JPS61108980A - Signal current waveform detector - Google Patents
Signal current waveform detectorInfo
- 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
Links
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000001174 ascending Effects 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000005415 magnetization Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
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
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)
| 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 |
-
1984
- 1984-11-01 JP JP59228864A patent/JPH0511270B2/ja not_active Expired - Lifetime
Cited By (3)
| 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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