CN103531059A - Teaching tool for testing faults of power cable - Google Patents
Teaching tool for testing faults of power cable Download PDFInfo
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- CN103531059A CN103531059A CN201310410532.8A CN201310410532A CN103531059A CN 103531059 A CN103531059 A CN 103531059A CN 201310410532 A CN201310410532 A CN 201310410532A CN 103531059 A CN103531059 A CN 103531059A
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Abstract
The invention discloses a teaching tool for testing faults of a power cable. The teaching tool comprises an upper computer, a fault tester and a rheostat, wherein the upper computer is connected with the fault tester; the fault tester is used for carrying out waveform data acquisition and processing and is communicated with the upper computer to send waveform data to the upper computer to display; the fault tester is connected with the rheostat by a communication coaxial cable and fault setting is carried out by adjusting the resistance value of the rheostat to simulate a cable fault; and the fault tester comprises a single chip microcomputer, an acquisition module, an A/D (Analogue/Digital) conversion module, a data storage module and an interface circuit. With the adoption of a separable structure, the tester is connected with the upper computer to realize man-machine conversation and improve the stability and the universality of the system; existing high-voltage equipment is not used so that the safety is high; a testing waveform effect is clearer than that of the power cable and fewer disordered waveforms exist; and the teaching tool is suitable for training in various fields so that a lot of training cost is saved and the time and the labor are saved.
Description
Technical field
The present invention is specifically related to a kind of educational aid, relates in particular to a kind of power cable fault test educational aid.
Background technology
In cable industry, searching of cable fault is more difficult, is difficult to grasp, and is technical and empirical all more intense work.The difficult point that fault test is searched is the identification of fault waveform, and this just requires tester will correctly identify waveform.Therefore performance index, operation steps, the method for testing of electric cable failure detector device, just seem crucial especially.
And the various electric cable failure detector devices that use in practice are at present expensive, bulky, running program is miscellaneous, the mode of connection is complicated, and work on the spot is dangerous, and waveform shows that interference is large, waveform is nonstandard, the identification difficulty to waveform.
The cycle of cultivating qualified cable fault detect personnel needs is longer, at least will have 3 years above on-the-spot test experiences; At present, carrying out fault test training need to connect the cable of sufficient length with substantial equipment such as bulky electric cable failure detector, control box, high pressure generators, the behaviour in service of dummycable and various fault state; Each equipment quality is heavier and bulky, and testing apparatus connects the potential safety hazard that has electric shock in high pressure generator test process, and training scene will take 9m
2above place, and the various fault settings of cable also have certain difficulty, and fault in-situ is bad simulation also; To training, bring a lot of troubles.
Comprehensive above every factor, fault test training is subject to the impact of the conditions such as place, manpower, environment, equipment, hazards and trouble spot arrange, and to training, brings a lot of inconvenience, causes fault test training to be carried out and has high input, training process is complicated, and result of training is not obvious.
Summary of the invention
The object of the present invention is to provide that a kind of simple in structure, easy to use, carrying portable, work efficiency are high, the power cable fault test educational aid of handling safety.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of power cable fault test educational aid, comprise host computer, failure tester, rheostat, host computer is connected with failure tester, by failure tester, is carried out Wave data collection, processing and is communicated by letter and send to host computer to show Wave data with host computer; Failure tester is connected with rheostat by communication coaxial cable, carries out fault setting, dummycable fault by standardsizing rheostat resistance size; Described failure tester comprises single-chip microcomputer, acquisition module, A/D modular converter, data memory module and interface circuit.
The single-chip microcomputer of described failure tester receives the instruction that host computer sends, Single-chip Controlling power device produces transmitted wave, then by acquisition module, receive reflection wave, and reflection wave is converted to digital signal through A/D modular converter, by interface circuit, send to host computer.
The digital signal of described A/D modular converter output, is stored in data memory module, and described failure tester data memory module is connected with LED display module, shows the voltage gathering by LED display module.
Described PC control failure tester carries out the collection of cable fault signal, the demonstration of voltage data, storage and communicate by letter with host computer.
Described host computer is notebook computer, and fault test instrument is connected with notebook computer by USB interface, realizes man-machine conversation.
A/D modular converter and the data memory module of described failure tester are connected with under-voltage protecting circuit.
Beneficial effect of the present invention is as follows:
1) instrument of the present invention is comprised of host computer, failure tester and rheostat, failure tester, and volume is little, adopts separate type, and testing tool is connected with host computer, realizes man-machine conversation, has improved stability and the versatility of system.
2) need not existing high-tension apparatus, safe to use, very safe to host computer, operating personnel.
3) adopt host computer as display terminal, test waveform feature is clear easily to be distinguished, binary channels, with screen correlation data treatment technology, is conducive to carry out the comparative analysis of waveform, and the waveform effect of its test is more clear than power cable, and mixed and disorderly waveform is less.
4) this educational aid has dwindled training venue, than on-site training in the past, easy and simple to handle, safe.Can carry out line, test, explanation indoor, improve result of training.
