JPS5472440A - Protection of rectifier - Google Patents

Protection of rectifier

Info

Publication number
JPS5472440A
JPS5472440A JP13949077A JP13949077A JPS5472440A JP S5472440 A JPS5472440 A JP S5472440A JP 13949077 A JP13949077 A JP 13949077A JP 13949077 A JP13949077 A JP 13949077A JP S5472440 A JPS5472440 A JP S5472440A
Authority
JP
Japan
Prior art keywords
circuit
signal
protective
shot
time delay
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
JP13949077A
Other languages
Japanese (ja)
Other versions
JPS5526779B2 (en
Inventor
Hiroshi Ikeda
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 JP13949077A priority Critical patent/JPS5472440A/en
Publication of JPS5472440A publication Critical patent/JPS5472440A/en
Publication of JPS5526779B2 publication Critical patent/JPS5526779B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To permit the continuation of operation even at the time of a trouble encountered within the protective range of high speed current-limiting fuse by providing one-shot circuit, time delay circuit, and AND circuit to the protective circuit of rectifier.
CONSTITUTION: The circuit 11 by which to convert the output signal 14 of the overcurrent detector 2 into one-shot signal, the circuit 12 by which to give a time delay to the signal 15 obtained from the circuit 11, and the AND circuit are inserted into the protective circuit. The overcurrent signal 14 from the AC side overcurrent detector 2 is converted into the one-shot signal 15 by the one-shot circuit and then converted into the time delay signal 16 by the time delay circuit 12. Then, in accordance with an AND condition at the AND circuit 13 for the signal 16 and the output signal 14 of the overcurrent detector 2, the protective interlocking command signal 17 is dispatched and protective operation is made by the protective interlocking circuit 4. Thus, the operation of rectifier can be continued during a temporary trouble during which period the high speed current limiting fuses 91 to 9n to protect the rectifier elements 101 to 10n work individually.
COPYRIGHT: (C)1979,JPO&Japio
JP13949077A 1977-11-22 1977-11-22 Protection of rectifier Granted JPS5472440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13949077A JPS5472440A (en) 1977-11-22 1977-11-22 Protection of rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13949077A JPS5472440A (en) 1977-11-22 1977-11-22 Protection of rectifier

Publications (2)

Publication Number Publication Date
JPS5472440A true JPS5472440A (en) 1979-06-09
JPS5526779B2 JPS5526779B2 (en) 1980-07-16

Family

ID=15246466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13949077A Granted JPS5472440A (en) 1977-11-22 1977-11-22 Protection of rectifier

Country Status (1)

Country Link
JP (1) JPS5472440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211621A (en) * 1981-06-24 1982-12-25 Hitachi Ltd Controlling system for power factor improving circuit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101373A (en) * 1981-12-14 1983-06-16 Nippon Telegr & Teleph Corp <Ntt> Character and diagram input method
JPS6132797A (en) * 1984-07-26 1986-02-15 森本　勝美 Business management system
JP6969531B2 (en) 2018-10-10 2021-11-24 オムロン株式会社 Electronics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211621A (en) * 1981-06-24 1982-12-25 Hitachi Ltd Controlling system for power factor improving circuit
JPH0532762B2 (en) * 1981-06-24 1993-05-17 Hitachi Ltd

Also Published As

Publication number Publication date
JPS5526779B2 (en) 1980-07-16

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