JPS56125967A - Protecting device for parallel redundancy inverter system - Google Patents

Protecting device for parallel redundancy inverter system

Info

Publication number
JPS56125967A
JPS56125967A JP2938480A JP2938480A JPS56125967A JP S56125967 A JPS56125967 A JP S56125967A JP 2938480 A JP2938480 A JP 2938480A JP 2938480 A JP2938480 A JP 2938480A JP S56125967 A JPS56125967 A JP S56125967A
Authority
JP
Japan
Prior art keywords
inverter
condenser
load
filter
shortcircuit
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
JP2938480A
Other languages
Japanese (ja)
Inventor
Takao Kawabata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2938480A priority Critical patent/JPS56125967A/en
Publication of JPS56125967A publication Critical patent/JPS56125967A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Landscapes

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

Abstract

PURPOSE:To enable the separation of an inverter from a load by applying an OFF signal to an interrupter when an electric current flowing through a filter condenser becomes higher than a set value and thus rapidly detecting an accident of the shortcircuit of the condenser. CONSTITUTION:There are provided a current transformer 9 for detecting an electric current flowing through the condenser 3 of the output waveform shaping filter of an inverter 1 and an overcurrent detector 10 for producing an output when the detected current of the transformer 9 becomes higher than a predetermined value. An interrupter 4 is operated by the output signal from the detector 10 to thus separate the inverter 1 from a load bus line 5. Thus, the accident of a shortcircuit of the condenser 3 for the filter can be effectively and rapidly detected, the inverter 1 is separated from the load for a short time, and stable current can be applied to the load without adversely influencing the other undamaged circuits.
JP2938480A 1980-03-07 1980-03-07 Protecting device for parallel redundancy inverter system Pending JPS56125967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2938480A JPS56125967A (en) 1980-03-07 1980-03-07 Protecting device for parallel redundancy inverter system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2938480A JPS56125967A (en) 1980-03-07 1980-03-07 Protecting device for parallel redundancy inverter system

Publications (1)

Publication Number Publication Date
JPS56125967A true JPS56125967A (en) 1981-10-02

Family

ID=12274635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2938480A Pending JPS56125967A (en) 1980-03-07 1980-03-07 Protecting device for parallel redundancy inverter system

Country Status (1)

Country Link
JP (1) JPS56125967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009089490A (en) * 2007-09-28 2009-04-23 Fujitsu Telecom Networks Ltd Power supply abnormality detection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009089490A (en) * 2007-09-28 2009-04-23 Fujitsu Telecom Networks Ltd Power supply abnormality detection circuit

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