CN202758019U - Zinc oxide lightning arrester characteristic tester - Google Patents
Zinc oxide lightning arrester characteristic tester Download PDFInfo
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- CN202758019U CN202758019U CN 201220396108 CN201220396108U CN202758019U CN 202758019 U CN202758019 U CN 202758019U CN 201220396108 CN201220396108 CN 201220396108 CN 201220396108 U CN201220396108 U CN 201220396108U CN 202758019 U CN202758019 U CN 202758019U
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Abstract
The utility model discloses a zinc oxide lightning arrester characteristics tester, comprising a voltage channel module, a current channel module, a wireless transceiver module, a host computer, an output display device and an output printing device, wherein the voltage channel module is connected with the current channel module through the wireless transceiver module, the current channel module is connected with the host computer, and the host computer is respectively connected with the output display device and the output printing device. According to the zinc oxide lightning arrester characteristics tester, the current transducer and the voltage transducer are arranged separately and are in a wireless connection through the wireless transceiver module, thus the long-distance transmission and synchronous acquisition of measurement data of the zinc oxide lightning arrester are realized, the field wiring is simplified, and the influences of surrounding interference factors on the measurement data precision are avoided; and the zinc oxide lightning arrester characteristics tester has the advantages of simple structure, convenient operation, high accuracy, and stability and reliability.
Description
Technical field
The utility model relates to the power test Instrument technology field, particularly a kind of Zinc-Oxide Arrester characteristic tester.
Background technology
Metal oxide arrester is widely used in electric system with its superior nonlinear characteristic.Because the lightning arrester long-term work is under working voltage, repeatedly bear various impacts of crossing piezoelectric voltages, add the valve block reason such as aging of making moist, along with passage of time, the overall performance of lightning arrester descends gradually.
At present, metal oxide arrester mainly is comprehensively to judge its operation characteristic by band electro-detection and offline inspection.Existing metal oxide arrester band electro-detection adopts the detection methods such as total Leakage Current, resistive current first harmonics and third harmonic mostly, but owing to often having certain distance between voltage sensor and the current sensor, the collection of voltage signal and current signal often can not be synchronous, and the interference that long distance field wiring is subject to is very serious, and the data precision that measures is not high.The field wiring workload is very large in addition, wastes time and energy.
The utility model content
The utility model provides a kind of Zinc-Oxide Arrester characteristic tester, can solve the existing line wiring of prior art medium and long distance complicated, easily be disturbed, the problem such as measure data precision is not high, and labour intensity is large.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of Zinc-Oxide Arrester characteristic tester is provided, comprise voltage channel module, current channel module, radio receiving transmitting module, host computer, output display device and output print device, described voltage channel module is connected with described current channel module by described radio receiving transmitting module, described current channel module links to each other with described host computer, and described host computer links to each other with described output display device and described output print device respectively; Wherein, described radio receiving transmitting module is sent to the voltage data of described voltage channel module in the described current channel module, and described current channel module is sent to the current data of described voltage data and described current channel module in the described host computer together.
According to the utility model one preferred embodiment, described voltage channel module comprises voltage sensor unit, voltage amplification unit and voltage signal processing unit, described voltage sensor unit, described voltage amplification unit and described voltage signal processing unit link to each other successively, and described voltage signal processing unit links to each other with described radio receiving transmitting module.
According to the utility model one preferred embodiment, described voltage signal processing unit comprises the one A/D(analog-digital/digital-to-analogue) converter, the first programmable gate array, the first single-chip microcomputer and the first random access memory, a described A/D (digital-to-analogue) converter, described the first programmable gate array, described the first single-chip microcomputer are connected successively with described the first random access memory, described the first single-chip microcomputer links to each other with the control end of described voltage amplification unit, and described the first A/D converter links to each other with the data output end of described voltage amplification unit.
According to the utility model one preferred embodiment, described the first A/D converter is 10 bit parallel chip C196KC.
According to the utility model one preferred embodiment, described current channel module comprises current sensor unit, current amplification unit and current signal processing unit, described current sensor unit, described current amplification unit and described current signal processing unit link to each other successively, and described current signal processing unit links to each other with described host computer; Described current signal processing unit links to each other with described radio receiving transmitting module.
According to the utility model one preferred embodiment, described current signal processing unit comprises the second A/D converter, the second programmable gate array, second singlechip and the second random access memory, described the second A/D converter, described the second programmable gate array, described second singlechip are connected successively with described the second random access memory, described second singlechip links to each other with the control end of described current amplification unit, and described the second A/D converter links to each other with the data output end of described current amplification unit.
According to the utility model one preferred embodiment, described the second A/D converter is 10 bit parallel chip C196KC.
According to the utility model one preferred embodiment, described output display device is the TFT(Thin Film Transistor (TFT)) very color liquid crystal display.
