JPS5429033A - Protective relay - Google Patents

Protective relay

Info

Publication number
JPS5429033A
JPS5429033A JP9435477A JP9435477A JPS5429033A JP S5429033 A JPS5429033 A JP S5429033A JP 9435477 A JP9435477 A JP 9435477A JP 9435477 A JP9435477 A JP 9435477A JP S5429033 A JPS5429033 A JP S5429033A
Authority
JP
Japan
Prior art keywords
protective relay
suppression
flow
flow current
fault
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
JP9435477A
Other languages
Japanese (ja)
Other versions
JPS5750130B2 (en
Inventor
Kenji Suzuki
Sunao Suzuki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9435477A priority Critical patent/JPS5429033A/en
Publication of JPS5429033A publication Critical patent/JPS5429033A/en
Publication of JPS5750130B2 publication Critical patent/JPS5750130B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To remove a useless operation even for out-flow end CT saturated, with a protection made capable even with an out-flow current coming to be half of an in-flow current, by means of providing a small suppression when for an internal fault and a large suppression when for an external fault.
COPYRIGHT: (C)1979,JPO&Japio
JP9435477A 1977-08-05 1977-08-05 Protective relay Granted JPS5429033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9435477A JPS5429033A (en) 1977-08-05 1977-08-05 Protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9435477A JPS5429033A (en) 1977-08-05 1977-08-05 Protective relay

Publications (2)

Publication Number Publication Date
JPS5429033A true JPS5429033A (en) 1979-03-03
JPS5750130B2 JPS5750130B2 (en) 1982-10-26

Family

ID=14107940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9435477A Granted JPS5429033A (en) 1977-08-05 1977-08-05 Protective relay

Country Status (1)

Country Link
JP (1) JPS5429033A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132112A (en) * 1980-03-17 1981-10-16 Tokyo Shibaura Electric Co Differential protection relay
US5265819A (en) * 1990-09-10 1993-11-30 Fuji Photo Film Co., Ltd. Photographic film cassette

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161221A (en) * 1982-03-19 1983-09-24 三菱電機株式会社 Electromagnetic switching device
JPH0664346U (en) * 1993-02-19 1994-09-09 春日電機株式会社 Movable arc runner-fixed structure of electromagnetic contactor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939042A (en) * 1972-08-25 1974-04-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939042A (en) * 1972-08-25 1974-04-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132112A (en) * 1980-03-17 1981-10-16 Tokyo Shibaura Electric Co Differential protection relay
US5265819A (en) * 1990-09-10 1993-11-30 Fuji Photo Film Co., Ltd. Photographic film cassette

Also Published As

Publication number Publication date
JPS5750130B2 (en) 1982-10-26

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