JPS56117173A - Automatic tester for protective relay - Google Patents

Automatic tester for protective relay

Info

Publication number
JPS56117173A
JPS56117173A JP2122580A JP2122580A JPS56117173A JP S56117173 A JPS56117173 A JP S56117173A JP 2122580 A JP2122580 A JP 2122580A JP 2122580 A JP2122580 A JP 2122580A JP S56117173 A JPS56117173 A JP S56117173A
Authority
JP
Japan
Prior art keywords
relay
tester
comparator
voltage
circuit
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
JP2122580A
Other languages
Japanese (ja)
Inventor
Toshiaki Fujie
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.)
Nissin Electric Co Ltd
Original Assignee
Nissin 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 Nissin Electric Co Ltd filed Critical Nissin Electric Co Ltd
Priority to JP2122580A priority Critical patent/JPS56117173A/en
Publication of JPS56117173A publication Critical patent/JPS56117173A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches

Abstract

PURPOSE:To make the constitution of a relay tester simple by combining a relay tester having a transformr with taps and auxiliary relays for selecting taps and a tester including a comparator and a stepping circuit. CONSTITUTION:When the relay TR2 to be inspected is selected, contacts R2' R21' R22 are closed and the voltage corresponding to the load of the relay TR2 is set by a setting circuit 54, so that a stepping circuit 52 is stepped by way of a comparator CM. Then, auxiliary relays AY-NY are operated successively, and when the voltage exceeds the voltage of a reference voltage generating circuit 53 connected to the comparator CM, the stepping operation is stopped and the contacts nx close, whereby the voltage corresponding to the tap of a transformer T is obtained. Hence, the output from an output terminal TR2 corresponds to the set voltage corresponding to the load of the relay to be inspected, and this enables a relay tester 11 to be simplified and its reliability to be improved.
JP2122580A 1980-02-21 1980-02-21 Automatic tester for protective relay Pending JPS56117173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2122580A JPS56117173A (en) 1980-02-21 1980-02-21 Automatic tester for protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2122580A JPS56117173A (en) 1980-02-21 1980-02-21 Automatic tester for protective relay

Publications (1)

Publication Number Publication Date
JPS56117173A true JPS56117173A (en) 1981-09-14

Family

ID=12049067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2122580A Pending JPS56117173A (en) 1980-02-21 1980-02-21 Automatic tester for protective relay

Country Status (1)

Country Link
JP (1) JPS56117173A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100445573B1 (en) * 2001-08-28 2004-08-25 한국전력공사 A protection relay testing method for reducing loss of electric power
KR100471554B1 (en) * 2002-10-30 2005-03-10 한국전력공사 A protective control board testing method for reducing loss of electric power
CN105510823A (en) * 2016-01-25 2016-04-20 南安普敦咨询服务有限公司 Thermal relay running monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100445573B1 (en) * 2001-08-28 2004-08-25 한국전력공사 A protection relay testing method for reducing loss of electric power
KR100471554B1 (en) * 2002-10-30 2005-03-10 한국전력공사 A protective control board testing method for reducing loss of electric power
CN105510823A (en) * 2016-01-25 2016-04-20 南安普敦咨询服务有限公司 Thermal relay running monitoring system

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