CN104898030A - Extra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference testing method and mobile platform - Google Patents
Extra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference testing method and mobile platform Download PDFInfo
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- CN104898030A CN104898030A CN201510220517.6A CN201510220517A CN104898030A CN 104898030 A CN104898030 A CN 104898030A CN 201510220517 A CN201510220517 A CN 201510220517A CN 104898030 A CN104898030 A CN 104898030A
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Abstract
The invention discloses an extra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference testing method and mobile platform. The technical scheme provided by the invention is as follows: a shielding band is arranged on a GIS device, the shielding band is provided with a detection port, and the detection port is opposite to a metal tape opening on the GIS device; an ultrahigh frequency sensor is arranged at the detection port, the ultrahigh frequency sensor is in close contact with the GIS device, the ultrahigh frequency sensor is sleeved by a shielding bag, and the bag port of the shielding bag is in close contact connection with the shielding band outside the detection port so as to form a shielding cavity; and the ultrahigh frequency sensor is connected with a detection instrument on a mobile casing through a connecting line, the lower portion of the mobile casing is provided with a storage battery pack, and the detection instrument processes signals emitted by the ultrahigh frequency sensor and displays a detection result or uploads the display result to a host computer. According to the invention, the ultrahigh frequency sensor is arranged in an enclosed space formed by the GIS device and a shielding apparatus, such that interference of external electromagnetic waves is effectively inhibited, and high detection sensitivity is ensured.
Description
technical field:
The present invention relates to office of a kind of transformer station and put testing apparatus, particularly relate to a kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform.
background technology:
On-site experience shows, insulation fault is one of major reason affecting 500kVGIS/HGIS reliability service, and insulation fault usually originates from deterioration and defect that inner shelf depreciation causes.The deterioration of shelf depreciation and insulating material and puncture closely related, it is the reason of insulation degradation, be again tendency and the form of expression of insulation degradation, the latency insulation defect of the built-in electrical insulation situation of equipment, timely and effectively discovering device inside can be reflected, avoid the generation of sudden accident.
At present, economize net 500kV spy/UHV (ultra-high voltage) and 34, converting plant, be mostly GIS/HGIS transformer station.Wherein, 9 is the GIS/HGIS equipment being with metal basin, is about to the full GIS/HGIS for band metal basin put into operation.The maintenance of current GIS device is mainly based on prophylactic repair, and the actual subject matter run into is as follows:
1) because spy/Ultra-high Voltage Substations electric pressure is high, high-intensity magnetic field and disturb the features such as large, GIS ultrahigh frequency Partial Discharge Detection is very easily affected and even cannot carries out, and the phenomenons such as test leakage, erroneous judgement, by mistake survey occur often, and even surveying work cannot carry out;
2) because disc insulator in metal basin GIS device have employed metal tape weather resisteant guard technology, cause the inner local discharge signal conductively-closed of GIS, measure and cannot carry out; Even if the metal tape perforate of disc insulator outer, also due to little, the most of signal conductively-closed of bore size, measurement validity is greatly affected.
3), during existing detecting instrument on-the-spot test, need to draw from service chamber to connect alternating current 220V power supply, when detecting multiple GIS check point, inefficiency.
summary of the invention:
Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, provides a kind of reasonable in design, good test effect, flexibly mobile and the ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method that work efficiency is high and mobile platform.
Technical scheme of the present invention is:
A kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, comprises the following steps:
A, in GIS device, arrange mask tape, be provided with detection mouth on the shield tape, this detection mouth is corresponding with the metal tape opening in GIS device;
B, arrange superfrequency sensor at detection mouth place, this superfrequency sensor and GIS device close contact, superfrequency sensor is set with shielding bag, and the sack of shielding bag is connected with the mask tape close contact detected outside mouth, and formation shields cavity;
C, superfrequency sensor are connected with the detecting instrument on portable casing by connecting line, the bottom of portable casing is provided with battery pack, this battery pack provides power supply for detecting instrument, the signal that superfrequency sensor sends processes by detecting instrument, and testing result is shown or upload to host computer.
A kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform, comprise portable casing and superfrequency sensor, described superfrequency sensor setting is at the metal tape opening part of GIS device, this superfrequency sensor and GIS device close contact, described GIS device arranges mask tape, described mask tape is provided with detection mouth, this detection mouth is corresponding with the metal tape opening in described GIS device; Described superfrequency sensor is set with shielding bag, and the sack of described shielding bag is connected with the described mask tape close contact detected outside mouth, forms shielding cavity; Described superfrequency sensor is connected with the detecting instrument on described portable casing by connecting line, and the bottom of described portable casing is provided with battery pack, and this battery pack provides power supply for described detecting instrument.
