JPS5715531A - Semiconductor direct current circuit breaker - Google Patents

Semiconductor direct current circuit breaker

Info

Publication number
JPS5715531A
JPS5715531A JP9099480A JP9099480A JPS5715531A JP S5715531 A JPS5715531 A JP S5715531A JP 9099480 A JP9099480 A JP 9099480A JP 9099480 A JP9099480 A JP 9099480A JP S5715531 A JPS5715531 A JP S5715531A
Authority
JP
Japan
Prior art keywords
voltage
auxiliary
main
circuit breaker
scr14
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
JP9099480A
Other languages
Japanese (ja)
Other versions
JPS6147013B2 (en
Inventor
Yoshiro Tagami
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 JP9099480A priority Critical patent/JPS5715531A/en
Publication of JPS5715531A publication Critical patent/JPS5715531A/en
Publication of JPS6147013B2 publication Critical patent/JPS6147013B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for DC voltages or currents

Landscapes

  • Thyristor Switches And Gates (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To make self-troubleshooting in a short time and to increase the system reliability, by detecting the voltage between electrodes of main and auxiliary SCRs, in the process that the harged electrode of a commutating capacitor charged with a prescribed polarity is inverted with an auxiliary SCR. CONSTITUTION:A semiconductor DC circuit breaker 3 is constituted by connecting a commutation circuit consisting of a commutation capacitor 12, reactor 13 and auxiliary SCR14, in parallel with a main SCR11 supplying main current. A commutating capacitor 12 is charged, a voltage across an auxiliary SCR14 is detected with a detection circuit 21, by taking into consideration the charging time determined with the capacitance of the commutation capacitor 12 and a resistance of the charging circuit 16, and if any failure is present, the SCR14 is triggered and the voltage across electrodes after the polarity inversion is detected, and if normal, the voltage across the main SCR11 is detected at a detection circuit 22, allowing to troubleshoot the semiconductor circuit breaker after and before the start of system operation from each detection signal.
JP9099480A 1980-07-03 1980-07-03 Semiconductor direct current circuit breaker Granted JPS5715531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9099480A JPS5715531A (en) 1980-07-03 1980-07-03 Semiconductor direct current circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9099480A JPS5715531A (en) 1980-07-03 1980-07-03 Semiconductor direct current circuit breaker

Publications (2)

Publication Number Publication Date
JPS5715531A true JPS5715531A (en) 1982-01-26
JPS6147013B2 JPS6147013B2 (en) 1986-10-17

Family

ID=14014056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9099480A Granted JPS5715531A (en) 1980-07-03 1980-07-03 Semiconductor direct current circuit breaker

Country Status (1)

Country Link
JP (1) JPS5715531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164875A1 (en) * 2012-05-01 2013-11-07 三菱電機株式会社 Dc circuit breaker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632715U (en) * 1986-06-25 1988-01-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164875A1 (en) * 2012-05-01 2013-11-07 三菱電機株式会社 Dc circuit breaker
US9413157B2 (en) 2012-05-01 2016-08-09 Mitsubishi Electric Corporation Direct-current circuit breaker

Also Published As

Publication number Publication date
JPS6147013B2 (en) 1986-10-17

Similar Documents

Publication Publication Date Title
JPS5095744A (en)
JPS5536800A (en) Resistance neutralization system for electrochemical device
GB1299266A (en) Apparatus for monitoring the state of a periodically conducting electric valve
JPS5715531A (en) Semiconductor direct current circuit breaker
GB1295840A (en)
JPS5548531A (en) Detecting method of electric spark machining condition
US3428901A (en) Condition detecting apparatus,including capacitor in series with sensor means,for short circuit protection
JPS54156296A (en) Controlling method for wire-cut electric discharge machine
JPS5548533A (en) Electric spark machine provided with indicator to indicate electric discharge machining condition
JPS56153994A (en) Commutation failure preventing circuit of converter for linear thyristor motor
JPS521224A (en) Battery abnormality detection device
JPS5662425A (en) Alternating current zero voltage switch circuit
JPS52146831A (en) Commutation capacitor voltage detecting circuit for current type inverter
SU644003A1 (en) Inverter protection device
JPS5654530A (en) Voltage abnormality detector
JPS5713971A (en) Rectifying circuit
JPS5445741A (en) Control system of inverter
SU382237A1 (en)
SU541214A1 (en) Timer periodic inclusions
JPS56132813A (en) Reset device of integrated circuit
JPS5328363A (en) Detection unit for commutating capacitor voltage in compulsive commutation cir cuit
JPS5772426A (en) Detection system for failure of breaking
JPS5462594A (en) Electrical discharge machine
JPS5787238A (en) Timer circuit
JPS56129579A (en) Protecting circuit of current type inverter