JPS5460440A - Inspection apparatus for protective relay - Google Patents

Inspection apparatus for protective relay

Info

Publication number
JPS5460440A
JPS5460440A JP12576877A JP12576877A JPS5460440A JP S5460440 A JPS5460440 A JP S5460440A JP 12576877 A JP12576877 A JP 12576877A JP 12576877 A JP12576877 A JP 12576877A JP S5460440 A JPS5460440 A JP S5460440A
Authority
JP
Japan
Prior art keywords
voltage
inspection
phase
input
phases
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
JP12576877A
Other languages
Japanese (ja)
Inventor
Masahide Muraoka
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 JP12576877A priority Critical patent/JPS5460440A/en
Publication of JPS5460440A publication Critical patent/JPS5460440A/en
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To improve the reliability of the inspection apparatus through simplification of the trouble simulation circuit and the inspection control sequence by feeding a signal phase voltage and current to respective protective relay as a simulated trouble inspection input.
CONSTITUTION: Trouble-related voltage among voltage inputs of a relay is obtained from a reactor L connected to a phase B secondary power supply of A-T while a voltage between phases C and A is used for polarity as a voltage in a phase at the right angle to the phase B. Voltage input circuits corresponding to the respective phases are connected in parallel. With application of the forementioned input, the same inspection input can be applied to the relays corresponding to the respective phases. Accordingly, only one inspection can complete the checking of the quality of the relays corresponding to respecitive phases
COPYRIGHT: (C)1979,JPO&Japio
JP12576877A 1977-10-21 1977-10-21 Inspection apparatus for protective relay Pending JPS5460440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12576877A JPS5460440A (en) 1977-10-21 1977-10-21 Inspection apparatus for protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12576877A JPS5460440A (en) 1977-10-21 1977-10-21 Inspection apparatus for protective relay

Publications (1)

Publication Number Publication Date
JPS5460440A true JPS5460440A (en) 1979-05-15

Family

ID=14918341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12576877A Pending JPS5460440A (en) 1977-10-21 1977-10-21 Inspection apparatus for protective relay

Country Status (1)

Country Link
JP (1) JPS5460440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159923A (en) * 1980-05-12 1981-12-09 Mitsubishi Electric Corp Relay inspecting system for power system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159923A (en) * 1980-05-12 1981-12-09 Mitsubishi Electric Corp Relay inspecting system for power system
JPS6367408B2 (en) * 1980-05-12 1988-12-26 Mitsubishi Electric Corp

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