CN105629145A - 10KV insulation tube bus ultrahigh frequency partial discharge detection device - Google Patents
10KV insulation tube bus ultrahigh frequency partial discharge detection device Download PDFInfo
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- CN105629145A CN105629145A CN201610203413.9A CN201610203413A CN105629145A CN 105629145 A CN105629145 A CN 105629145A CN 201610203413 A CN201610203413 A CN 201610203413A CN 105629145 A CN105629145 A CN 105629145A
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- detection device
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- high frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Abstract
The present invention provides a 10KV insulation tube bus ultrahigh frequency partial discharge detection device. The 10KV insulation tube bus ultrahigh frequency partial discharge detection device comprises an ultrahigh frequency antenna, a signal modulation circuit, a high-speed data acquisition card, a synchronizing voltage pickup unit, a host and a touch screen display. The ultrahigh frequency antenna is connected with the signal modulation circuit and the high-speed data acquisition card; the synchronizing voltage pickup unit is connected with the high-speed data acquisition card; the high-speed data acquisition card is connected with the host; and the touch screen display is connected with the host. The 10KV insulation tube bus ultrahigh frequency partial discharge detection device adopts an ultrahigh frequency detection principle to the insulation tube bus on-line partial discharge detection to realize functions of partial discharge signal PRPD spectrum analysis, A/B/C three-phase partial discharge signal analysis and display, partial discharge type analysis, A/B/C three-phase on-line monitoring display, addition in a database, historical data management and the like, is able to provide abundant decision information for technicians. Compared with a traditional electric signal measurement device, the 10KV insulation tube bus ultrahigh frequency partial discharge detection device has good sensitivity and is able to thoroughly isolate power frequency signals to facilitate detection.
Description
Technical field
The invention belongs to power equipment online measuring technique field, in particular to 10kV insulating tube type busbar ultra-high frequency Partial Discharge Detection.
Background technology
In power system, insulating tube type busbar is the novel bus form that a kind of development in recent years is got up, it is mainly used in middle low voltage field, the advantage such as have that current capacity is big, insulating property good, physical dimension is little, it is simple and convenient to install and accommodative ability of environment is strong, therefore in recent years in generating, become the industries such as electricity, petroleum and petrochemical industry, iron and steel and other new energy field obtains the application that gets more and more. In substation, at present its be used as in main transformer, connection conductors between low-tension side and distribution facility, and obtain better effects. Along with insulating tube type busbar application increasingly extensive, the research of its detection technique becomes very important. State of the art in the quality product sold due to different insulative tube type bus manufacturing enterprise and installation process is uneven, it is embodied in insulation layer inside and impurity, micropore, semi-conductive layer projection or lamination defect occur, these all likely cause the generation of shelf depreciation phenomenon, shelf depreciation can develop into electricity tree through accumulation, cause puncturing of major insulation the most at last, thus affect the reliability of electrical network system. In addition, due to insulating tube type busbar intermediate head complex structure, the factor therefore affecting its insulating property is a lot, and intermediate head is that therefore bad technique easily leaves over potential faults in on-the-spot manual manufacture usually. If insulating tube type busbar band defect is run, when generator and transformer low voltage side bus generation fault, differential protection will be started, at this moment will make generator and transformer tripping operation, whole of Influence on test result, power supply system. But traditional electric signal measurement method is not easy to field measurement, and due to electromagnetic environment complexity, therefore freedom from jamming is poor.
Summary of the invention
In order to solve the problem, it is an object of the invention to provide a kind of 10kV insulating tube type busbar ultra-high frequency local discharge detection device.
In order to achieve the above object, 10kV insulating tube type busbar ultra-high frequency local discharge detection device provided by the invention comprises: ultra-high frequency antenna, signal conditioning circuit, high-speed data acquisition card, synchronizing voltage pickup unit, main frame and touch-screen display; Wherein: ultra-high frequency antenna is connected with high-speed data acquisition card by signal conditioning circuit, synchronizing voltage pickup unit is connected with high-speed data acquisition card, and high-speed data acquisition card is connected with main frame, and touch-screen display is connected with main frame.
Described ultra-high frequency antenna is shielding resonant mode ring antenna, which is provided with inside and outside interior conductor and the shielded conductor arranging and be circular arc shape with one heart, the two ends of shielded conductor are respectively equipped with the metal ring that is equivalent to load impedance, and the gap AB between two metal rings is effective output terminal.
Described high-speed data acquisition card is four-way pci interface capture card.
With power current mutual inductor on described synchronizing voltage pickup unit, power current mutual inductor connects high-speed data acquisition card.
Described main frame adopts PC.
Described touch-screen display adopts capacitive touch screen.
