CN204241572U - High-precision electric cable dielectric loss measurement test sampling apparatus - Google Patents
High-precision electric cable dielectric loss measurement test sampling apparatus Download PDFInfo
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- CN204241572U CN204241572U CN201420700460.0U CN201420700460U CN204241572U CN 204241572 U CN204241572 U CN 204241572U CN 201420700460 U CN201420700460 U CN 201420700460U CN 204241572 U CN204241572 U CN 204241572U
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 238000005070 sampling Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of high-precision electric cable dielectric loss measurement test sampling apparatus, data acquisition unit, photoelectric conversion unit are connected successively with wireless data transmission unit; Described data acquisition unit, photoelectric conversion unit and wireless data transmission unit are arranged in a screen unit; Also comprise receive data by wireless unit, described receive data by wireless unit is connected to wireless data transmission unit by wireless channel.The beneficial effects of the utility model are, by by the unit integrated installation in measuring process in same screen unit, effectively reduce the electromagnetic interference (EMI) of system pressures partially to the impact of measuring, and by wireless transmission unit, the photosignal gathered is transmitted, improve the precision of test specimen cable dielectric loss measurement.
Description
Technical field
The utility model relates to the electrical test complete equipment of power cable, specifically a kind of high-precision electric cable dielectric loss measurement test sampling apparatus.
Background technology
The high-pressure medium loss of power cable is the actual parameter of its integral insulation state of reflection, by the actual motion maintenance work instructing power cable that can be very clear and definite to the measurement of power cable dielectric loss.The sampling unit of high-tension cable medium loss test system is generally made up of capacitive divider, coupling capacitance and data acquisition and measuring system.In prior art, measuring system three is independently, simplicity of design but assembling wiring trouble, and test findings is very easily subject to the impact of externally measured electromagnetic environment.
Utility model content
The purpose of this utility model is to provide a kind of high-precision electric cable dielectric loss measurement test sampling apparatus, simplifies test set-up procedure and reduces the impact of environment on test.
The technical scheme realizing the utility model object is as follows: a kind of high-precision electric cable dielectric loss measurement test sampling apparatus, and data acquisition unit, photoelectric conversion unit are connected successively with wireless data transmission unit; Described data acquisition unit, photoelectric conversion unit and wireless data transmission unit are arranged in a screen unit; Also comprise receive data by wireless unit, described receive data by wireless unit is connected to wireless data transmission unit by wireless channel.
Further, described data acquisition unit comprises: data acquisition end is connected to the input end of data collecting card by coupling capacitance Ck; After detecting reactance Zm, derided capacitors C1, C2 series connection, two ends are connected respectively to data acquisition end and earth terminal; After detecting reactance Zd and resistance R parallel connection, two ends are connected respectively to input end and the earth terminal of data collecting card.
The beneficial effects of the utility model are, by by the unit integrated installation in measuring process in same screen unit, effectively reduce the electromagnetic interference (EMI) of system pressures partially to the impact of measuring, and by wireless transmission unit, the photosignal gathered is transmitted, improve the precision of test specimen cable dielectric loss measurement.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the circuit diagram of the utility model data acquisition unit.
Embodiment
As shown in Figure 1, a kind of high-precision electric cable dielectric loss measurement test sampling apparatus, data acquisition unit, photoelectric conversion unit are connected successively with wireless data transmission unit; Described data acquisition unit, photoelectric conversion unit and wireless data transmission unit are arranged in a screen unit; Also comprise receive data by wireless unit, described receive data by wireless unit is connected to wireless data transmission unit by wireless channel.
Wherein, data acquisition unit is used for the sampling of trial voltage, current in resistance property and capacity current, is connected to the input end of data collecting card by data acquisition end by coupling capacitance Ck; After detecting reactance Zm, derided capacitors C1, C2 series connection, two ends are connected respectively to data acquisition end and earth terminal; After detecting reactance Zd and resistance R parallel connection, two ends are connected respectively to input end and the earth terminal of data collecting card.Data collecting card adopts high--speed multi--channel data acquisition card, and it is poor that synchronous acquisition reduces interchannel collection, and improve the real effectiveness of data, data acquisition unit transfers to photoelectric conversion unit.Photoelectric conversion unit, by the conversion of data transmission format to improve the speed of data transmission and to reduce data degree by external interference in transmitting procedure; Wireless data transmission unit and receive data by wireless unit, wirelessly the dielectric loss measurement data of power cable are carried out transferring to and analyze backstage, change traditional DATA REASONING transmission mode, achieve the possibility directly obtaining test figure from high-pressure side, be conducive to the accuracy improving dielectric loss measurement data.
Above-mentioned data acquisition unit, photoelectric conversion unit and wireless transmission unit are arranged in a screen unit side by side, effectively reduce the electromagnetic interference (EMI) of system pressures partially in this way to the impact of measuring.
During actual use, the collection terminal of data acquisition unit is connected to the cable through experiment power supply pressurization, samples to trial voltage, current in resistance property and capacity current; The data received are transferred to the data analysis unit on backstage to carry out dielectric loss analysis by receive data by wireless unit.
Claims (2)
1. a high-precision electric cable dielectric loss measurement test sampling apparatus, it is characterized in that, data acquisition unit, photoelectric conversion unit are connected successively with wireless data transmission unit; Described data acquisition unit, photoelectric conversion unit and wireless data transmission unit are arranged in a screen unit; Also comprise receive data by wireless unit, described receive data by wireless unit is connected to wireless data transmission unit by wireless channel.
2. high-precision electric cable dielectric loss measurement test sampling apparatus according to claim 1, it is characterized in that, described data acquisition unit comprises: data acquisition end is connected to the input end of data collecting card by coupling capacitance Ck; After detecting reactance Zm, derided capacitors C1, C2 series connection, two ends are connected respectively to data acquisition end and earth terminal; After detecting reactance Zd and resistance R parallel connection, two ends are connected respectively to input end and the earth terminal of data collecting card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700460.0U CN204241572U (en) | 2014-11-19 | 2014-11-19 | High-precision electric cable dielectric loss measurement test sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700460.0U CN204241572U (en) | 2014-11-19 | 2014-11-19 | High-precision electric cable dielectric loss measurement test sampling apparatus |
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| Publication Number | Publication Date |
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| CN204241572U true CN204241572U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420700460.0U Active CN204241572U (en) | 2014-11-19 | 2014-11-19 | High-precision electric cable dielectric loss measurement test sampling apparatus |
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| Country | Link |
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| CN (1) | CN204241572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252990A (en) * | 2021-04-23 | 2021-08-13 | 深圳供电局有限公司 | Cable dielectric loss testing device |
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2014
- 2014-11-19 CN CN201420700460.0U patent/CN204241572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252990A (en) * | 2021-04-23 | 2021-08-13 | 深圳供电局有限公司 | Cable dielectric loss testing device |
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