Described superfrequency sensor contains metal shell, this metal shell is the enclosed type cavity of open at one end, signal amplifier and microstrip antenna is provided with in the inner chamber of described metal shell, the body wall of described metal shell is provided with attachment plug, the opening end shape of described metal shell and size match with the metal tape opening shape of GIS device and size respectively, and the opening end arranged outside of described metal shell has radome.
Described radome is made up of silver-colored fiber, and described attachment plug is aviation plug, N-type interface; Described metal shell is barrel shaped structure and opening end is arcuate structure, and the outer end of described radome is provided with outside flange.
The bottom of described portable casing is provided with roller, described casing is split modular structure, by upper box body, middle part casing and lower part box combine, described upper box body arranges upper and lower two cavitys, the bottom of upper cavity is provided with cushion, the cover wall of upper cavity is provided with elastic press, described cushion is provided with testing tool, lower cavity is provided with drawer, described middle part casing is provided with drawer, battery pack is provided with in described lower part box, and, the tank wall of described lower part box is provided with exhaust fan, Testing apparatus is respectively arranged with in described drawer, connecting line and operation tool.
Adjacent described upper box body, respectively locating groove and be connected kayser between middle part casing and lower part box, the both sides end face of described upper box body and middle part casing is respectively arranged with groove or handle; Described casing is made up of boxboard and buckle limit, and described buckle limit is arranged on the seamed edge of described casing; Described lower part box is provided with drawer, is provided with alternating current connecting line in described lower part box, realizes dual power supply; Described accumulator is lithium battery.
The invention has the beneficial effects as follows:
1, sensor metal shell of the present invention and GIS disc insulator stitch and are tightly connected, partial-discharge ultrahigh-frequency electromagenetic wave radiation is received to GIS is external by microstrip antenna by disc insulator, spread out of after signal amplifier, signal is strong, good test effect, in addition, metal shell is arranged in an enclosure space being formed between disc insulator and shield assembly, the interference of effective suppression external electromagnetic waves, ensure that the high sensitivity of detection.
2, the present invention adopts silver-colored fiber to make radome, and shield effectiveness is good, and its shielding high-frequency electromagnetic wave frequency range is 30MHZ-10GHZ, greatly improves test effect.
3, mobile platform of the present invention adopts combined-type box body structure, can arrange testing tool, power supply and connecting line respectively in different casing, bottom half arranges roller, convenient mobile, office can be carried out without the need to external power supply and put test, the high and good test effect of work efficiency.
Be provided with locating groove and be connected kayser between the adjacent boxes of 4, mobile platform of the present invention, can keep the fixed position of adjacent boxes, prevent from mutually throwing off in moving process, its overall construction intensity is high, and can dismantle, easy to use.
Arrange cushion and elastic press in the upper box body upper space of 5, mobile platform of the present invention, can locate and protect detecting instrument, security is good.Further, casing is made up of boxboard and buckle limit, and intensity is high, and in addition, the drawer of casing is provided with kayser and handle, easy to use.
In the lower part box of 6, mobile platform of the present invention, exhaust fan is installed, increases radiating effect, prevent power supply from damage, the reliability of raising work.
7, reasonable in design, the good test effect of the present invention, flexibly mobile and work efficiency is high, and adopt aviation plug, N-type interface as attachment plug, highly versatile, has stronger popularizing application prospect.
accompanying drawing illustrates:
Fig. 1 is the structural representation of mobile platform of the present invention.
Fig. 2 is the structural representation of superfrequency sensor of the present invention.
embodiment:
Embodiment: see in Fig. 1 and Fig. 2, figure, 1-roller, 2-exhaust fan, 3-boxboard, 4-buckle limit, 5-connects kayser, 6-groove, 7-case lid, 8-elastic press, 9-testing tool, 10-cushion, 11-drawer, and 12-shakes hands.21-radome, 22-metal shell, 23-microstrip antenna, 24-signal amplifier, 25-attachment plug.
Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, comprises the following steps:
A, in GIS device, arrange mask tape, be provided with detection mouth on the shield tape, this detection mouth is corresponding with the metal tape opening in GIS device;
B, arrange superfrequency sensor at detection mouth place, this superfrequency sensor and GIS device close contact, superfrequency sensor is set with shielding bag, and the sack of shielding bag is connected with the mask tape close contact detected outside mouth, and formation shields cavity;
C, superfrequency sensor are connected with the detecting instrument on portable casing by connecting line, the bottom of portable casing is provided with battery pack, this battery pack provides power supply for detecting instrument, the signal that superfrequency sensor sends processes by detecting instrument, and testing result is shown or upload to host computer.
Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform, comprise portable casing and superfrequency sensor, wherein: superfrequency sensor setting is at the metal tape opening part of GIS device, this superfrequency sensor and GIS device close contact, GIS device arranges mask tape, mask tape is provided with detection mouth, this detection mouth is corresponding with the metal tape opening in GIS device; Superfrequency sensor is set with shielding bag, and the sack of shielding bag is connected with the mask tape close contact detected outside mouth, forms shielding cavity; Superfrequency sensor is connected with the detecting instrument on portable casing by connecting line, and the bottom of portable casing is provided with battery pack, and this battery pack provides power supply for detecting instrument.
Superfrequency sensor contains metal shell 22, metal shell 22 is the enclosed type cavity of open at one end, wherein: in the inner chamber of metal shell 22, be provided with signal amplifier 24 and microstrip antenna 23, the body wall of metal shell 22 is provided with attachment plug 25, the opening end shape of metal shell 22 and size match with metal disc insulator hole shape and size respectively, and the opening end arranged outside of metal shell 22 has radome 21.
Radome 21 is made up of silver-colored fiber, and attachment plug 25 is aviation plug, N-type interface.Metal shell 22 is barrel shaped structure, and its opening end is arcuate structure, and the outer end of radome 21 is provided with outside flange.
The bottom of portable casing is provided with roller 1, wherein: casing is split modular structure, by upper box body, middle part casing and lower part box combine, upper box body arranges upper and lower two cavitys, the bottom of upper cavity is provided with cushion 10, case lid 7 inwall of upper cavity is provided with elastic press 8, cushion 10 is provided with testing tool 9, lower cavity is provided with drawer 11, middle part casing is provided with drawer 11, all drawers 11 are provided with handle 12 and lockset, battery pack (not shown in FIG.) is provided with in lower part box, and, the tank wall of lower part box is provided with exhaust fan 2, Testing apparatus is respectively arranged with in drawer 11, connecting line and operation tool.
Adjacent upper casing, respectively locating groove and is connected kayser 5 between middle part casing and lower part box, the both sides end face of upper box body and middle part casing is respectively arranged with groove 6, can be also handle, is convenient to mention locally casing.
Casing is made up of boxboard 3 and buckle limit 4, and buckle limit 4 is arranged on the seamed edge of casing; Lower part box is provided with drawer 11, is provided with alternating current connecting line in lower part box, realizes dual power supply; Battery pack is lithium battery.
During use, upper box body, middle part casing and lower part box link together, operating personnel promote casing and can to walk detection site, open case lid 7, testing tool 9 is connected with superfrequency sensor by connecting line, partial-discharge ultrahigh-frequency electromagenetic wave radiation is received to GIS is external by microstrip antenna 23, spread out of after signal amplifier 24, its signal is strong, good test effect, in addition, metal shell 22 is arranged in enclosure space, the interference of effective suppression external electromagnetic waves, ensure that the high sensitivity of detection.Bottom half arranges roller 1, convenient mobile, can carry out office put test without the need to external power supply, the high and good test effect of work efficiency.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, comprises the following steps:
A, in GIS device, arrange mask tape, be provided with detection mouth on the shield tape, this detection mouth is corresponding with the metal tape opening in GIS device;
B, arrange superfrequency sensor at detection mouth place, this superfrequency sensor and GIS device close contact, superfrequency sensor is set with shielding bag, and the sack of shielding bag is connected with the mask tape close contact detected outside mouth, and formation shields cavity;
C, superfrequency sensor are connected with the detecting instrument on portable casing by connecting line, the bottom of portable casing is provided with battery pack, this battery pack provides power supply for detecting instrument, the signal that superfrequency sensor sends processes by detecting instrument, and testing result is shown or upload to host computer.
2. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 1, it is characterized in that: superfrequency sensor contains metal shell, this metal shell is the enclosed type cavity of open at one end, signal amplifier and microstrip antenna is provided with in the inner chamber of metal shell, the body wall of metal shell is provided with attachment plug, the opening end shape of metal shell and size match with the metal tape opening shape of GIS device and size respectively, have radome in the opening end arranged outside of metal shell.
3. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 2, is characterized in that: radome is made up of silver-colored fiber, and attachment plug is aviation plug, N-type interface; Metal shell is barrel shaped structure, and its opening end is arcuate structure, and the outer end of radome is provided with outside flange.
4. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 1, it is characterized in that: the bottom of portable casing is provided with roller, casing is split modular structure, by upper box body, middle part casing and lower part box combine, upper box body arranges upper and lower two cavitys, the bottom of upper cavity is provided with cushion, the cover wall of upper cavity is provided with elastic press, cushion is provided with testing tool, lower cavity is provided with drawer, middle part casing is provided with drawer, battery pack is provided with in lower part box, and, the tank wall of lower part box is provided with exhaust fan, Testing apparatus is respectively arranged with in drawer, connecting line and operation tool.
5. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 4, it is characterized in that: adjacent upper casing, respectively locating groove and be connected kayser between middle part casing and lower part box, the both sides end face of upper box body and middle part casing is respectively arranged with groove or handle; Casing is made up of boxboard and buckle limit, and buckle limit is arranged on the seamed edge of casing; Lower part box is provided with drawer, is provided with alternating current connecting line in lower part box, realizes dual power supply; Accumulator is lithium battery.
6. a ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform, comprise portable casing and superfrequency sensor, it is characterized in that: described superfrequency sensor setting is at the metal tape opening part of GIS device, this superfrequency sensor and GIS device close contact, described GIS device arranges mask tape, described mask tape is provided with detection mouth, this detection mouth is corresponding with the metal tape opening in described GIS device; Described superfrequency sensor is set with shielding bag, and the sack of described shielding bag is connected with the described mask tape close contact detected outside mouth, forms shielding cavity; Described superfrequency sensor is connected with the detecting instrument on described portable casing by connecting line, and the bottom of described portable casing is provided with battery pack, and this battery pack provides power supply for described detecting instrument.
7. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 6, it is characterized in that: described superfrequency sensor contains metal shell, this metal shell is the enclosed type cavity of open at one end, signal amplifier and microstrip antenna is provided with in the inner chamber of described metal shell, the body wall of described metal shell is provided with attachment plug, the opening end shape of described metal shell and size match with the metal tape opening shape of GIS device and size respectively, and the opening end arranged outside of described metal shell has radome.
8. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 7, is characterized in that: described radome is made up of silver-colored fiber, and described attachment plug is aviation plug, N-type interface; Described metal shell is barrel shaped structure and opening end is arcuate structure, and the outer end of described radome is provided with outside flange.
9. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 6, it is characterized in that: the bottom of described portable casing is provided with roller, described casing is split modular structure, by upper box body, middle part casing and lower part box combine, described upper box body arranges upper and lower two cavitys, the bottom of upper cavity is provided with cushion, the cover wall of upper cavity is provided with elastic press, described cushion is provided with testing tool, lower cavity is provided with drawer, described middle part casing is provided with drawer, battery pack is provided with in described lower part box, and, the tank wall of described lower part box is provided with exhaust fan, Testing apparatus is respectively arranged with in described drawer, connecting line and operation tool.
10. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 9, it is characterized in that: adjacent described upper box body, respectively locating groove and be connected kayser between middle part casing and lower part box, the both sides end face of described upper box body and middle part casing is respectively arranged with groove or handle; Described casing is made up of boxboard and buckle limit, and described buckle limit is arranged on the seamed edge of described casing; Described lower part box is provided with drawer, is provided with alternating current connecting line in described lower part box, realizes dual power supply; Described accumulator is lithium battery.
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| CN201510220517.6A CN104898030B (en) | 2015-05-04 | 2015-05-04 | Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform |
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| CN201510220517.6A CN104898030B (en) | 2015-05-04 | 2015-05-04 | Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform |
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| CN113064046A (en) * | 2021-04-09 | 2021-07-02 | 深圳群芯微电子有限责任公司 | Photoelectric coupler radiation effect testing equipment and testing method |
| CN113702880A (en) * | 2021-10-28 | 2021-11-26 | 珠海多创科技有限公司 | Magneto-resistance sensor chip |
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| CN104898030B (en) | 2018-06-12 |
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