JPS53103138A - Thyristor fault detector - Google Patents

Thyristor fault detector

Info

Publication number
JPS53103138A
JPS53103138A JP1744377A JP1744377A JPS53103138A JP S53103138 A JPS53103138 A JP S53103138A JP 1744377 A JP1744377 A JP 1744377A JP 1744377 A JP1744377 A JP 1744377A JP S53103138 A JPS53103138 A JP S53103138A
Authority
JP
Japan
Prior art keywords
fault detector
thyristor
thyristor fault
terminal
voltage
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
JP1744377A
Other languages
Japanese (ja)
Inventor
Mutsuhiro Terunuma
Kiyoya Shima
Toshiaki Kurosawa
Takeyoshi Ando
Hiromi Inaba
Hiroaki Kuroba
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 JP1744377A priority Critical patent/JPS53103138A/en
Publication of JPS53103138A publication Critical patent/JPS53103138A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect a thyristor failure using the voltage appearing between the neutral point of a low voltage AC power supply and the DC terminal of a bridge circuit by applying the AC which is lower than the power voltage of a power converter to the AC terminal of a thyristor bridge circuit.
COPYRIGHT: (C)1978,JPO&Japio
JP1744377A 1977-02-19 1977-02-19 Thyristor fault detector Pending JPS53103138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1744377A JPS53103138A (en) 1977-02-19 1977-02-19 Thyristor fault detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1744377A JPS53103138A (en) 1977-02-19 1977-02-19 Thyristor fault detector

Publications (1)

Publication Number Publication Date
JPS53103138A true JPS53103138A (en) 1978-09-08

Family

ID=11944158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1744377A Pending JPS53103138A (en) 1977-02-19 1977-02-19 Thyristor fault detector

Country Status (1)

Country Link
JP (1) JPS53103138A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636929A (en) * 1985-03-19 1987-01-13 Mitsubishi Denki Kabushiki Kaisha Abnormal state detecting circuit of inverter
JPS6464567A (en) * 1987-09-02 1989-03-10 Hitachi Ltd Inverter controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636929A (en) * 1985-03-19 1987-01-13 Mitsubishi Denki Kabushiki Kaisha Abnormal state detecting circuit of inverter
JPS6464567A (en) * 1987-09-02 1989-03-10 Hitachi Ltd Inverter controller

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