The effect of 10kV insulating tube type busbar ultra-high frequency local discharge detection device provided by the invention:
Ultra-high frequency Cleaning Principle is applied in the online Partial Discharge Detection of insulating tube type busbar, local discharge signal PRPD spectral decomposition can be realized, A/B/C three-phase local discharge signal is analyzed and display, shelf depreciation type is diagnosed, A/B/C three-phase on-line monitoring shows, add the function such as database and historical data management to, can be the decision-making information that technician provides abundant. Compare traditional electrical signal measurement apparatus and there is higher sensitivity, can thoroughly isolate power frequency component simultaneously, be conducive to detection.
Accompanying drawing explanation
Fig. 1 is ultra-high frequency antenna assumption diagram in 10kV insulating tube type busbar ultra-high frequency local discharge detection device provided by the invention.
Fig. 2 is 10kV insulating tube type busbar ultra-high frequency local discharge detection device structural representation provided by the invention.
Fig. 3 is this device appearance schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, 10kV insulating tube type busbar ultra-high frequency local discharge detection device provided by the invention is described in detail.
As shown in Figure 2,3,10kV insulating tube type busbar ultra-high frequency local discharge detection device provided by the invention comprises: ultra-high frequency antenna 1, signal conditioning circuit 2, high-speed data acquisition card 3, synchronizing voltage pickup unit 4, main frame 5 and touch-screen display 6; Wherein: ultra-high frequency antenna 1 is connected with high-speed data acquisition card 3 by signal conditioning circuit 2, synchronizing voltage pickup unit 4 is connected with high-speed data acquisition card 3, and high-speed data acquisition card 3 is connected with main frame 5, and touch-screen display 6 is connected with main frame 5.
As shown in Figure 1, described ultra-high frequency antenna 1 is shielding resonant mode ring antenna, which is provided with inside and outside interior conductor 7 and the shielded conductor 8 arranging and be circular arc shape with one heart, it is effective output terminal that the two ends of shielded conductor 8 are respectively equipped with a gap AB being equivalent to load between metal ring 9, two metal ring 9 of impedance. The HF oscillation electric current that incident wave electric field produces on shielded conductor 6 outside surface produces volts lost at AB place, gap, and this is the output voltage of ultra-high frequency antenna 1, and sends load to by interior conductor 7. It receives the signal from source, distant place by the electric current electromagnetic wave power density of arrival changed in the transmission line connecting receiving apparatus, so ultra-high frequency antenna 1 is one, and space electromagnetic wave energy is converted to the energy conversion device of high-frequency current energy; Interior conductor wave resistance is designed to 50 ��, and work frequency band is at 340��430MHz, and mid-frequency is at about 380MHz, and standing-wave ratio curve is in " U " shape; Finish watching from the work frequency band of ultra-high frequency antenna 1 and frequency range and all can meet GIS ultrahigh frequency detection needs; By regulating the metal ring at AB place on it to change loading impedance, thus its standing-wave ratio can be changed, namely change the bandwidth of operation of ultra-high frequency antenna 1, for frequency-selecting detection provides multiple choices.
The electrical signal that described signal conditioning circuit 2 can carry out for main frame 5 analyzing for being converted to by electromagnetic wave signal.
Described high-speed data acquisition card 3 is four-way pci interface capture card, the highest employing rate 40M of single passage, resolving power 14, entrance potential range 5V; For high speed acquisition local discharge signal, it is achieved analog to digital conversion.
With power current mutual inductor on described synchronizing voltage pickup unit 4, power current mutual inductor connects high-speed data acquisition card 3, for gathering power-frequency voltage, exports operating voltage waveform signal, for main frame 5 provides shelf depreciation with reference to phase place signal.
Described main frame 5 adopts PC, is mainly used in the subsequent disposal of data, running software and data base administration (DBM).
Described touch-screen display 6, for man-machine interaction, adopts capacitive touch screen.
Now 10kV insulating tube type busbar ultra-high frequency local discharge detection device principle of work provided by the invention is described below: during use, by technician, ultra-high frequency antenna 1 is directed at 10kV insulating tube type busbar to be detected, and the gap AB size adjusted on it between two metal rings 9 carrys out frequency-selecting, synchronizing voltage pickup unit 4 is connected on power-frequency voltage simultaneously, touch-screen display 6 inputs instruction, then ultra-high frequency antenna 1 is utilized to obtain the shelf depreciation electromagnetic wave signal of 10kV insulating tube type busbar, send signal conditioning circuit 2 afterwards to, by signal conditioning circuit 2, above-mentioned electromagnetic wave signal is converted to the electrical signal can analyzed for main frame 5, and send high-speed data acquisition card 3 to through data cable, above-said current signal and the operating voltage waveform signal that sends by synchronizing voltage pickup unit 4 is sent to main frame 5 afterwards by high-speed data acquisition card 3, local discharge characteristic extraction and pattern recognition is carried out by main frame 5, thus determine defect type and the insulation degradation degree of 10kV insulating tube type busbar local, and show on touch-screen display 6, carry out localization of fault with ancillary works personnel and launch maintenance work, and be other decision-makings offer reference information.