5) with rheostat, carry out the setting of trouble spot, by the size of standardsizing rheostat resistance, simulate various short circuits, open circuit, low-resistance fault, fault easily arranges, and the more accurate trouble spot of fault resistance arranging easily arranges, resistance size by standardsizing rheostat arranges, and the fault resistance arranging is more accurate.
6) making of educational aid, is applicable to various occasion trainings, has saved a large amount of training costs, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the structural drawing of failure tester of the present invention;
Fig. 3 is coaxial communication cable structural drawing; Fig. 3 a is cut-open view; Fig. 3 b is STRUCTURE DECOMPOSITION figure;
Fig. 4 is application rheostat simulated failure point resistance schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the schematic diagram of educational aid, power cable fault test educational aid, comprise host computer b, the failure tester a, the rheostat d that by notebook computer, are formed, host computer b is connected with failure tester a, by failure tester a, is carried out Wave data collection, processing and is communicated by letter and send to host computer b to show Wave data with host computer b; Failure tester a is connected with rheostat d by communication coaxial cable c, by standardsizing rheostat d resistance size, carries out fault setting, dummycable fault.
As shown in Figure 2, failure tester comprises single-chip microcomputer, acquisition module 5, A/D modular converter 6, data memory module 7 and usb data communicating circuit 8, sampling module 5 comprises voltage sensor, by voltage sensor, record voltage signal, then through A/D modular converter 6, be converted to voltage digital signal, after data memory module 7 storages, by interface circuit, send to display terminal 11 to show, data storage mould 7 is connected with LED display module 10, by LED display module 10, show the voltage gathering, PC control failure tester carries out the collection of cable fault signal, the demonstration of voltage data, store and communicate by letter with host computer.Host computer is notebook computer, and fault test instrument is connected with notebook computer by USB interface, realizes man-machine conversation, and A/D modular converter 6 and data memory module 7 are connected with under-voltage protecting circuit 9.
Cable fault detect educational aid is formed by connecting by notebook computer, failure tester, communication coaxial cable, rheostat, and failure tester is used for gathering fault waveform, communication coaxial cable replacement power cable, and rheostat is used for arranging fault resistance.
Electric cable failure detector has automatic record, storage and shows trouble spot data and the function of carrying out USB communication with upper function, on-the-spot tested voltage signal is converted to corresponding with it voltage signal through voltage sensor, this signal obtains corresponding with it voltage data through the processing of A/D analog to digital conversion and single-chip microcomputer, then these data just can be passed the demonstration of LED display module and be sent on host computer, to these data are done to further processing and preservation.
Electric cable failure detector of the present invention has following feature:
(1) there is data processing function.Can store and computing is two large features of electric cable failure detector tested data.
(2) multiple output form.Cable fault positioning system can be shown in voltage signal and trouble spot on notebook computer light-emitting diode display, and judge output state by two of left and right light emitting diode, to determine the adjusting electric cable failure detector of potentiometer and the global design direction of upper computer software, make it to reach fast balance.
(3) USB communication interface.By USB interface, easily data are sent in host computer, plug and play, supports hot plug.
(4) application of in-system programmable logical device ispLsi-1016, realizes hardware replace by software to facilitate final debugging.
Fig. 3 is coaxial communication cable structural drawing, and coaxial communication cable is by conductor 1, insulation course 2, and tinsel establishment screen layer 3, oversheath 4 four parts form.The primary structure of power cable comprises core conductor, insulation course, screen layer, restrictive coating.Communication coaxial cable and power cable cable have identical primary structure, all to be formed by core, insulation screen and sheath, but coaxial communication cable is easy to carry, area occupied is little, can test calmly indoor, by traveling wave method test cable fault, the waveform effect of its test is the same, so just can replace power cable to carry out fault test teaching with coaxial communication cable.
Fig. 4 is application rheostat simulated failure point resistance schematic diagram.In fault test training, the simulation of various trouble spots is also a difficult point, and this educational aid carrys out the size of dummycable fault resistance with rheostat, by the size adjustment of resistance, simulate short circuit, open circuit, low-resistance fault.
During use, with notebook computer, serve as the display screen of electric cable failure detector, can clearer observation fault waveform, under Windows interface, operate, the Software for Design of hommization, can operate without professional training.And the built-in office automation software of notebook computer, capacity is large, can collect various fault waveforms.By slide rheostat being connected on to end or middle or other position of cable, by regulating the resistance of slide rheostat, thereby gather out different fault waveforms, study the corresponding fault waveform of various faults.
Claims (6)
1. a power cable fault is tested educational aid, it is characterized in that: comprise host computer (a), failure tester (b), rheostat (d), host computer (a) is connected with failure tester (b), by failure tester (b), is carried out Wave data collection, processing and is communicated by letter and send to host computer to show Wave data with host computer (a); Failure tester (b) is connected with rheostat (d) by communication coaxial cable (c), by standardsizing rheostat (d) resistance size, carries out fault setting, dummycable fault; Described failure tester (b) comprises single-chip microcomputer, acquisition module (5), A/D modular converter (6), data memory module (7) and interface circuit.
