JPS5653573A - Protection for thyristor converter - Google Patents

Protection for thyristor converter

Info

Publication number
JPS5653573A
JPS5653573A JP12941079A JP12941079A JPS5653573A JP S5653573 A JPS5653573 A JP S5653573A JP 12941079 A JP12941079 A JP 12941079A JP 12941079 A JP12941079 A JP 12941079A JP S5653573 A JPS5653573 A JP S5653573A
Authority
JP
Japan
Prior art keywords
converter
generated
circuit
locked
circuit breaker
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
JP12941079A
Other languages
Japanese (ja)
Inventor
Teruo Yoshino
Hidetoshi Ino
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12941079A priority Critical patent/JPS5653573A/en
Publication of JPS5653573A publication Critical patent/JPS5653573A/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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Protection Of Static Devices (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To precisely grasp a cause of trouble and to perform a reoperation speedily by a method wherein an abnormal signal is locked during the period when an AC side circuit breaker of a thyristor converter is disconnected or when an AC side current is below the prescribed level. CONSTITUTION:When a circuit breaker 3 is disconnected for some reason by a functioning converter protecting device 9, abnormal signals (c) and (d) are generated by period discriminating circuits 8 and 8' because an AC voltage on a converter 5 is brought to naught. Although there is a possibility of having the circuit breaker 3 to be continuously disconnected even when the cause of trouble has been removed, the circuit 8 is locked so that abnormal signals (c) and (d) will not be generated during a locking signal (e) is applied by means of providing a switch detecting circuit 10 or an undervoltage relay 12, a locking signal (f) is generated before abnormal signals (c) and (d) are generated when the system 2 voltage drops and the circuit 8 is locked. Hence, a converter 5 can be reoperated speedily as occasion demands without stopping its operation.
JP12941079A 1979-10-09 1979-10-09 Protection for thyristor converter Pending JPS5653573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12941079A JPS5653573A (en) 1979-10-09 1979-10-09 Protection for thyristor converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12941079A JPS5653573A (en) 1979-10-09 1979-10-09 Protection for thyristor converter

Publications (1)

Publication Number Publication Date
JPS5653573A true JPS5653573A (en) 1981-05-13

Family

ID=15008844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12941079A Pending JPS5653573A (en) 1979-10-09 1979-10-09 Protection for thyristor converter

Country Status (1)

Country Link
JP (1) JPS5653573A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154729A (en) * 1982-03-11 1983-09-14 Mitsui Toatsu Chem Inc Aromatic polyamide-polyimide block copolymer with improved moldability
JPS58219238A (en) * 1982-06-15 1983-12-20 Mitsui Toatsu Chem Inc Production of aromatic polyamide-polyimide copolymer
JPS58219237A (en) * 1982-06-16 1983-12-20 Mitsui Toatsu Chem Inc Production of aromatic polyamide-polyimide copolymer
JPS62253625A (en) * 1986-04-28 1987-11-05 Mitsubishi Electric Corp Aromatic amidoamic acid copolymer
JPS62256833A (en) * 1986-04-30 1987-11-09 Mitsubishi Electric Corp Production of aromatic polyamide-imide
JPS62270625A (en) * 1985-12-18 1987-11-25 Hitachi Chem Co Ltd Polyether-amide-imide polymer composition
JPS6372758A (en) * 1986-09-16 1988-04-02 Teijin Ltd Optically anisotropic dope of aromatic polyimide aramide
JP2015107049A (en) * 2013-12-02 2015-06-08 アーベーベー・テクノロジー・アーゲー Method and controller unit for detecting shorted diode, and bridge rectifier system
WO2017119109A1 (en) * 2016-01-07 2017-07-13 東芝三菱電機産業システム株式会社 Ac-dc converting device and control method for same

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0412295B2 (en) * 1982-03-11 1992-03-04 Mitsui Toatsu Chemicals
JPS58154729A (en) * 1982-03-11 1983-09-14 Mitsui Toatsu Chem Inc Aromatic polyamide-polyimide block copolymer with improved moldability
JPS58219238A (en) * 1982-06-15 1983-12-20 Mitsui Toatsu Chem Inc Production of aromatic polyamide-polyimide copolymer
JPH044330B2 (en) * 1982-06-15 1992-01-28
JPS58219237A (en) * 1982-06-16 1983-12-20 Mitsui Toatsu Chem Inc Production of aromatic polyamide-polyimide copolymer
JPH044331B2 (en) * 1982-06-16 1992-01-28
JPS62270625A (en) * 1985-12-18 1987-11-25 Hitachi Chem Co Ltd Polyether-amide-imide polymer composition
JPH0464627B2 (en) * 1985-12-18 1992-10-15 Hitachi Chemical Co Ltd
JPS62253625A (en) * 1986-04-28 1987-11-05 Mitsubishi Electric Corp Aromatic amidoamic acid copolymer
JPS62256833A (en) * 1986-04-30 1987-11-09 Mitsubishi Electric Corp Production of aromatic polyamide-imide
JPS6372758A (en) * 1986-09-16 1988-04-02 Teijin Ltd Optically anisotropic dope of aromatic polyimide aramide
JP2015107049A (en) * 2013-12-02 2015-06-08 アーベーベー・テクノロジー・アーゲー Method and controller unit for detecting shorted diode, and bridge rectifier system
WO2017119109A1 (en) * 2016-01-07 2017-07-13 東芝三菱電機産業システム株式会社 Ac-dc converting device and control method for same
JPWO2017119109A1 (en) * 2016-01-07 2018-09-13 東芝三菱電機産業システム株式会社 AC / DC converter and control method thereof
US20180351449A1 (en) * 2016-01-07 2018-12-06 Toshiba Mitsubishi-Electric Industrial Systems Corporation Ac-dc conversion device and method for controlling same
US10404157B2 (en) 2016-01-07 2019-09-03 Toshiba Mitsubishi-Electric Industrial Systems Corporation AC-DC conversion device and method for controlling same by controlling the timing of multiple switch portions
US20190273430A1 (en) * 2016-01-07 2019-09-05 Toshiba Mitsubishi-Electric Industrial Systems Corporation Ac-dc conversion device and method for controlling same by controlling the timing of multiple switch portions
US10938297B2 (en) 2016-01-07 2021-03-02 Toshiba Mitsubishi-Electric Industrial Systems Corporation AC-DC conversion device and method for controlling same by controlling the timing of multiple switch portions

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