JPS55147358A - Method and device for detecting breaking of wire line - Google Patents
Method and device for detecting breaking of wire lineInfo
- 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
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
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)
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 |
-
1979
- 1979-05-04 JP JP5494979A patent/JPS55147358A/en active Granted
Cited By (3)
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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