JPS5421550A - Protective relay system - Google Patents

Protective relay system

Info

Publication number
JPS5421550A
JPS5421550A JP8566677A JP8566677A JPS5421550A JP S5421550 A JPS5421550 A JP S5421550A JP 8566677 A JP8566677 A JP 8566677A JP 8566677 A JP8566677 A JP 8566677A JP S5421550 A JPS5421550 A JP S5421550A
Authority
JP
Japan
Prior art keywords
current
relay system
protective relay
accident
absolute value
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
JP8566677A
Other languages
Japanese (ja)
Other versions
JPS5526778B2 (en
Inventor
Takumi Mitsugi
Kiyoshi Miyanishi
Kenji Ito
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 JP8566677A priority Critical patent/JPS5421550A/en
Publication of JPS5421550A publication Critical patent/JPS5421550A/en
Publication of JPS5526778B2 publication Critical patent/JPS5526778B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

PURPOSE: To permit reliable detection of a transient state in the initial stage of an accident by a current comparison system, which determines a wiring accident to be present when difference current between the absolute value of load current and the absolute value of pattern current reaches a predetermined value.
COPYRIGHT: (C)1979,JPO&Japio
JP8566677A 1977-07-19 1977-07-19 Protective relay system Granted JPS5421550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8566677A JPS5421550A (en) 1977-07-19 1977-07-19 Protective relay system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8566677A JPS5421550A (en) 1977-07-19 1977-07-19 Protective relay system

Publications (2)

Publication Number Publication Date
JPS5421550A true JPS5421550A (en) 1979-02-17
JPS5526778B2 JPS5526778B2 (en) 1980-07-16

Family

ID=13865137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8566677A Granted JPS5421550A (en) 1977-07-19 1977-07-19 Protective relay system

Country Status (1)

Country Link
JP (1) JPS5421550A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55138887A (en) * 1979-04-17 1980-10-30 Denki Onkyo Co Ltd Hall element
JP2006235301A (en) * 2005-02-25 2006-09-07 Pentax Corp Magnifying glass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55138887A (en) * 1979-04-17 1980-10-30 Denki Onkyo Co Ltd Hall element
JPH0228910B2 (en) * 1979-04-17 1990-06-27 Murata Manufacturing Co
JP2006235301A (en) * 2005-02-25 2006-09-07 Pentax Corp Magnifying glass

Also Published As

Publication number Publication date
JPS5526778B2 (en) 1980-07-16

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