JPS5778A - Misfiring detector in three-phase bridge inverter - Google Patents

Misfiring detector in three-phase bridge inverter

Info

Publication number
JPS5778A
JPS5778A JP7121580A JP7121580A JPS5778A JP S5778 A JPS5778 A JP S5778A JP 7121580 A JP7121580 A JP 7121580A JP 7121580 A JP7121580 A JP 7121580A JP S5778 A JPS5778 A JP S5778A
Authority
JP
Japan
Prior art keywords
misfiring
inverter
transformer
phase
connect
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
JP7121580A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Hosaka
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP7121580A priority Critical patent/JPS5778A/en
Publication of JPS5778A publication Critical patent/JPS5778A/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 perform the misfiring detection in inverter elements by branching the output circuit in an inverter to connect to the primary winding of a detecting three- phase transformer in delta-connection wherein the secondary winding of each phase in the transformer is connected in series each other and the generated voltage across the opposite ends is detected. CONSTITUTION:The output circuit in an inverter 1 is branched to connect to the primary winding of a detecting three-phase transformer 2 in delta connection. And the secondary winding of each phase in the transformer 2 is connected in series each other to connect the opposite ends of the secondary winding to the input terminal in a comparator 4 and zero electric potentil through a rectifier 3. In this composition, the output voltage will vary if misfiring exists in either of the composed elements in the inverter. And the sum of line voltages and that of the secondary voltages of the transformer 2 do not reach zero. Therefore, the misfiring of inverter elements can be detected by sensing the generated voltage through the comparator 4.
JP7121580A 1980-05-28 1980-05-28 Misfiring detector in three-phase bridge inverter Pending JPS5778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7121580A JPS5778A (en) 1980-05-28 1980-05-28 Misfiring detector in three-phase bridge inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7121580A JPS5778A (en) 1980-05-28 1980-05-28 Misfiring detector in three-phase bridge inverter

Publications (1)

Publication Number Publication Date
JPS5778A true JPS5778A (en) 1982-01-05

Family

ID=13454225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7121580A Pending JPS5778A (en) 1980-05-28 1980-05-28 Misfiring detector in three-phase bridge inverter

Country Status (1)

Country Link
JP (1) JPS5778A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0556071U (en) * 1991-12-26 1993-07-27 蛇の目ミシン工業株式会社 Synchronous feed presser of the sewing machine
JPH0570477U (en) * 1992-03-09 1993-09-24 蛇の目ミシン工業株式会社 Ruler bar holding device for synchronized feed presser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0556071U (en) * 1991-12-26 1993-07-27 蛇の目ミシン工業株式会社 Synchronous feed presser of the sewing machine
JPH0570477U (en) * 1992-03-09 1993-09-24 蛇の目ミシン工業株式会社 Ruler bar holding device for synchronized feed presser

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