CN104898030B - Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform - Google Patents

Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform Download PDF

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Publication number
CN104898030B
CN104898030B CN201510220517.6A CN201510220517A CN104898030B CN 104898030 B CN104898030 B CN 104898030B CN 201510220517 A CN201510220517 A CN 201510220517A CN 104898030 B CN104898030 B CN 104898030B
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babinet
shielding
extra
metal shell
video sensor
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CN104898030A (en
Inventor
李璐
许东升
王毅
牛田野
兰琦
鲁永
焦海龙
常黎
王校丹
张利
秦柯
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State Grid Corp of China SGCC
Maintenance Co of State Grid Henan Electric Power Co Ltd
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State Grid Corp of China SGCC
Maintenance Co of State Grid Henan Electric Power Co Ltd
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Abstract

The invention discloses a kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platforms, its technical solution is the setting shielding band in GIS device, it is provided with detection mouth on the shield tape, the detection mouth is corresponding with the metal tape opening in GIS device;Extra-high video sensor is set at detection mouth, which is in close contact with GIS device, is set with shielding bag on extra-high video sensor, and the shielding band outside the sack and detection mouth of shielding bag is in close contact connection, forms shielding cavity;Extra-high video sensor is connect by connecting line with the detecting instrument on mobile babinet, accumulator group is provided in the lower part of mobile babinet, detecting instrument handles the signal that extra-high video sensor is sent out, and testing result is shown or uploaded to host computer.In the enclosure space that the extra-high video sensor of the present invention is arranged on GIS device and screening arrangement is formed, effectively inhibit the interference of external electromagnetic waves, ensure that the high sensitivity of detection.

