CN205809202U - A kind of fault arc detection device - Google Patents
A kind of fault arc detection device Download PDFInfo
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- CN205809202U CN205809202U CN201620631510.3U CN201620631510U CN205809202U CN 205809202 U CN205809202 U CN 205809202U CN 201620631510 U CN201620631510 U CN 201620631510U CN 205809202 U CN205809202 U CN 205809202U
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Abstract
A kind of fault arc detection device, relate to the detection of electric fault, one-chip computer module is connected with Signal-regulated kinase, driving module and power module, described Signal-regulated kinase is connected with sensor assembly, described one-chip computer module includes signal acquisition module and computing module, its utility model purpose is to improve fault electric arc accuracy of detection, reduces rate of false alarm, improves the accuracy of detection.
Description
Technical field
This utility model relates to the detection device of electric fault, relates to detecting the fault in cable, transmission line or network, espespecially
A kind of fault arc detection device.
Background technology
Fault electric arc detection technique be exactly easily produce electrical fire harmful electric arc pulse (as wire insulation decline,
The electric arc of the generations such as load short circuits, switch connector loose contact) (, dim adjust such as electricity-saving lamp from substantial amounts of harmless electric arc pulse
The electric arc pulse of the generations such as speed switch, hair drier, electric hand drill, vacuum cleaner, arc welder, air compressor machine, high power switch action)
And disturbing pulse detects, it is then cut off power supply, misoperation can not be produced again simultaneously.Inspection to fault electric arc in electrical network
Survey has a lot of device, and the threshold value that partial devices needs is too much, it is difficult to coordinate；The setting heavy dependence experience of threshold value and data are difficult
To promote.Partial devices, initial normal waveform data need to input in advance, if load difference, might wrong report；Just
The data of ordinary wave shape are dynamically to update, if update, waveform all there occurs the change being not above threshold value, repeatedly accumulates every time
Under, the data of normal waveform also will be no longer normal, thus cannot detect.Need also exist for multiple threshold value, depend on data and warp
Test, it is difficult to promote.The representative value of the higher hamonic wave containing ratio of partial devices can dynamically update, if there occurs do not have when updating every time
Exceed the variation of threshold value, then, under repeatedly accumulation, this representative value is no longer normal, thus cannot detect.Criterion is the most single, only
The detection to higher hamonic wave is relied on to judge easy flase drop.Partial devices, when bearing power is less, it is impossible to examine it
Survey.
Utility model content
For the shortcoming of prior art, the purpose of this utility model is to provide a kind of fault arc detection device.Can carry
High fault electric arc accuracy of detection, reduces rate of false alarm, improves the accuracy of detection.And report to the police, reduce fire and occur, protect people
The statement of member and property safety.
This utility model solves its technical problem and be the technical scheme is that a kind of fault arc detection device of offer,
It is characterized in that: include one-chip computer module, Signal-regulated kinase, driving module, power module and sensor assembly, described monolithic
Machine module is connected with Signal-regulated kinase, driving module and power module, and described Signal-regulated kinase is with sensor assembly even
Connecing, described one-chip computer module includes signal acquisition module and computing module.
Sensor assembly gathers current signal, after signal is nursed one's health by conditioning module, through one-chip computer module
Signal acquisition module gathers signal, computing module use fault arc detection method of the present utility model to carry out signal comprehensively
Analyze, judge.And to driving module to send control instruction.Perform relevant operation.
The beneficial effects of the utility model are: can improve fault electric arc accuracy of detection, reduce rate of false alarm, improve the standard of detection
Really property.And report to the police, reduce fire and occur, the statement of protection personnel and property safety.
Accompanying drawing explanation
The utility model will be further described below in conjunction with the accompanying drawings.
Fig. 1 is fault arc detection device electrical block diagram of the present utility model.
Fig. 2 is the arc signal Acquisition Circuit figure of sensor assembly in this utility model fault arc detection device.
Fig. 3 is Signal-regulated kinase circuit diagram in this utility model fault arc detection device.
Fig. 4 is electric arc warning circuit figure in this utility model fault arc detection device.
Fig. 5 is power module circuitry figure in this utility model fault arc detection device.