The beneficial effects of the utility model are: the disclosed Zinc-Oxide Arrester characteristic tester of the utility model is arranged apart with current sensor and voltage sensor, and by the radio receiving transmitting module wireless connections, when voltage signal processing unit is sent synch command to the current signal processing unit by radio receiving transmitting module, voltage sensor and current sensor gather voltage signal and current signal simultaneously, the voltage signal that gathers amplifies by voltage signal processing unit through the voltage signal amplifying unit processes amplitude and the phase place that obtains three-phase voltage, the current signal that gathers amplifies amplitude and the phase place that obtains three-phase current by the current signal processing unit processes through the current signal amplifying unit, the amplitude of three-phase voltage and phase place send to the current signal processing unit by radio receiving transmitting module again, amplitude and phase place with three-phase current sends to host computer after treatment, process computing by master system software, finally show test results by output display device and output print device, thereby long-distance transmissions and the synchronous acquisition of Zinc-Oxide Arrester measurement data have been realized, simplify field wiring, avoided peripheral disturbing factor on the impact of measure data precision.Therefore, the utlity model has characteristics simple in structure, easy and simple to handle, that accuracy is high and reliable and stable.
Description of drawings
Fig. 1 is the principle schematic of the utility model Zinc-Oxide Arrester characteristic tester one preferred embodiment.
Fig. 2 is the structural representation of the voltage signal processing unit among Fig. 1.
Fig. 3 is the structural representation of the current signal processing unit among Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, the utility model embodiment provides a kind of Zinc-Oxide Arrester characteristic tester, comprise voltage channel module 1, current channel module 2, radio receiving transmitting module 3, host computer 4, output display device 5 and output print device 6, voltage channel module 1 is connected with current channel module 2 by radio receiving transmitting module 3, current channel module 2 links to each other with host computer 4, and host computer 4 links to each other with output display device and 5 output print devices 6 respectively; Wherein, radio receiving transmitting module 3 is sent to the voltage data of voltage channel module 1 in the current channel module 2, and current channel module 2 is sent to the current data of voltage data and current channel module 2 in the host computer 4 together.
Please continue to consult Fig. 1, voltage channel module 1 comprises voltage sensor unit 101, voltage amplification unit 102 and voltage signal processing unit 103, voltage sensor unit 101, voltage amplification unit 102 and voltage signal processing unit 103 link to each other successively, and voltage signal processing unit 103 links to each other with radio receiving transmitting module 3.Wherein, voltage sensor unit 101 is comprised of three induction voltage transformer (VT) of passive linear, and an end of voltage sensor unit 101 links to each other with voltage sensor lead wire.
As shown in Figure 2, in the present embodiment, voltage signal processing unit 103 comprises an A/D(modulus) converter 10301, the first programmable gate array 10302, the first single-chip microcomputer 10303 and the first random access memory 10304, the first A/D converter 10301, the first programmable gate array 10302, the first single-chip microcomputer 10303 are connected successively with the first random access memory 10304, the first single-chip microcomputer 10303 links to each other with the control end of voltage amplification unit 102, and the first A/D converter 10301 links to each other with the data output end of voltage amplification unit 102.Wherein, the first A/D converter 10301 is 10 bit parallel chip C196KC.
Please continue with reference to figure 1, current channel module 2 comprises current sensor unit 201, current amplification unit 202 and current signal processing unit 203, current sensor unit 201, current amplification unit 202 and current signal processing unit 203 link to each other successively, and current signal processing unit 203 links to each other with host computer 4; Current signal processing unit 203 links to each other with radio receiving transmitting module 3.Wherein, current sensor unit 201 is comprised of three induction current transformers of passive linear, and an end of current sensor unit 201 links to each other with the current sensor lead-in wire.
As shown in Figure 3, in the present embodiment, current signal processing unit 203 comprises the second A/D converter 20301, the second programmable gate array 20302, second singlechip 20303 and the second random access memory 20304, the second A/D converter 20301, the second programmable gate array 20302, second singlechip 20303 are connected successively with the second random access memory 20304, second singlechip 20303 links to each other with the control end of current amplification unit 202, and the second A/D converter 20301 links to each other with the data output end of current amplification unit 202.Wherein, the second A/D converter 20301 is 10 bit parallel chip C196KC.
The current signal that current sensor unit 201 collects obtains amplitude and the phase place of three-phase current again through current amplification unit 202 amplifications after overcurrent signal processing unit 203 is processed, and resulting data is deposited in the second random access memory 20304 of current signal processing unit 203.
Current signal processing unit 203 and host computer 4 link to each other by pci bus, current signal processing unit 203 is sent to the three-phase voltage that obtains, amplitude and the phase data of three-phase current in the host computer 4 together, and host computer 4 shows resulting result by output display device 5 and output print device 6 after by the software program calculation process.In the present embodiment, output display device 5 is the TFT(Thin Film Transistor (TFT)) very color liquid crystal display.Host computer 4 is industrial computer, can realize the transmission of data and human-computer interactive control signal.
