JPS55147358A - Method and device for detecting breaking of wire line - Google Patents

Method and device for detecting breaking of wire line

Info

Publication number
JPS55147358A
JPS55147358A JP5494979A JP5494979A JPS55147358A JP S55147358 A JPS55147358 A JP S55147358A JP 5494979 A JP5494979 A JP 5494979A JP 5494979 A JP5494979 A JP 5494979A JP S55147358 A JPS55147358 A JP S55147358A
Authority
JP
Japan
Prior art keywords
line
pass filter
breaking
multiplexer
supplied
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
JP5494979A
Other languages
Japanese (ja)
Other versions
JPS6258206B2 (en
Inventor
Motohiko Shimada
Toshihiko Tanioka
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.)
Kansai Electric Power Co Inc
Daihen Corp
Original Assignee
Kansai Electric Power Co Inc
Daihen Corp
Osaka Transformer 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 Kansai Electric Power Co Inc, Daihen Corp, Osaka Transformer Co Ltd filed Critical Kansai Electric Power Co Inc
Priority to JP5494979A priority Critical patent/JPS55147358A/en
Publication of JPS55147358A publication Critical patent/JPS55147358A/en
Publication of JPS6258206B2 publication Critical patent/JPS6258206B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To clearly discriminate the case of one-line breaking accident and from the case of load fluctuation by seeking the vector difference at each phase of the line voltage at a substation immediately before or after one-line breaking.
CONSTITUTION: Line currents measured by current transformers CT1WCT3 are supplied to a multiplexer 11 via a current-voltage converter 1, a band-pass filter 2, an effective value converting circuit 3, a low pass filter 4 and a DC amplifier 5. A line voltage measured by a transformer PT1 is supplied to the multiplexer 11 via the band pass filter 2, a square wave forming circuit 6, a phase discriminating circuit 7, a low-pass filter 4 and a DC amplifier 5. The output signal of the multiplexer 11 is supplied to a microprocesser 13 through an A/D converter, and the existence or nonexistence of one line breaking and the phase where breaking of line is made are discriminated.
COPYRIGHT: (C)1980,JPO&Japio
JP5494979A 1979-05-04 1979-05-04 Method and device for detecting breaking of wire line Granted JPS55147358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5494979A JPS55147358A (en) 1979-05-04 1979-05-04 Method and device for detecting breaking of wire line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5494979A JPS55147358A (en) 1979-05-04 1979-05-04 Method and device for detecting breaking of wire line

Publications (2)

Publication Number Publication Date
JPS55147358A true JPS55147358A (en) 1980-11-17
JPS6258206B2 JPS6258206B2 (en) 1987-12-04

Family

ID=12984903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5494979A Granted JPS55147358A (en) 1979-05-04 1979-05-04 Method and device for detecting breaking of wire line

Country Status (1)

Country Link
JP (1) JPS55147358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61251412A (en) * 1985-04-26 1986-11-08 関西電力株式会社 Detection for disconnection of electric circuit
JPH03182963A (en) * 1990-08-17 1991-08-08 Casio Comput Co Ltd Electronic display device
JP2016005334A (en) * 2014-06-16 2016-01-12 関西電力株式会社 Disconnection detection device and disconnection detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61251412A (en) * 1985-04-26 1986-11-08 関西電力株式会社 Detection for disconnection of electric circuit
JPH03182963A (en) * 1990-08-17 1991-08-08 Casio Comput Co Ltd Electronic display device
JP2016005334A (en) * 2014-06-16 2016-01-12 関西電力株式会社 Disconnection detection device and disconnection detection method

Also Published As

Publication number Publication date
JPS6258206B2 (en) 1987-12-04

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