JPS54139044A - Preventive maintenance of circuit breaker - Google Patents
Preventive maintenance of circuit breakerInfo
- Publication number
- JPS54139044A JPS54139044A JP4681278A JP4681278A JPS54139044A JP S54139044 A JPS54139044 A JP S54139044A JP 4681278 A JP4681278 A JP 4681278A JP 4681278 A JP4681278 A JP 4681278A JP S54139044 A JPS54139044 A JP S54139044A
- Authority
- JP
- Japan
- Prior art keywords
- breaker
- time
- monitoring
- trouble
- operating
- 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
Links
Abstract
PURPOSE: To sense a trouble beforehand and to improve reliability of the breaker by monitoring any of multiple quantities which vary in operating the breaker, for example, one of differential, integral and instantaneous values with respect to the control current.
CONSTITUTION: Whether the breaker is normal is decided by monitoring a quantity which varies in operating the breaker, for example, the instantaneous value of control current. Respective sampling sites 1 to 4 show that respective quantity levels with respect to time are set as the initial values at the time of products shipment. At this time, a range is given to the time or level and it is determined on considering the variation of test unit errors, surrounding temperature and control voltage. By this way, the wave form of a broken line as shown in figure can be decided abnormal, a trouble is sensed beforehand, resulting in an improvement of reliability of the breaker.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4681278A JPS54139044A (en) | 1978-04-19 | 1978-04-19 | Preventive maintenance of circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4681278A JPS54139044A (en) | 1978-04-19 | 1978-04-19 | Preventive maintenance of circuit breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54139044A true JPS54139044A (en) | 1979-10-29 |
Family
ID=12757734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4681278A Pending JPS54139044A (en) | 1978-04-19 | 1978-04-19 | Preventive maintenance of circuit breaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54139044A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597935U (en) * | 1978-12-27 | 1980-07-08 | ||
JPS5725629A (en) * | 1980-07-22 | 1982-02-10 | Tokyo Shibaura Electric Co | Method of externally diagnozing malfunction of switching device |
JPS61203820A (en) * | 1985-03-07 | 1986-09-09 | 株式会社日立製作所 | Abnormal operation monitor for breaker |
JPS62226519A (en) * | 1986-03-27 | 1987-10-05 | 日新電機株式会社 | Preventive maintenance apparatus of breaker and the like |
JPH11250777A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Electric Corp | Opening/closing equipment operation diagnosis device |
JP2017045562A (en) * | 2015-08-25 | 2017-03-02 | 株式会社日立製作所 | Breaker system |
JP2019030129A (en) * | 2017-07-31 | 2019-02-21 | 中国電力株式会社 | Switch batch monitoring device, switch batch monitoring method, and switch batch monitoring program |
JP6599060B1 (en) * | 2019-02-13 | 2019-10-30 | 三菱電機株式会社 | Switchgear diagnostic device |
-
1978
- 1978-04-19 JP JP4681278A patent/JPS54139044A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597935U (en) * | 1978-12-27 | 1980-07-08 | ||
JPS5725629A (en) * | 1980-07-22 | 1982-02-10 | Tokyo Shibaura Electric Co | Method of externally diagnozing malfunction of switching device |
JPS61203820A (en) * | 1985-03-07 | 1986-09-09 | 株式会社日立製作所 | Abnormal operation monitor for breaker |
JPS62226519A (en) * | 1986-03-27 | 1987-10-05 | 日新電機株式会社 | Preventive maintenance apparatus of breaker and the like |
JPH11250777A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Electric Corp | Opening/closing equipment operation diagnosis device |
JP2017045562A (en) * | 2015-08-25 | 2017-03-02 | 株式会社日立製作所 | Breaker system |
JP2019030129A (en) * | 2017-07-31 | 2019-02-21 | 中国電力株式会社 | Switch batch monitoring device, switch batch monitoring method, and switch batch monitoring program |
JP6599060B1 (en) * | 2019-02-13 | 2019-10-30 | 三菱電機株式会社 | Switchgear diagnostic device |
WO2020165975A1 (en) * | 2019-02-13 | 2020-08-20 | 三菱電機株式会社 | Switching equipment diagnostic device |
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