CN103311880A - Circuit breaker overcurrent setting system - Google Patents
Circuit breaker overcurrent setting system Download PDFInfo
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- CN103311880A CN103311880A CN2013102705163A CN201310270516A CN103311880A CN 103311880 A CN103311880 A CN 103311880A CN 2013102705163 A CN2013102705163 A CN 2013102705163A CN 201310270516 A CN201310270516 A CN 201310270516A CN 103311880 A CN103311880 A CN 103311880A
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- circuit breaker
- current
- computer
- control unit
- display
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Abstract
The invention discloses a circuit breaker overcurrent setting system which comprises a computer, a constant current source, a circuit breaker, a current transmitter, an analog input module and a display. The computer is provided with a current processing unit, a timer and a control unit. The constant current source provides equivalent overcurrent for the circuit breaker, and the circuit breaker conducts collection and modulation on overcurrent in a loop and outputs the overcurrent to the analog input module. The current processing unit in the computer outputs a current value collected by the analog input module to the control unit and the display in the computer, the timer in the computer outputs electrification time collected by the analog input module to the control unit and the display in the computer, and the control unit outputs start and stop control signals which are judged and processed to the constant current source. By means of the system, real-time automatic setting operation of the circuit breaker overcurrnet is achieved, setting accuracy is high, setting rate is high, and the system has remarkable practical value.
Description
Technical field
The present invention relates to a kind of circuit breaker overload current adjusting system, belong to the breaker control technical field.
Background technology
The circuit breaker overload current technique of adjusting is overload current to the circuit breaker equivalence, and tripping operation then stops described overload current within the operate time of regulation.Can't realize the on-line automatic given of the corresponding equivalent overload current of different size circuit breaker in the prior art, given described overload current can't stop given described overload current automatically automatically, can't automatically record the conduction time of given overload current.
At present, the method for adjusting about the circuit breaker overload current normally adopts manual mode, manually starts power device, manually sets setting current and operate time, manually stops power device, last manual record conduction time.Thisly finish method that the circuit breaker overload current adjusts by manual operation and exist and adjust that speed is slow, precision is low, can not realize finishing real-time the defect problem such as tuning process.
This area Kei needs to realize the automatic adjusting operation of circuit breaker overload current, to reach accurately in real time control purpose.
Summary of the invention
In view of the foregoing defects the prior art has problem and demand, the present invention aims to provide a kind of circuit breaker overload current adjusting system, realizing the automatic adjusting operation of circuit breaker overload current, and reaches accurately in real time control purpose.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of circuit breaker overload current adjusting system, comprise: computer, constant-current source, circuit breaker, current transducer, analog input module and display, described computer is provided with the current processing unit, timer and control unit, described constant-current source provides equivalent overload current for circuit breaker, circuit breaker is exported to the analog input module with the overload current in the loop behind current transducer collection and modulation, control unit and display the computer will be exported to from the current value that the analog input module collects in current processing unit in the computer, timer in the computer will be exported to from the conduction time that the analog input module collects control unit and display the computer, and described control unit is with through judging that the on off control signal after processing export to constant-current source.
As a kind of preferred version, described display is liquid crystal display.
As a kind of preferred version, when control unit judges that described overload current in the current field of regulation, then sends power cut signal, and sends stop signal conduction time.
As a kind of preferred version, judge described conduction time in described compulsory exercise time-domain when control unit, then send the circuit breaker qualified signal of adjusting, and show at display.
Compared with prior art, circuit breaker overload current adjusting system provided by the invention, the automation that has realized the circuit breaker overload current operation of adjusting, can realize overload current to different circuit breakers carry out in real time automatically given, automatically stop and automatically recording conduction time, the precision of adjusting is high, and the speed of adjusting is fast, and comparable manual operation improves 30%, the product quality of circuit breaker is largely increased, has the conspicuousness practical value.
