPS6038951B2/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
    • H02H7/10—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
    • H02H7/1225—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 internal faults, e.g. shoot-through
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Protection Of Static Devices (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To enable arm's shortcircuit to be detected with rapidity and sureness, by utilizing voltage of a flow-limiting reactor as a detected value of arm's shortcircuit. CONSTITUTION:An inverter arm is composed of a GTO, a P-side current-limiting reactor 50 and an N-side current-limiting detected by insulation detectors 52 and 53, and the outputs are impressed onto an AND circuit, and further, th output signals are impressed onto a pulse width discriminator 55. This discriminator 55, in order to discriminate if the AND circuit's output signal is in false shortcircuit condition, judges whether or not it is more than a certain detection-idling time T1 and detects arm's shortcircuit. And, by providing such a device as a memory circuit 56, an occurred shortcircuit detecting signal is memorized by the device for the purpose of being shown on an indicator, etc. at later time.
JP54078154A 1979-06-22 1979-06-22 GTO inverter arm short circuit detection method Expired JPS6038951B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54078154A JPS6038951B2 (en) 1979-06-22 1979-06-22 GTO inverter arm short circuit detection method
US06/160,174 US4384248A (en) 1979-06-22 1980-06-17 Method and apparatus for detecting shortcircuit in arm of GTO inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54078154A JPS6038951B2 (en) 1979-06-22 1979-06-22 GTO inverter arm short circuit detection method

Publications (2)

Publication Number Publication Date
JPS563579A true JPS563579A (en) 1981-01-14
JPS6038951B2 JPS6038951B2 (en) 1985-09-03

Family

ID=13653990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54078154A Expired JPS6038951B2 (en) 1979-06-22 1979-06-22 GTO inverter arm short circuit detection method

Country Status (1)

Country Link
JP (1) JPS6038951B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004979A1 (en) * 2007-06-29 2009-01-08 The Kansai Electric Power Co., Inc. Power conversion device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636251U (en) * 1986-06-30 1988-01-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004979A1 (en) * 2007-06-29 2009-01-08 The Kansai Electric Power Co., Inc. Power conversion device
JP2009011117A (en) * 2007-06-29 2009-01-15 Kansai Electric Power Co Inc:The Power conversion device

Also Published As

Publication number Publication date
JPS6038951B2 (en) 1985-09-03

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