JPS5484470A - Protective circuit for converter gate pulse amplifier - Google Patents

Protective circuit for converter gate pulse amplifier

Info

Publication number
JPS5484470A
JPS5484470A JP15180277A JP15180277A JPS5484470A JP S5484470 A JPS5484470 A JP S5484470A JP 15180277 A JP15180277 A JP 15180277A JP 15180277 A JP15180277 A JP 15180277A JP S5484470 A JPS5484470 A JP S5484470A
Authority
JP
Japan
Prior art keywords
circuit
pulse amplifier
module
gate pulse
amplifier
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
JP15180277A
Other languages
Japanese (ja)
Inventor
Hiroshi Kasuzaki
Fumio Ogata
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 JP15180277A priority Critical patent/JPS5484470A/en
Publication of JPS5484470A publication Critical patent/JPS5484470A/en
Pending legal-status Critical Current

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  • Power Conversion In General (AREA)

Abstract

PURPOSE: To secure the normal operation of the converter through detachment of the faulty gate pulse amplifier from the module by giving a short circuit to the power supply input for the converter for the high voltage use based on the overvoltage of the power circuit in the gate pulse amplifier.
CONSTITUTION: One arm of the converter is formed by connecting m-units of module M composed by connecting SCR1∼SCRn in series. Gate pulse amplifier 1 is provided to each module in the form of the double system with addition of power circuit 2 and pulse amplifier circuit 3. Circuit 3 supplies the gate signal to each SCR by the control signal given from light guide 9. In case the overvoltage is caused to circuit 2 due to the fault of amplifier 1 and the voltage exceeds the fixed amount, the value of nonlinear resistance 15 decreases suddenly. As a result, realy 16 functions to close contact 17, and then the input of rectifier circuit 14 is short-circuited. In such way, faulty amplifier 1 is detached from the module.
COPYRIGHT: (C)1979,JPO&Japio
JP15180277A 1977-12-19 1977-12-19 Protective circuit for converter gate pulse amplifier Pending JPS5484470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15180277A JPS5484470A (en) 1977-12-19 1977-12-19 Protective circuit for converter gate pulse amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15180277A JPS5484470A (en) 1977-12-19 1977-12-19 Protective circuit for converter gate pulse amplifier

Publications (1)

Publication Number Publication Date
JPS5484470A true JPS5484470A (en) 1979-07-05

Family

ID=15526610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15180277A Pending JPS5484470A (en) 1977-12-19 1977-12-19 Protective circuit for converter gate pulse amplifier

Country Status (1)

Country Link
JP (1) JPS5484470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132760A (en) * 1981-02-10 1982-08-17 Toshiba Corp Gate pulse generator for high voltage thyristor converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132760A (en) * 1981-02-10 1982-08-17 Toshiba Corp Gate pulse generator for high voltage thyristor converter
JPH035152B2 (en) * 1981-02-10 1991-01-24 Tokyo Shibaura Electric Co

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