Description

Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform
Technical field:
The present invention relates to a kind of substation's partial discharge test equipment, more particularly to a kind of ultra-high voltage transformer station ultrahigh frequency partial discharge Anti-electromagnetic interference test method and mobile platform.
Background technology:
Field experience shows that insulation fault is the one of the major reasons for influencing 500kVGIS/HGIS reliability services, and insulate Failure is usually originating from deterioration and defect caused by internal shelf depreciation.The deterioration and breakdown of shelf depreciation and insulating materials are close The reason of correlation, it is both insulation degradation and the tendency and the form of expression of insulation degradation can reflect the built-in electrical insulation of equipment Situation, timely and effectively the latency insulation defect inside discovering device, the generation for avoiding sudden accident.
At present, net 500kV spy/super-pressure and converting plant 34 are saved, is mostly GIS/HGIS substations.Wherein, 9 For the GIS/HGIS equipment with metal basin, what will be put into operation is all the GIS/HGIS with metal basin.The maintenance master of GIS device at present Will be based on periodic inspection, the main problem actually encountered is as follows:
1)Due to the features such as spy/Ultra-high Voltage Substations voltage class is high, high-intensity magnetic field and interference are big, GIS ultrahigh frequency is locally put Phenomena such as electro-detection is highly prone to influence even carry out, and test leakage, erroneous judgement, mistake are surveyed occurs or even measure work often can not It carries out;
2)Since disc insulator employs metal tape weatherability guard technology in metal basin GIS device, cause inside GIS Local discharge signal is shielded, measures and can not carry out;Even if disc insulator outer metal tape trepanning, also due to bore size Small, most of signal is shielded, and is greatly affected measurement validity.
3)It during existing detecting instrument on-the-spot test, needs to draw at service chamber and connects alternating current 220V power supply, detect multiple GIS inspections During measuring point, working efficiency is low.
Invention content:
The technical problems to be solved by the invention are:Overcome the deficiencies of the prior art and provide a kind of reasonable design, test effect The ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and movement that fruit is good, movement is flexible and working efficiency is high are flat Platform.
The technical scheme is that:
A kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, includes the following steps:
A, the setting shielding band in GIS device, is provided with detection mouth, in the detection mouth and GIS device on the shield tape Metal tape opening is corresponding;
B, extra-high video sensor is set at detection mouth, which is in close contact with GIS device, in superfrequency It is set with shielding bag on sensor, the shielding band outside the sack and detection mouth of shielding bag is in close contact connection, forms shielding cavity;
C, extra-high video sensor is connect by connecting line with the detecting instrument on mobile babinet, under mobile babinet Portion is provided with accumulator group, which provides power supply, the letter that detecting instrument sends out extra-high video sensor for detecting instrument It number is handled, and testing result is shown or uploaded to host computer.
A kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform, including mobile babinet and extra-high Video sensor, the extra-high video sensor are arranged on the metal tape opening of GIS device, the extra-high video sensor and GIS device It is in close contact, setting shielding band in the GIS device, the shielding, which takes, is provided with detection mouth, which sets with the GIS Standby upper metal tape opening is corresponding;Shielding bag, the sack and detection mouth of the shielding bag are set on the extra-high video sensor The outer shielding band is in close contact connection, forms shielding cavity;The extra-high video sensor passes through connecting line and the movement Detecting instrument connection on formula babinet, the lower part of the movable type babinet are provided with accumulator group, which is the inspection It surveys instrument and power supply is provided.
The extra-high video sensor contains metal shell, enclosed type cavity of the metal shell for open at one end, the gold Belong in the inner cavity of shell and be provided with signal amplifier and microstrip antenna, connection plug is provided on the body wall of the metal shell, The open end shapes and sizes of the metal shell match respectively with the metal tape opening shape and size of GIS device, described Shielding case is provided on the outside of the open end of metal shell.
The shielding case is made of silver fiber, and the connection plug is aviation plug, N-type interface;The metal shell is Barrel shaped structure and open end are arcuate structure, and the outer end of the shielding case is provided with outside flange.
The bottom of the movable type babinet is provided with idler wheel, and the babinet is split modular structure, by upper box body, in Portion's babinet and lower part box are composed, and two cavitys above and below the upper box body setting, the bottom of upper cavity is provided with bullet Property pad is provided with elastic press on the cover wall of upper cavity, test equipment is provided on the cushion, lower cavity is set Drawer is equipped with, the middle part babinet is provided with drawer, and accumulator group, also, the lower tank are provided in the lower part box Exhaust fan is provided on the tank wall of body, test utensil, connecting line and operation instrument are respectively arranged in the drawer.
Between the adjacent upper box body, middle part babinet and lower part box distinguish locating groove and connection kayser, it is described on Groove or handle are respectively arranged on the both sides of the face of portion's babinet and middle part babinet;The babinet is by boxboard and buckle side structure Into the buckle side is arranged on the seamed edge of the babinet;Drawer is provided on the lower part box, in the lower part box Exchange electric connection line is provided with, realizes dual power supply;The accumulator is lithium battery.
The beneficial effects of the invention are as follows:
1st, inventive sensor metal shell and GIS disc insulators seam are tightly connected, and disc insulator is by shelf depreciation Superfrequency electromagenetic wave radiation is received to GIS by microstrip antenna in vitro, is spread out of after signal amplifier, and signal is strong, tests effect It is good, in addition, metal shell is arranged in the enclosure space formed between disc insulator and screening arrangement, effectively inhibit outer The interference of portion's electromagnetic wave ensure that the high sensitivity of detection.
