JPS61108980A - Signal current waveform detector - Google Patents

Signal current waveform detector

Info

Publication number
JPS61108980A
JPS61108980A JP59228864A JP22886484A JPS61108980A JP S61108980 A JPS61108980 A JP S61108980A JP 59228864 A JP59228864 A JP 59228864A JP 22886484 A JP22886484 A JP 22886484A JP S61108980 A JPS61108980 A JP S61108980A
Authority
JP
Japan
Prior art keywords
signal
current transformer
circuit
flows
terminal
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
JP59228864A
Other languages
Japanese (ja)
Other versions
JPH0511270B2 (en
Inventor
Hiroshi Hishiya
Tsuneji Ibuki
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 JP59228864A priority Critical patent/JPH0511270B2/ja
Publication of JPS61108980A publication Critical patent/JPS61108980A/en
Publication of JPH0511270B2 publication Critical patent/JPH0511270B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To measure a signal waveform precisely, to reduce the accumulation of residual magnetization in a core and to reduce the whole cost by forming a current transformer only by one core so that currents flowing into an ON circuit and an OFF circuit connected through the current transformer are reversed each other.
CONSTITUTION: An ON signal inputted to an ON signal terminal 12 flows into an ON signal circuit and then flows into a current transformer 22 in the ascending direction. The signal is processed by a time discriminating device 24 to discriminate whether the signal is normal or not, and when the signal is abnormal, the signal is outputted from a data output terminal 25. When an OFF command is applied to the OFF signal terminal 13 of a breaker kept at the ON status, the signal current flows into the current transformer 22 in the descending direction and the signal is processed by the time discriminating circuit 24 and then outputted from the data output terminal 25. Since the current transformer for detecting ON and OFF signal currents is used in common and penetration currents flowing into the current transformer are reversed each other, the circuit can be constituted economically, the residual magnetism of the current transformer can be removed and the reliability of the signal measurement can be improved.
COPYRIGHT: (C)1986,JPO&Japio
JP59228864A 1984-11-01 1984-11-01 Expired - Lifetime JPH0511270B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59228864A JPH0511270B2 (en) 1984-11-01 1984-11-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59228864A JPH0511270B2 (en) 1984-11-01 1984-11-01

Publications (2)

Publication Number Publication Date
JPS61108980A true JPS61108980A (en) 1986-05-27
JPH0511270B2 JPH0511270B2 (en) 1993-02-15

Family

ID=16883074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59228864A Expired - Lifetime JPH0511270B2 (en) 1984-11-01 1984-11-01

Country Status (1)

Country Link
JP (1) JPH0511270B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0370395U (en) * 1989-11-13 1991-07-15
JP2010178475A (en) * 2009-01-28 2010-08-12 Chugoku Electric Power Co Inc:The Method and system for collectively and remotely monitoring switch
CN108061872A (en) * 2017-11-09 2018-05-22 国家电网公司 The test method of remanent magnetism, device, storage medium and processor in current transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0370395U (en) * 1989-11-13 1991-07-15
JP2010178475A (en) * 2009-01-28 2010-08-12 Chugoku Electric Power Co Inc:The Method and system for collectively and remotely monitoring switch
CN108061872A (en) * 2017-11-09 2018-05-22 国家电网公司 The test method of remanent magnetism, device, storage medium and processor in current transformer

Also Published As

Publication number Publication date
JPH0511270B2 (en) 1993-02-15

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