JPS56141776A - Protection circuit of thyristor - Google Patents

Protection circuit of thyristor

Info

Publication number
JPS56141776A
JPS56141776A JP4440380A JP4440380A JPS56141776A JP S56141776 A JPS56141776 A JP S56141776A JP 4440380 A JP4440380 A JP 4440380A JP 4440380 A JP4440380 A JP 4440380A JP S56141776 A JPS56141776 A JP S56141776A
Authority
JP
Japan
Prior art keywords
circuit
command
thyristor
flowing
gate
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
JP4440380A
Other languages
Japanese (ja)
Other versions
JPS6231589B2 (en
Inventor
Yuzuru Yonehata
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 JP4440380A priority Critical patent/JPS56141776A/en
Publication of JPS56141776A publication Critical patent/JPS56141776A/en
Publication of JPS6231589B2 publication Critical patent/JPS6231589B2/ja
Granted 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
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Control Of Direct Current Motors (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To constitute easily a current energy discharging circuit for the protection of thyristors by a method wherein only a thyristor bridge circuit on the current flowing side at present is selectively short-circuited just before an AC circuit-breaker is made to open. CONSTITUTION:The thyristor protection circuit 9 is provided. When a gate-ON command of the positive or the negative side is flowing, the thyristor protection circuit 9 short-circuits selectively only the thyristor bridge circuit on the side wherein the gate-ON command is flowing when an open command of the AC circuit-breaker 21 is sent out. When the gate-ON command of the positive or the negative side is not flowing on the contrary, only the thyristor bridge circuit on the side wherein the gate-ON command was flowing up to that time is short-circuited selectively when the open command of the AC circuit-breaker 21 is sent out.
JP4440380A 1980-04-03 1980-04-03 Protection circuit of thyristor Granted JPS56141776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4440380A JPS56141776A (en) 1980-04-03 1980-04-03 Protection circuit of thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4440380A JPS56141776A (en) 1980-04-03 1980-04-03 Protection circuit of thyristor

Publications (2)

Publication Number Publication Date
JPS56141776A true JPS56141776A (en) 1981-11-05
JPS6231589B2 JPS6231589B2 (en) 1987-07-09

Family

ID=12690536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4440380A Granted JPS56141776A (en) 1980-04-03 1980-04-03 Protection circuit of thyristor

Country Status (1)

Country Link
JP (1) JPS56141776A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63189990U (en) * 1987-05-29 1988-12-07
JPH0526775U (en) * 1991-09-18 1993-04-06 株式会社小糸製作所 Gripper with built-in heater for motorcycles

Also Published As

Publication number Publication date
JPS6231589B2 (en) 1987-07-09

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