2nd, the present invention makes shielding case using silver fiber, and shield effectiveness is good, and shielding high-frequency electromagnetic wave frequency range is 30MHZ-10GHZ greatly improves test effect.
3rd, mobile platform of the present invention use combined box structure, can respectively be set in different babinets test equipment, Power supply and connecting line, bottom of box setting idler wheel, are moved easily, partial discharge test, working efficiency can be carried out without external power supply High and good test effect.
4th, locating groove and connection kayser are provided between the adjacent boxes of mobile platform of the present invention, adjacent tank can be kept The fixed position of body prevents from mutually disengaging in moving process, and overall construction intensity is high, and can dismantle, easy to use.
5th, setting cushion and elastic press in the upper box body upper space of mobile platform of the present invention, can position and protect Detecting instrument is protected, safety is good.Also, babinet is made of boxboard and buckle side, and intensity is high, in addition, the drawer setting of babinet There are clamping lock and knob, it is easy to use.
The 6th, exhaust fan in the lower part box of mobile platform of the present invention is installed, increase heat dissipation effect, prevent power supply from damaging, carry The reliability of height work.
7th, reasonable design of the present invention, good test effect, mobile flexible and working efficiency are high, and using aviation plug, N-type Interface is versatile as connection plug, has stronger popularizing application prospect.
Description of the drawings:
Fig. 1 is the structure diagram of mobile platform of the present invention.
Fig. 2 is the structure diagram of the extra-high video sensor of the present invention.
Specific embodiment:
Embodiment:Referring to Fig. 1 and Fig. 2, in figure, 1- idler wheels, 2- exhaust fans, 3- boxboards, 4- buckles side, 5- connection cards Lock, 6- grooves, 7- case lids, 8- elastic press, 9- test equipments, 10- cushions, 11- drawers, 12- knobs.21- shielding cases, 22- metal shells, 23- microstrip antennas, 24- signal amplifiers, 25- connection plugs.
Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, includes the following steps:
A, the setting shielding band in GIS device, is provided with detection mouth, in the detection mouth and GIS device on the shield tape Metal tape opening is corresponding;
B, extra-high video sensor is set at detection mouth, which is in close contact with GIS device, in superfrequency It is set with shielding bag on sensor, the shielding band outside the sack and detection mouth of shielding bag is in close contact connection, forms shielding cavity;
C, extra-high video sensor is connect by connecting line with the detecting instrument on mobile babinet, under mobile babinet Portion is provided with accumulator group, which provides power supply, the letter that detecting instrument sends out extra-high video sensor for detecting instrument It number is handled, and testing result is shown or uploaded to host computer.
Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform including mobile babinet and extra-high is kept pouring in Sensor, wherein:Extra-high video sensor is arranged on the metal tape opening of GIS device, and the extra-high video sensor and GIS device are close It contacts, setting shielding band in GIS device, shielding, which takes, is provided with detection mouth, the detection mouth and the metal tape opening in GIS device It is corresponding;It is set with shielding bag on extra-high video sensor, the shielding band outside the sack and detection mouth of shielding bag is in close contact connection, shape Into shielding cavity;Extra-high video sensor is connect by connecting line with the detecting instrument on mobile babinet, under mobile babinet Portion is provided with accumulator group, which provides power supply for detecting instrument.
Extra-high video sensor contains metal shell 22, and metal shell 22 is the enclosed type cavity of open at one end, wherein:Metal Signal amplifier 24 and microstrip antenna 23 are provided in the inner cavity of shell 22, connection plug is provided on the body wall of metal shell 22 25, the open end shapes and sizes of metal shell 22 match respectively with metal disc insulator hole shape and size, metal Shielding case 21 is provided on the outside of the open end of shell 22.
Shielding case 21 is made of silver fiber, and connection plug 25 is aviation plug, N-type interface.Metal shell 22 is barrel-shaped knot Structure, open end are arcuate structure, and the outer end of shielding case 21 is provided with outside flange.
The bottom of mobile babinet is provided with idler wheel 1, wherein:Babinet is split modular structure, by upper box body, middle part Babinet and lower part box are composed, and two cavitys, the bottom of upper cavity are provided with cushion 10 up and down for upper box body setting, Elastic press 8 is provided on 7 inner wall of case lid of upper cavity, test equipment 9 is provided on cushion 10, lower cavity is provided with Drawer 11, middle part babinet are provided with drawer 11, and all drawers 11 are both provided with knob 12 and lockset, storage is provided in lower part box Battery pack(It is not drawn into figure), also, exhaust fan 2 is provided on the tank wall of lower part box, test is respectively arranged in drawer 11 Utensil, connecting line and operation instrument.
Between adjacent upper babinet, middle part babinet and lower part box distinguish locating groove and connection kayser 5, upper box body and Groove 6 or handle are respectively arranged on the both sides of the face of middle part babinet, convenient for lifting local babinet.
Babinet is made of boxboard 3 and buckle side 4, and buckle side 4 is arranged on the seamed edge of babinet;It is set on lower part box There is drawer 11, exchange electric connection line is provided in lower part box, realize dual power supply;Accumulator group is lithium battery.
In use, upper box body, middle part babinet and lower part box link together, operating personnel push babinet that can walk To detection site, case lid 7 is opened, test equipment 9 is connect by connecting line with extra-high video sensor, partial-discharge ultrahigh-frequency electromagnetism Amplitude is mapped to GIS and is received in vitro by microstrip antenna 23, is spread out of after signal amplifier 24, and signal is strong, good test effect, separately Outside, metal shell 22 is set in the enclosed space, is effectively inhibited the interference of external electromagnetic waves, be ensure that the high sensitivity of detection. The bottom of box sets idler wheel 1, is moved easily, and can carry out partial discharge test without external power supply, working efficiency is high and tests effect It is good.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, it is all It is any simple modification, equivalent change and modification that technical spirit according to the present invention makees above example, still falls within In the range of technical solution of the present invention.