Detailed description of the invention
See accompanying drawing 1, the embodiment of a kind of fault arc detection device of this utility model, it is characterised in that: include monolithic
Machine module 1, Signal-regulated kinase 2, driving module 3, power module 4 and sensor assembly 5, described one-chip computer module 1 and signal
Conditioning module 2, driving module 3 and power module 4 connect, and described Signal-regulated kinase 4 is connected with sensor assembly 5, described
One-chip computer module includes signal acquisition module and computing module.
In embodiment of the present utility model:
Seeing Fig. 2, sensor assembly 5 gathers through current transformer current signal out, turns through sampling resistor R24
Becoming voltage signal, the difference operational amplifying circuit being then passed through NE5532 composition is amplified.
See Fig. 3, through differential amplifier circuit signal out through reverse ratio circuit and ratio circuit in the same direction, deliver to
Voltage follower, finally gives one-chip computer module 1, wherein R39 by signal, and R40, R41, R44 form positive voltage bias circuit.
See Fig. 4, after data acquisition above completes, in input one-chip computer module 1, carry out the analysis be correlated with, finally when
Conclusion has this electric arc when being fault, and system makes the I/O port output high level of one-chip computer module 1, thus lights LED, reaches effect of reporting to the police
Really.
See Fig. 5, power supply through positive-negative power module go out ± 12V powers to amplifier and power supply IC, uses power supply IC
XL4201 goes out 3.3V and powers to single-chip microcomputer.
Claims (3)
1. a fault arc detection device, it is characterised in that: include one-chip computer module, Signal-regulated kinase, driving module, electricity
Source module and sensor assembly, described one-chip computer module is connected with Signal-regulated kinase, driving module and power module, described
Signal-regulated kinase is connected with sensor assembly, and described one-chip computer module includes signal acquisition module and computing module.
A kind of fault arc detection device the most according to claim 1, it is characterised in that: sensor assembly collection is through electricity
Current transformer current signal out, is transformed into voltage signal through sampling resistor, is then passed through the difference fortune of NE5532 composition
Electric discharge road is amplified.
A kind of fault arc detection device the most according to claim 2, it is characterised in that: through differential amplifier circuit out
Signal through reverse ratio circuit and ratio circuit in the same direction, deliver to voltage follower, finally give one-chip computer module by signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631510.3U CN205809202U (en) | 2016-06-23 | 2016-06-23 | A kind of fault arc detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631510.3U CN205809202U (en) | 2016-06-23 | 2016-06-23 | A kind of fault arc detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205809202U true CN205809202U (en) | 2016-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620631510.3U Active CN205809202U (en) | 2016-06-23 | 2016-06-23 | A kind of fault arc detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205809202U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954628A (en) * | 2016-06-23 | 2016-09-21 | 深圳市中智盛安安全技术有限公司 | Fault arc detection method and detection apparatus |
| CN106771940A (en) * | 2017-03-01 | 2017-05-31 | 西安科技大学 | The circuit and method held time using signal single-phase monitoring inductance breaking arc |
| CN107733384A (en) * | 2017-11-21 | 2018-02-23 | 雷顿电气科技有限公司 | Folk art term bit arithmetic amplifier circuit |
-
2016
- 2016-06-23 CN CN201620631510.3U patent/CN205809202U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954628A (en) * | 2016-06-23 | 2016-09-21 | 深圳市中智盛安安全技术有限公司 | Fault arc detection method and detection apparatus |
| CN105954628B (en) * | 2016-06-23 | 2018-11-23 | 深圳市中智盛安安全技术有限公司 | A kind of fault arc detection method and detection device |
| CN106771940A (en) * | 2017-03-01 | 2017-05-31 | 西安科技大学 | The circuit and method held time using signal single-phase monitoring inductance breaking arc |
| CN106771940B (en) * | 2017-03-01 | 2019-06-18 | 西安科技大学 | The circuit and method held time using signal single-phase monitoring inductance breaking arc |
| CN107733384A (en) * | 2017-11-21 | 2018-02-23 | 雷顿电气科技有限公司 | Folk art term bit arithmetic amplifier circuit |
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