JPS5267743A - Monitoring device of protective relay - Google Patents

Monitoring device of protective relay

Info

Publication number
JPS5267743A
JPS5267743A JP50142860A JP14286075A JPS5267743A JP S5267743 A JPS5267743 A JP S5267743A JP 50142860 A JP50142860 A JP 50142860A JP 14286075 A JP14286075 A JP 14286075A JP S5267743 A JPS5267743 A JP S5267743A
Authority
JP
Japan
Prior art keywords
monitoring device
protective relay
auxiliary
coil
trip control
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
JP50142860A
Other languages
Japanese (ja)
Inventor
Kiichi Takiguchi
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 JP50142860A priority Critical patent/JPS5267743A/en
Publication of JPS5267743A publication Critical patent/JPS5267743A/en
Pending legal-status Critical Current

Links

Landscapes

  • Keying Circuit Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To improve reliability with a simple circuit, by setting a working coil of auxiliary relaywith better performance characteristics in parallel with a trip control coi, and actuating the auxiliary relay by means of a control power source and by detecting any defect of the trip control coil in its reset state.
COPYRIGHT: (C)1977,JPO&Japio
JP50142860A 1975-12-03 1975-12-03 Monitoring device of protective relay Pending JPS5267743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50142860A JPS5267743A (en) 1975-12-03 1975-12-03 Monitoring device of protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50142860A JPS5267743A (en) 1975-12-03 1975-12-03 Monitoring device of protective relay

Publications (1)

Publication Number Publication Date
JPS5267743A true JPS5267743A (en) 1977-06-04

Family

ID=15325285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50142860A Pending JPS5267743A (en) 1975-12-03 1975-12-03 Monitoring device of protective relay

Country Status (1)

Country Link
JP (1) JPS5267743A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS489241A (en) * 1971-06-16 1973-05-02 Hitachi Ltd Abnormality monitoring device of contact circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS489241A (en) * 1971-06-16 1973-05-02 Hitachi Ltd Abnormality monitoring device of contact circuit

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