Claims (6)
1. a 10kV insulating tube type busbar ultra-high frequency local discharge detection device, it is characterised in that: described 10kV insulating tube type busbar ultra-high frequency local discharge detection device comprises: ultra-high frequency antenna (1), signal conditioning circuit (2), high-speed data acquisition card (3), synchronizing voltage pickup unit (4), main frame (5) and touch-screen display (6); Wherein: ultra-high frequency antenna (1) is connected with high-speed data acquisition card (3) by signal conditioning circuit (2), synchronizing voltage pickup unit (4) is connected with high-speed data acquisition card (3), high-speed data acquisition card (3) is connected with main frame (5), and touch-screen display (6) is connected with main frame (5).
2. 10kV insulating tube type busbar ultra-high frequency local discharge detection device according to claim 1, it is characterized in that: described ultra-high frequency antenna (1) is shielding resonant mode ring antenna, which is provided with inside and outside interior conductor (7) and the shielded conductor (8) arranging and be circular arc shape with one heart, the two ends of shielded conductor (8) are respectively equipped with the metal ring (9) that is equivalent to load impedance, and the gap AB between two metal rings (9) is effective output terminal.
3. 10kV insulating tube type busbar ultra-high frequency local discharge detection device according to claim 1, it is characterised in that: described high-speed data acquisition card (3) is four-way pci interface capture card.
4. 10kV insulating tube type busbar ultra-high frequency local discharge detection device according to claim 1, it is characterized in that: with power current mutual inductor on described synchronizing voltage pickup unit (4), power current mutual inductor connects high-speed data acquisition card (3).
5. 10kV insulating tube type busbar ultra-high frequency local discharge detection device according to claim 1, it is characterised in that: described main frame (5) adopts PC.
6. 10kV insulating tube type busbar ultra-high frequency local discharge detection device according to claim 1, it is characterised in that: described touch-screen display (6) adopts capacitive touch screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610203413.9A CN105629145A (en) | 2016-03-31 | 2016-03-31 | 10KV insulation tube bus ultrahigh frequency partial discharge detection device |
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| CN201610203413.9A CN105629145A (en) | 2016-03-31 | 2016-03-31 | 10KV insulation tube bus ultrahigh frequency partial discharge detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249112A (en) * | 2016-08-04 | 2016-12-21 | 国网天津市电力公司 | 10kV insulating tube type busbar transition joint partial discharge detecting system |
| CN108535618A (en) * | 2018-07-11 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | A kind of GIS method for detecting insulation defect |
| CN110850276A (en) * | 2019-12-02 | 2020-02-28 | 南通堃享智能电气科技有限公司 | Power equipment for detecting partial circuit |
| CN112258685A (en) * | 2020-10-23 | 2021-01-22 | 安徽烁迅软件有限公司 | Power equipment partial discharge inspection system |
| CN112881949A (en) * | 2021-01-18 | 2021-06-01 | 浙江华电器材检测研究所有限公司 | UHF partial discharge-based insulated puncture wire clamp contact state detection device and method |
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| CN105116304A (en) * | 2015-09-02 | 2015-12-02 | 广东电网有限责任公司电力科学研究院 | Switch cabinet partial discharge detection system |
| CN204855722U (en) * | 2015-07-27 | 2015-12-09 | 国网天津市电力公司 | Insulating tubular busbar partial discharge detector system of 10kV |
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2016
- 2016-03-31 CN CN201610203413.9A patent/CN105629145A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204855722U (en) * | 2015-07-27 | 2015-12-09 | 国网天津市电力公司 | Insulating tubular busbar partial discharge detector system of 10kV |
| CN105116304A (en) * | 2015-09-02 | 2015-12-02 | 广东电网有限责任公司电力科学研究院 | Switch cabinet partial discharge detection system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249112A (en) * | 2016-08-04 | 2016-12-21 | 国网天津市电力公司 | 10kV insulating tube type busbar transition joint partial discharge detecting system |
| CN108535618A (en) * | 2018-07-11 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | A kind of GIS method for detecting insulation defect |
| CN110850276A (en) * | 2019-12-02 | 2020-02-28 | 南通堃享智能电气科技有限公司 | Power equipment for detecting partial circuit |
| CN112258685A (en) * | 2020-10-23 | 2021-01-22 | 安徽烁迅软件有限公司 | Power equipment partial discharge inspection system |
| CN112881949A (en) * | 2021-01-18 | 2021-06-01 | 浙江华电器材检测研究所有限公司 | UHF partial discharge-based insulated puncture wire clamp contact state detection device and method |
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