Description of drawings
Fig. 1 is the structural representation of a kind of circuit breaker overload current adjusting system provided by the invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is done further and to be elaborated:
See also shown in Figure 1: a kind of circuit breaker overload current adjusting system provided by the invention, comprise: computer 1, constant-current source 2, circuit breaker 3, current transducer 4, analog input module 5 and display 6, described computer 1 is provided with current processing unit 11, timer 12 and control unit 13, described constant-current source 2 provides equivalent overload current for circuit breaker 3, circuit breaker 3 is exported to analog input module 5 with the overload current in the loop behind current transducer 4 collections and modulation, control unit 13 and display 6 computer will be exported to from the current value that analog input module 5 collects in current processing unit 11 in the computer, timer 12 in the computer will be exported to from the conduction time that analog input module 5 collects control unit 13 and display 6 computer, and described control unit 13 is with through judging that the on off control signal after processing export to constant-current source 2.When control unit 13 judges that described overload current in the current field of regulation, then sends power cut signal, and sends stop signal conduction time; Judge described conduction time in described compulsory exercise time-domain when control unit, then send the circuit breaker qualified signal of adjusting, and show at display.
As a kind of preferred version, described display 6 is liquid crystal display.
In sum as seen: circuit breaker overload current adjusting system provided by the invention, the automation that has realized the circuit breaker overload current operation of adjusting, can realize overload current to different circuit breakers carry out in real time automatically given, automatically stop and automatically recording conduction time, the precision of adjusting is high, and the speed of adjusting is fast, comparable manual operation improves 30%, and the product quality of circuit breaker is largely increased, and has the conspicuousness practical value.
Be necessary at last to be pointed out that at this; above-mentioned explanation only is used for technical scheme of the present invention is described in further detail; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (4)
1. circuit breaker overload current adjusting system, it is characterized in that, comprise: computer, constant-current source, circuit breaker, current transducer, analog input module and display, described computer is provided with the current processing unit, timer and control unit, described constant-current source provides equivalent overload current for circuit breaker, circuit breaker is exported to the analog input module with the overload current in the loop behind current transducer collection and modulation, control unit and display the computer will be exported to from the current value that the analog input module collects in current processing unit in the computer, timer in the computer will be exported to from the conduction time that the analog input module collects control unit and display the computer, and described control unit is with through judging that the on off control signal after processing export to constant-current source.
2. circuit breaker overload current adjusting system as claimed in claim 1, it is characterized in that: described display is liquid crystal display.
3. circuit breaker overload current adjusting system as claimed in claim 1 is characterized in that: when control unit judges that described overload current in the current field of regulation, then sends power cut signal, and sends stop signal conduction time.
4. circuit breaker overload current adjusting system as claimed in claim 1 is characterized in that: judge described conduction time in described compulsory exercise time-domain when control unit, then send the circuit breaker qualified signal of adjusting, and show at display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102705163A CN103311880A (en) | 2013-06-28 | 2013-06-28 | Circuit breaker overcurrent setting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102705163A CN103311880A (en) | 2013-06-28 | 2013-06-28 | Circuit breaker overcurrent setting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103311880A true CN103311880A (en) | 2013-09-18 |
Family
ID=49136805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102705163A Pending CN103311880A (en) | 2013-06-28 | 2013-06-28 | Circuit breaker overcurrent setting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103311880A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009425A (en) * | 2006-12-28 | 2007-08-01 | 人民电器集团有限公司 | Over current protection system of the breaker and its operating method |
| US20090195337A1 (en) * | 2008-01-31 | 2009-08-06 | Carlino Harry J | Manually selectable instantaneous current settings for a trip unit and electrical switching apparatus including the same |
| CN101714749A (en) * | 2008-10-08 | 2010-05-26 | 三菱电机株式会社 | Electronic circuit breaker |
-
2013
- 2013-06-28 CN CN2013102705163A patent/CN103311880A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009425A (en) * | 2006-12-28 | 2007-08-01 | 人民电器集团有限公司 | Over current protection system of the breaker and its operating method |
| US20090195337A1 (en) * | 2008-01-31 | 2009-08-06 | Carlino Harry J | Manually selectable instantaneous current settings for a trip unit and electrical switching apparatus including the same |
| CN101714749A (en) * | 2008-10-08 | 2010-05-26 | 三菱电机株式会社 | Electronic circuit breaker |
Non-Patent Citations (1)
| Title |
|---|
| 程武山等: "应用于低压断路器测试的自动化测控系统设计", 《制造自动化》, vol. 34, no. 8, 31 August 2012 (2012-08-31) * |
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| PB01 | Publication | ||
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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: 20130918 |