The use procedure of the utility model Zinc-Oxide Arrester characteristic tester is as follows: when the three-phase high-voltage wire belt electricity of detected Zinc-Oxide Arrester group (lightning arrester that comprises A B C three-phase) upper end normally moves, with the lead-in wire of the voltage sensor unit 101 of Zinc-Oxide Arrester characteristic tester and the PT(potential transformer of this three-phase high-voltage electric wire, mutual inductor) secondary side links to each other, the lead-in wire of the current sensor unit 201 of Zinc-Oxide Arrester characteristic tester is linked to each other with the low pressure end of detected Zinc-Oxide Arrester group, and in the no-load voltage ratio parameter input Zinc-Oxide Arrester characteristic tester with PT, after pressing " beginning " test button, the Zinc-Oxide Arrester characteristic tester begins the measurement of three-phase voltage and the three-phase current of Zinc-Oxide Arrester group automatically, measure respectively three-phase voltage and flow through amplitude and the phase place of the three-phase current of Zinc-Oxide Arrester group, and process computing at last with total Leakage Current of Zinc-Oxide Arrester group by software, first-harmonic and the third harmonic of current in resistance property show by output display device respectively.
Wherein, the voltage signal that voltage sensor unit 101 collects obtains amplitude and the phase place of three-phase voltage after voltage amplification unit 102 amplifies again through voltage signal processing unit 103 processing, and resulting data is deposited in the first random access memory 10304 of voltage signal processing unit 103.Particularly, first send the beginning acquisition by the first single-chip microcomputer 10303 to the first programmable gate array 10302, the first programmable gate array 10302 controls the first A/D converter 10301 begins to carry out analog to digital conversion, resulting translation data transmits and is stored in the first random access memory 10304 through the first programmable gate array 10302, the first single-chip microcomputer 10303 calls the data in the first random access memory 10304 and carries out data according to the computing formula of pre-set programs and calculate, and the data that the three-phase voltage that obtains is finished in calculating are deposited in the first random access memory 10304.
The current signal that current sensor unit 201 collects obtains amplitude and the phase place of three-phase current again through current amplification unit 202 amplifications after overcurrent signal processing unit 203 is processed, and resulting data is deposited in the second random access memory 20304 of current signal processing unit 203.Particularly, first send the beginning acquisition by second singlechip 20303 to the second programmable gate array 20302, the second programmable gate array 20302 controls the second A/D converter 20301 begins to carry out analog to digital conversion, resulting translation data transmits and is stored in the second random access memory 20304 through the second programmable gate array 20302, second singlechip 20303 calls the data in the second random access memory 20304 and carries out data according to the computing formula of pre-set programs and calculate, and the data that the three-phase current that obtains is finished in calculating are deposited in the second random access memory 20304.
After data acquisition and storage are finished, after the amplitude and phase data modulation of radio receiving transmitting module 3 with the three-phase voltage in the first random access memory 10304 of voltage signal processing unit 103, be sent to by wireless telecommunications in the second random access memory 20304 of current signal processing unit 203.Wherein, when voltage signal processing unit 103 is carried out the data transmission, send data read command by the first single-chip microcomputer 10303 to the first programmable gate array 10302, the first single-chip microcomputer 10303 sends the synchronous acquisition order simultaneously, and the first single-chip microcomputer 10303 sends to the three-phase voltage data in the first random access memory 10304 and synchronous acquisition order in the radio receiving transmitting module 3 through the parallel port together.When current signal processing unit 203 carries out data receiver, send the data access order by second singlechip 20303 to the second programmable gate array 20302, second singlechip 20303 deposits three-phase voltage data and the synchronous acquisition order that its parallel port receives in the second random access memory 20304 in from radio receiving transmitting module 3, second singlechip 20304 recognizes the synchronous acquisition order, at once begins to control the synchronous acquisition of three-phase current.