Claims (6)

1. a kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method, includes the following steps:
A, the setting shielding band in GIS device, is provided with detection mouth on the shield tape, the detection mouth and the metal in GIS device Band is open corresponding;
B, extra-high video sensor is set at detection mouth, which is in close contact with GIS device, is sensed in superfrequency It is set with shielding bag on device, the shielding band outside the sack and detection mouth of shielding bag is in close contact connection, forms shielding cavity;Superfrequency Sensor contains metal shell, which is the enclosed type cavity of open at one end, is provided in the inner cavity of metal shell Signal amplifier and microstrip antenna, are provided with connection plug on the body wall of metal shell, the open end shape of metal shell and Size matches respectively with the metal tape opening shape and size of GIS device, and screen is provided on the outside of the open end of metal shell Cover cover;
C, extra-high video sensor is connect by connecting line with the detecting instrument on mobile babinet, is set in the lower part of mobile babinet Be equipped with accumulator group, which provides power supply for detecting instrument, detecting instrument by the signal that extra-high video sensor is sent out into Row processing, and testing result is shown or uploaded to host computer;The bottom of mobile babinet is provided with idler wheel, and babinet is divides Body fabricated structure is composed of upper box body, middle part babinet and lower part box, two cavitys above and below upper box body setting, The bottom of upper cavity is provided with cushion, and elastic press is provided on the cover wall of upper cavity, is provided on cushion Test equipment, lower cavity are provided with drawer, and middle part babinet is provided with drawer, and accumulator group is provided in lower part box, also, Exhaust fan is provided on the tank wall of lower part box, test utensil, connecting line and operation instrument are respectively arranged in drawer.
2. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 1, it is characterized in that:Screen It covers cover to be made of silver fiber, connection plug is aviation plug, N-type interface;Metal shell is barrel shaped structure, and open end is arc Structure, the outer end of shielding case are provided with outside flange.
3. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method according to claim 1, it is characterized in that:Phase Locating groove and connection kayser are distinguished between adjacent upper box body, middle part babinet and lower part box, upper box body and middle part babinet Groove or handle are respectively arranged on both sides of the face;Babinet is made of boxboard and buckle side, and buckle side is arranged on babinet On seamed edge;Drawer is provided on lower part box, exchange electric connection line is provided in lower part box, realizes dual power supply;Electric power storage Pond is lithium battery.
4. a kind of ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform, including mobile babinet and superfrequency Sensor, it is characterized in that:The extra-high video sensor is arranged on the metal tape opening of GIS device, the extra-high video sensor with GIS device is in close contact, and setting shielding band in the GIS device, the shielding, which takes, is provided with detection mouth, the detection mouth and institute The metal tape opening stated in GIS device is corresponding;Be set with shielding bag on the extra-high video sensor, the sack of the shielding bag with The shielding band outside detection mouth is in close contact connection, forms shielding cavity;The extra-high video sensor contains metal shell, should Metal shell is the enclosed type cavity of open at one end, and signal amplifier and micro-strip day are provided in the inner cavity of the metal shell Line, is provided with connection plug on the body wall of the metal shell, the open end shapes and sizes of the metal shell respectively with GIS The metal tape opening shape and size of equipment match, and shielding case is provided on the outside of the open end of the metal shell;The spy High frequency sensors are connect by connecting line with the detecting instrument on the mobile babinet, the lower part setting of the movable type babinet There is accumulator group, which provides power supply for the detecting instrument;The bottom of the movable type babinet is provided with idler wheel, institute Babinet is stated as split modular structure, is composed of upper box body, middle part babinet and lower part box, the upper box body setting Upper and lower two cavitys, the bottom of upper cavity are provided with cushion, elastic press, institute are provided on the cover wall of upper cavity It states and test equipment is provided on cushion, lower cavity is provided with drawer, and the middle part babinet is provided with drawer, the lower tank Accumulator group is provided with, also, exhaust fan is provided on the tank wall of the lower part box in vivo, is respectively arranged in the drawer Test utensil, connecting line and operation instrument.
5. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 4, feature It is:The shielding case is made of silver fiber, and the connection plug is aviation plug, N-type interface;The metal shell is barrel-shaped knot Structure and open end are arcuate structure, and the outer end of the shielding case is provided with outside flange.
6. ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test mobile platform according to claim 4, feature It is:Locating groove and connection kayser, the upper box body are distinguished between the adjacent upper box body, middle part babinet and lower part box Groove or handle are respectively arranged with on the both sides of the face of middle part babinet;The babinet is made of boxboard and buckle side, described Buckle side is arranged on the seamed edge of the babinet;Drawer is provided on the lower part box, is provided in the lower part box Electric connection line is exchanged, realizes dual power supply;The accumulator is lithium battery.
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CN110057408B (en) * 2019-05-27 2021-10-26 北京帕克国际工程咨询股份有限公司 Building main body quality detection device
CN113064046B (en) * 2021-04-09 2021-11-26 深圳群芯微电子有限责任公司 Photoelectric coupler radiation effect testing equipment and testing method
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CN103399179A (en) * 2013-08-15 2013-11-20 国家电网公司 Voltage-sharing shielding ring hyper-frequency signal lead-out device in basin-type insulator

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CN201289515Y (en) * 2008-11-14 2009-08-12 上海沪光变压器有限公司 Mobile local discharge test device
CN201464606U (en) * 2009-08-31 2010-05-12 保定天威集团有限公司 Partial discharge on-line monitor positioning device capable of convenient installation and relocation
CN202383241U (en) * 2011-12-23 2012-08-15 保定天威集团有限公司 Ultrahigh-frequency sensor for detecting GIS partial discharge
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