2. power cable fault according to claim 1 is tested educational aid, it is characterized in that: the single-chip microcomputer of described failure tester receives the instruction that host computer sends, Single-chip Controlling power device produces transmitted wave, then by acquisition module (5), receive reflection wave, and reflection wave is converted to digital signal through A/D modular converter (6), by interface circuit, send to host computer.
3. power cable fault according to claim 1 is tested educational aid, it is characterized in that: the digital signal of described A/D modular converter (6) output, be stored in data memory module (7), described failure tester data memory module is connected with LED display module (10), shows the voltage gathering by LED display module (10).
4. power cable fault according to claim 1 test educational aid, is characterized in that: described PC control failure tester carries out the collection of cable fault signal, the demonstration of voltage data, storage and communicate by letter with host computer.
5. power cable fault test educational aid according to claim 1, is characterized in that: described host computer is notebook computer, and fault test instrument is connected with notebook computer by USB interface, realizes man-machine conversation.
6. power cable fault test educational aid according to claim 1, is characterized in that: A/D modular converter (6) and the data memory module (7) of described failure tester are connected with under-voltage protecting circuit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310410532.8A CN103531059A (en) | 2013-09-10 | 2013-09-10 | Teaching tool for testing faults of power cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310410532.8A CN103531059A (en) | 2013-09-10 | 2013-09-10 | Teaching tool for testing faults of power cable |
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| CN103531059A true CN103531059A (en) | 2014-01-22 |
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| CN201310410532.8A Pending CN103531059A (en) | 2013-09-10 | 2013-09-10 | Teaching tool for testing faults of power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459434A (en) * | 2014-11-11 | 2015-03-25 | 国网河南省电力公司济源供电公司 | 2M wire manufacturing testing tool kit |
| CN104751715A (en) * | 2015-01-29 | 2015-07-01 | 哈尔滨理工大学 | Electric shock fault simulation training device and testing method |
| CN110706568A (en) * | 2019-10-31 | 2020-01-17 | 广州供电局有限公司 | Cable fault simulation device and system |
| CN113838326A (en) * | 2021-09-01 | 2021-12-24 | 国网天津市电力公司 | High tension cable trouble and partial discharge test integration training set |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084639A (en) * | 1992-09-20 | 1994-03-30 | 西安电子科技大学 | Intelligent power cable fault flash tester |
| CN1818691A (en) * | 2005-11-07 | 2006-08-16 | 北京联合大学 | Cable fault positioning system and method |
| CN101241164A (en) * | 2008-01-25 | 2008-08-13 | 东南大学 | Multifunctional electric cable failure detector |
| CN201255761Y (en) * | 2008-08-11 | 2009-06-10 | 重庆大学 | Micro built-in electric cable failure detection instrument |
| CN201402539Y (en) * | 2009-03-19 | 2010-02-10 | 山东科汇电力自动化有限公司 | Simulating device for electrical cable fault test |
| CN101699540A (en) * | 2009-11-16 | 2010-04-28 | 江苏省电力公司常州供电公司 | Cable fault simulation and location system |
| CN201838234U (en) * | 2010-06-02 | 2011-05-18 | 穆成坡 | Coaxial cable test device |
-
2013
- 2013-09-10 CN CN201310410532.8A patent/CN103531059A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084639A (en) * | 1992-09-20 | 1994-03-30 | 西安电子科技大学 | Intelligent power cable fault flash tester |
| CN1818691A (en) * | 2005-11-07 | 2006-08-16 | 北京联合大学 | Cable fault positioning system and method |
| CN101241164A (en) * | 2008-01-25 | 2008-08-13 | 东南大学 | Multifunctional electric cable failure detector |
| CN201255761Y (en) * | 2008-08-11 | 2009-06-10 | 重庆大学 | Micro built-in electric cable failure detection instrument |
| CN201402539Y (en) * | 2009-03-19 | 2010-02-10 | 山东科汇电力自动化有限公司 | Simulating device for electrical cable fault test |
| CN101699540A (en) * | 2009-11-16 | 2010-04-28 | 江苏省电力公司常州供电公司 | Cable fault simulation and location system |
| CN201838234U (en) * | 2010-06-02 | 2011-05-18 | 穆成坡 | Coaxial cable test device |
Non-Patent Citations (1)
| Title |
|---|
| 张栋国: "《电缆故障分析与测试》", 30 September 2005, 中国电力出版社, article "电缆故障分析与测试" * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459434A (en) * | 2014-11-11 | 2015-03-25 | 国网河南省电力公司济源供电公司 | 2M wire manufacturing testing tool kit |
| CN104459434B (en) * | 2014-11-11 | 2017-09-01 | 国网河南省电力公司济源供电公司 | 2M lines make test kit |
| CN104751715A (en) * | 2015-01-29 | 2015-07-01 | 哈尔滨理工大学 | Electric shock fault simulation training device and testing method |
| CN110706568A (en) * | 2019-10-31 | 2020-01-17 | 广州供电局有限公司 | Cable fault simulation device and system |
| CN113838326A (en) * | 2021-09-01 | 2021-12-24 | 国网天津市电力公司 | High tension cable trouble and partial discharge test integration training set |
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Application publication date: 20140122 |