In sum, those skilled in the art easily understand, the disclosed Zinc-Oxide Arrester characteristic tester of the utility model is arranged apart with current sensor and voltage sensor, and by the radio receiving transmitting module wireless connections, when voltage signal processing unit is sent synch command to the current signal processing unit by radio receiving transmitting module, voltage sensor and current sensor gather voltage signal and current signal simultaneously, the voltage signal that gathers amplifies by voltage signal processing unit through the voltage signal amplifying unit processes amplitude and the phase place that obtains three-phase voltage, the current signal that gathers amplifies amplitude and the phase place that obtains three-phase current by the current signal processing unit processes through the current signal amplifying unit, the amplitude of three-phase voltage and phase place send to the current signal processing unit by radio receiving transmitting module again, amplitude and phase place with three-phase current sends to host computer after treatment, process computing by master system software, finally show test results by output display device and output print device, thereby long-distance transmissions and the synchronous acquisition of Zinc-Oxide Arrester measurement data have been realized, simplify field wiring, avoided peripheral disturbing factor on the impact of measure data precision.The utlity model has characteristics simple in structure, easy and simple to handle, that accuracy is high and reliable and stable.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (8)
1. Zinc-Oxide Arrester characteristic tester, it is characterized in that, comprise voltage channel module, current channel module, radio receiving transmitting module, host computer, output display device and output print device, described voltage channel module is connected with described current channel module by described radio receiving transmitting module, described current channel module links to each other with described host computer, and described host computer links to each other with described output display device and described output print device respectively; Wherein, described radio receiving transmitting module is sent to the voltage data of described voltage channel module in the described current channel module, and described current channel module is sent to the current data of described voltage data and described current channel module in the described host computer together.
2. Zinc-Oxide Arrester characteristic tester according to claim 1, it is characterized in that, described voltage channel module comprises voltage sensor unit, voltage amplification unit and voltage signal processing unit, described voltage sensor unit, described voltage amplification unit and described voltage signal processing unit link to each other successively, and described voltage signal processing unit links to each other with described radio receiving transmitting module.
3. Zinc-Oxide Arrester characteristic tester according to claim 2, it is characterized in that, described voltage signal processing unit comprises the first A/D converter, the first programmable gate array, the first single-chip microcomputer and the first random access memory, described the first A/D converter, described the first programmable gate array, described the first single-chip microcomputer are connected successively with described the first random access memory, described the first single-chip microcomputer links to each other with the control end of described voltage amplification unit, and described the first A/D converter links to each other with the data output end of described voltage amplification unit.
4. Zinc-Oxide Arrester characteristic tester according to claim 3 is characterized in that, described the first A/D converter is 10 bit parallel chip C196KC.
5. Zinc-Oxide Arrester characteristic tester according to claim 1, it is characterized in that, described current channel module comprises current sensor unit, current amplification unit and current signal processing unit, described current sensor unit, described current amplification unit and described current signal processing unit link to each other successively, and described current signal processing unit links to each other with described host computer; Described current signal processing unit links to each other with described radio receiving transmitting module.
6. Zinc-Oxide Arrester characteristic tester according to claim 5, it is characterized in that, described current signal processing unit comprises the second A/D converter, the second programmable gate array, second singlechip and the second random access memory, described the second A/D converter, described the second programmable gate array, described second singlechip are connected successively with described the second random access memory, described second singlechip links to each other with the control end of described current amplification unit, and described the second A/D converter links to each other with the data output end of described current amplification unit.
7. Zinc-Oxide Arrester characteristic tester according to claim 6 is characterized in that, described the second A/D converter is 10 bit parallel chip C196KC.
8. Zinc-Oxide Arrester characteristic tester according to claim 1 is characterized in that, described output display device is the very color liquid crystal display of TFT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220396108 CN202758019U (en) | 2012-08-12 | 2012-08-12 | Zinc oxide lightning arrester characteristic tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220396108 CN202758019U (en) | 2012-08-12 | 2012-08-12 | Zinc oxide lightning arrester characteristic tester |
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| CN202758019U true CN202758019U (en) | 2013-02-27 |
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| CN 201220396108 Expired - Fee Related CN202758019U (en) | 2012-08-12 | 2012-08-12 | Zinc oxide lightning arrester characteristic tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929284A (en) * | 2016-06-24 | 2016-09-07 | 国网辽宁省电力有限公司抚顺供电公司 | Wireless tester and testing method for live-line measuring zinc oxide arrester |
| CN106291202A (en) * | 2016-09-23 | 2017-01-04 | 国家电网公司 | A kind of electrical characteristic test device of transformer station low voltage surge arrester |
| CN113009263A (en) * | 2021-03-08 | 2021-06-22 | 国网山东省电力公司青州市供电公司 | Embedded system and method for collecting monitoring data of zinc oxide arrester |
-
2012
- 2012-08-12 CN CN 201220396108 patent/CN202758019U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929284A (en) * | 2016-06-24 | 2016-09-07 | 国网辽宁省电力有限公司抚顺供电公司 | Wireless tester and testing method for live-line measuring zinc oxide arrester |
| CN106291202A (en) * | 2016-09-23 | 2017-01-04 | 国家电网公司 | A kind of electrical characteristic test device of transformer station low voltage surge arrester |
| CN106291202B (en) * | 2016-09-23 | 2019-04-30 | 国家电网公司 | A kind of electrical characteristic test device of substation's low voltage surge arrester |
| CN113009263A (en) * | 2021-03-08 | 2021-06-22 | 国网山东省电力公司青州市供电公司 | Embedded system and method for collecting monitoring data of zinc oxide arrester |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150812 |
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