JPS6472433A - Monitoring of control current for breaker - Google Patents
Monitoring of control current for breakerInfo
- Publication number
- JPS6472433A JPS6472433A JP62227972A JP22797287A JPS6472433A JP S6472433 A JPS6472433 A JP S6472433A JP 62227972 A JP62227972 A JP 62227972A JP 22797287 A JP22797287 A JP 22797287A JP S6472433 A JPS6472433 A JP S6472433A
- Authority
- JP
- Japan
- Prior art keywords
- control current
- breaker
- reference value
- detected
- analog
- 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 dispence with quantization of control current detected so as to enable monitoring with high accuracy and without a time delay by integrating the control current to be supplied to a breaker in judging whether the beaker is in normal operation or not, and comparing the analog value to a reference value at every specified points on the way of integration. CONSTITUTION:A control current (i) flowing to a removal coil 1 is detected by a a current sensor 2 and added to an analog filter 3, then the analog amount generated is integrated by an integration unit 13, and thereafter operated in comparison of a reference value shored in a memory unit 8 with reference value at normal time. It is thus judged whether a breaker is in normal operation or not, and the result is displayed on a display 9. In this manner it is possible to eliminate the necessity of an A/D convertor for quantizing the control signal detected and to dispence with data processing of a microprocessor because of simplification of the circuit configuration of the comparator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227972A JPS6472433A (en) | 1987-09-11 | 1987-09-11 | Monitoring of control current for breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227972A JPS6472433A (en) | 1987-09-11 | 1987-09-11 | Monitoring of control current for breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6472433A true JPS6472433A (en) | 1989-03-17 |
Family
ID=16869141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62227972A Pending JPS6472433A (en) | 1987-09-11 | 1987-09-11 | Monitoring of control current for breaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6472433A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11250777A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Electric Corp | Opening/closing equipment operation diagnosis device |
CN103018666A (en) * | 2012-12-06 | 2013-04-03 | 常州森隆电力科技有限公司 | On-line monitoring/diagnostic system and method of intelligent circuit breaker |
-
1987
- 1987-09-11 JP JP62227972A patent/JPS6472433A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11250777A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Electric Corp | Opening/closing equipment operation diagnosis device |
CN103018666A (en) * | 2012-12-06 | 2013-04-03 | 常州森隆电力科技有限公司 | On-line monitoring/diagnostic system and method of intelligent circuit breaker |
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