CN103021752A - Circuit breaker adaptive to automatic current parameter calibration - Google Patents
Circuit breaker adaptive to automatic current parameter calibration Download PDFInfo
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- CN103021752A CN103021752A CN 201110280444 CN201110280444A CN103021752A CN 103021752 A CN103021752 A CN 103021752A CN 201110280444 CN201110280444 CN 201110280444 CN 201110280444 A CN201110280444 A CN 201110280444A CN 103021752 A CN103021752 A CN 103021752A
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- circuit breaker
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- calibration
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Abstract
The invention relates to a circuit breaker adaptive to automatic current parameter calibration. The circuit breaker comprises a central controller, a current transformer and a tripping mechanism, wherein the current transformer is connected with a current detecting end of the central controller; the tripping mechanism is connected with a tripping control output end of the central controller. The circuit breaker has the characteristic that a current parameter calibrating control end of the central controller is connected with a calibrating button. When the current parameters of the circuit breaker are calibrated, the current parameters of a potentiometer can be calibrated by setting the current value, such as 5A, on a circuit on which the current transformer lies, and simultaneously pressing down the calibrating button. The calibrated current coefficient is stored in the Flash of the central controller in the form of a numerical value. Through the method, the parameters can be kept accurate for a long time and the accuracy of measurement is ensured, so that the reliability of the circuit breaker is ensured.
Description
Technical field
The present invention relates to the technical field of circuit breaker, specifically a kind of circuit breaker that is suitable for the automatic calibration current parameters.
Background technology
Existing circuit breaker adopts adjustable potentiometer calibration current parameter, the problem of the method maximum is exactly, adjustable potentiometer in use resistance value can change (particularly out of doors environment in), and current measurement is just inaccurate like this, often causes the circuit breaker misoperation or is failure to actuate.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of simple in structure, can guarantee all the time that current parameters is suitable for the circuit breaker of automatic calibration current parameters accurately and reliably.
In order to solve the problems of the technologies described above, the invention provides a kind of circuit breaker that is suitable for the automatic calibration current parameters, comprise: central controller, the current transformer that links to each other with the current detecting end of this central controller, with the tripping mechanism that the dropout control output end of central controller links to each other, be characterized in: the current parameters calibration control end of described central controller is connected with calibration knob.
The above-mentioned method of work that is suitable for the circuit breaker of automatic calibration current parameters, comprise: when beginning to calibrate the current parameters of circuit breaker, circuit at described current transformer place passes through to set current value, such as 5A, press simultaneously described calibration knob, namely finish the calibration of potentiometer current parameters, this moment, the current coefficient of calibration was kept among the Flash (a kind of data storage) of central controller with the form of numerical value.
Technique scheme of the present invention has the following advantages compared to existing technology: the circuit breaker that is suitable for the automatic calibration current parameters of the present invention in use, pass through software, with calibration program automatic calibration current parameters, the current coefficient of calibration is kept among the Flash of central controller with the form of numerical value.This way parameter is accurate for a long time, has guaranteed the accuracy of measuring, thereby has guaranteed the reliability of circuit breaker.
Description of drawings
For content of the present invention is more likely to be clearly understood, below the specific embodiment and by reference to the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the circuit breaker that is suitable for the automatic calibration current parameters among the embodiment.
Embodiment
See Fig. 1, the circuit breaker that is suitable for the automatic calibration current parameters of the present embodiment comprises: central controller, the current transformer that links to each other with the current detecting end of this central controller, the tripping mechanism that links to each other with the dropout control output end of central controller, the LCD (being liquid crystal display screen) that links to each other with the demonstration output of central controller, the current parameters calibration control end of described central controller is connected with calibration knob S1, and GND is earth terminal.
The described method of work that is suitable for the circuit breaker of automatic calibration current parameters, comprise: when beginning to calibrate the current parameters of circuit breaker, circuit at described current transformer place passes through to set current value, such as 5A, press simultaneously described calibration knob, namely finish the calibration of potentiometer current parameters, the current coefficient of calibration this moment is kept among the Flash of central controller with the form of numerical value.
Obviously, above-described embodiment only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (2)
1. circuit breaker that is suitable for the automatic calibration current parameters, it comprises: central controller, the current transformer that links to each other with the current detecting end of this central controller, with the tripping mechanism that the dropout control output end of central controller links to each other, it is characterized in that: the current parameters calibration control end of described central controller is connected with calibration knob.
2. the method for work that is suitable for the circuit breaker of automatic calibration current parameters according to claim 1, it is characterized in that comprising: when beginning to calibrate the current parameters of circuit breaker, circuit at described current transformer place passes through to set current value, press simultaneously described calibration knob, namely finish the calibration of potentiometer current parameters, the current coefficient of calibration this moment is kept among the Flash of central controller with the form of numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110280444 CN103021752A (en) | 2011-09-21 | 2011-09-21 | Circuit breaker adaptive to automatic current parameter calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110280444 CN103021752A (en) | 2011-09-21 | 2011-09-21 | Circuit breaker adaptive to automatic current parameter calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103021752A true CN103021752A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110280444 Pending CN103021752A (en) | 2011-09-21 | 2011-09-21 | Circuit breaker adaptive to automatic current parameter calibration |
Country Status (1)
| Country | Link |
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| CN (1) | CN103021752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206197A (en) * | 2016-08-29 | 2016-12-07 | 天津市百利电气有限公司 | There is the chopper of rated current automatic calibration function |
-
2011
- 2011-09-21 CN CN 201110280444 patent/CN103021752A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206197A (en) * | 2016-08-29 | 2016-12-07 | 天津市百利电气有限公司 | There is the chopper of rated current automatic calibration function |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |