CN114019328A - Special wiring device for GIS ultrahigh frequency partial discharge detection - Google Patents
Special wiring device for GIS ultrahigh frequency partial discharge detection Download PDFInfo
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- CN114019328A CN114019328A CN202111310888.5A CN202111310888A CN114019328A CN 114019328 A CN114019328 A CN 114019328A CN 202111310888 A CN202111310888 A CN 202111310888A CN 114019328 A CN114019328 A CN 114019328A
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- telescopic rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 239000000523 sample Substances 0.000 claims abstract description 44
- 239000004744 fabric Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 17
- 206010014357 Electric shock Diseases 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a GIS ultrahigh frequency partial discharge detection special wiring device which comprises a probe fixing plate and a telescopic rod, wherein the probe fixing plate is connected with the telescopic rod through a universal joint, a probe of a sensor is arranged on the probe fixing plate, and the telescopic rod is provided with the sensor connected with the probe. The special wiring device greatly simplifies the steps of GIS ultrahigh frequency partial discharge detection, reduces the labor intensity of testing personnel, reduces the occupation of personnel, improves the working quality and efficiency, and accelerates the working progress of detection on the premise of ensuring safety.
Description
Technical Field
The invention relates to the technical field of power detection equipment, in particular to a special wiring device for GIS ultrahigh frequency partial discharge detection.
Background
In operating electrical equipment, under the action of an electric field, discharge occurs only in a partial region, without penetrating between conductors to which a voltage is applied, i.e. without breaking down, a phenomenon known as partial discharge. The partial discharge is caused by gas discharge or breakdown in a local range of the insulating medium due to local electric field distortion and local field intensity concentration. Partial discharge can cause serious damage to the insulation of electrical equipment, mainly manifested by damage to the insulation material due to local heating caused by discharge, impact of charged particles, chemically active products, rays and the like. Partial discharge is a kind of pulse discharge, which generates a series of physical phenomena and chemical changes such as light, sound, electrical and mechanical vibration in the internal and surrounding space of the electric power equipment. These various physical and chemical changes accompanying the partial discharge can provide a detection signal for monitoring the internal insulation state of the power equipment.
The ultrahigh frequency partial discharge test is an effective means for detecting the insulation defect of equipment, and is agreed in the industry, and at present, when the ultrahigh frequency partial discharge test is carried out, several problems exist:
(I) detection time is too long
At present, when a tester carries out ultrahigh frequency partial discharge test on a 330kVGIS transformer substation, the time of 2 to 3 days is generally spent, and the working efficiency is low.
(II) low data accuracy
The tester holds the partial discharge instrument by hand to test, the tester holds the instrument host and the sensor by hand, the sensor is directly contacted, the hand of a person may shake, and the vibration signal may influence the test result.
(III) there is a safety risk
If there is the breakdown phenomenon in the test, the direct handheld sensor of tester can have the personal electric shock risk, when testing the equipment of eminence simultaneously, the test of ascending a height is along with certain eminence risk of falling.
Disclosure of Invention
The invention provides a special wiring device for GIS ultrahigh frequency partial discharge detection, which aims to solve the problems of overlong ultrahigh frequency partial discharge detection time, low data accuracy and safety risk in the prior art.
The technical scheme adopted by the invention is as follows:
the utility model provides a GIS superfrequency partial discharge detects special termination, includes probe fixed plate and telescopic link, the probe fixed plate passes through the universal joint and is connected with the telescopic link, be equipped with the probe of sensor on the probe fixed plate, be equipped with the sensor with probe connection on the telescopic link.
Preferably, the universal joint is connected to one side of probe fixed plate, and the opposite side is equipped with the magic subsides, the back of probe is equipped with the magic subsides, the probe passes through the magic to be pasted and can dismantle with the opposite side of probe fixed plate and be connected.
Preferably, the universal joint is a universal joint with a locking bolt.
Preferably, the telescopic link is a multi-section telescopic link, and in two adjacent sections, the other end of one section of the inner layer opposite to the extending end of the section of the inner layer is provided with a spring positioning pin, and the extending end of one section of the outer layer for the inner layer is provided with a positioning hole matched with the spring positioning pin.
Preferably, the telescopic rod is connected with a fixing bag through a binding band, and the sensor is arranged in the fixing bag.
Preferably, the fixing bag is made of an insulating cloth.
Preferably, one section of the two adjacent sections of the telescopic rod, which is positioned on the inner layer, extends out of the top end port of the section positioned on the outer layer, and the fixing bag is arranged on the section of the telescopic rod, which is positioned on the top.
The invention has the beneficial effects that: the device has the advantages of reasonable structure, small volume, light weight and convenient operation, a tester can skillfully operate the device for GIS ultrahigh frequency partial discharge detection only by simple training, the device is convenient to operate and portable to carry when detecting on site, only 2 testers are needed, single 330kVGIS interval detection can be completed within 7 minutes, and when a special wiring tool is not used, 3-4 testers usually spend about 13 minutes to complete the detection;
the GIS ultrahigh frequency partial discharge detection method has the advantages that GIS ultrahigh frequency partial discharge detection steps are greatly simplified, labor intensity of testing personnel is reduced, personnel occupation is reduced, working quality and efficiency are improved, and detection progress is accelerated on the premise of ensuring safety.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 at detail A;
reference numerals: 1. probe fixed plate, 2, universal joint, 3, telescopic link, 4, probe, 5, sensor, 6, magic subsides, 7, spring locating pin, 8, locating hole, 9, fixed bag.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, the wiring device special for GIS ultrahigh frequency partial discharge detection comprises a probe fixing plate 1 and a telescopic rod 3, wherein the probe fixing plate 1 is connected with the telescopic rod 3 through a universal joint 2, a probe 4 of a sensor 5 is arranged on the probe fixing plate 1, and the telescopic rod 3 is provided with the sensor 5 connected with the probe 4.
During the use, adjust probe 4 to required angle through universal joint 2, adjust telescopic link 3 to required length, single handheld telescopic link 3 can be close to the measurement station with probe 4 and detect, and another person observes waveform data, treats that data stabilization back preserves data, and it can to record.
Traditional detection mode generally needs three people's cooperations to go on at least, alone handheld probe 4 test of ascending a height, hold up insulating ladder alone, an operation instrument and record data, and when shifting between the measurement station, also need tester transport insulating ladder, not only the check-out time overlength, and both hands are held probe 4 and sensor 5 separately, direct contact sensor 5 can be because the shake produces vibration signal and influences the test result, above all if there is the breakdown phenomenon in the test, tester directly holds sensor 5 by hand, probably there is the personal electric shock risk, when testing the equipment of eminence simultaneously, the test of ascending a height is along with certain eminence risk of falling.
The special wiring device can greatly reduce the detection time, improve the detection efficiency, can finish the test work on the ground without ascending, avoids the risk of falling from a high place and the risk of personal electric shock caused by contacting with a device lead wire, does not need to carry an insulating ladder back and forth, reduces the working strength, enables a tester to hold the telescopic rod 3 by hand, enables the probe 4 to be propped against a measuring point, ensures that the probe 4 is tightly attached to the measuring point, is supported by the measuring point, enables the telescopic rod 3 to be held more stably, and avoids the influence on the test result caused by vibration signals generated by shaking of the sensor 5.
In one of them embodiment, universal joint 2 is connected to one side of probe fixed plate 1, and the opposite side is equipped with magic subsides 6, the back of probe 4 is equipped with magic subsides 6, probe 4 can be dismantled through magic subsides 6 and probe fixed plate 1's opposite side and be connected.
In one embodiment, the universal joint 2 is a universal joint 2 with a locking bolt.
This universal joint 2 can select to use the conventional universal ball of selling on the market, have the locking function can, if the universal ball structure on the cell phone stand commonly used at present can, still directly reequip with the universal ball on the cell phone stand, with the universal ball part on the cell phone stand pull down can, because the universal joint 2 of taking the locking bolt belongs to prior art, no longer gives details.
In one embodiment, as shown in fig. 2, the telescopic rod 3 is a multi-section telescopic rod 3, and in two adjacent sections, the other end of the section located in the inner layer and opposite to the extending end of the section located in the inner layer is provided with a spring positioning pin 7, and the end located in the outer layer and provided for the extending end of the section located in the inner layer is provided with a positioning hole 8 matched with the spring positioning pin 7.
When the telescopic rod 3 extends out, one section of the inner layer is pulled out from the adjacent outer layer, the spring positioning pin 7 is ejected out from the positioning hole 8 and exposed to complete the fixation of the telescopic rod 3, and when the telescopic rod 3 needs to be retracted, the spring positioning pin 7 is pressed down, so that the spring positioning pin is retracted from the positioning hole 8 and can retract one section of the inner layer.
In one embodiment, the telescopic rod 3 is connected with a fixing bag 9 through a binding band, and the sensor 5 is arranged in the fixing bag 9.
In one embodiment, the fixing bag 9 is made of an insulating cloth.
In one embodiment, one of the two adjacent sections of the telescopic rod 3, which is positioned at the inner layer, extends out from the top end port of the section positioned at the outer layer, and the fixing bag 9 is arranged on the uppermost section of the telescopic rod 3.
Fixed bag 9 is located one section of 3 tops of telescopic link, and when avoiding lengthening telescopic link 3, the connecting wire receives the dragging.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a GIS superfrequency partial discharge detects special termination, its characterized in that, includes probe fixed plate (1) and telescopic link (3), probe fixed plate (1) is connected with telescopic link (3) through universal joint (2), be equipped with probe (4) of sensor (5) on probe fixed plate (1), be equipped with sensor (5) of being connected with probe (4) on telescopic link (3).
2. The GIS ultrahigh frequency partial discharge detection special connection device according to claim 1, wherein one side of the probe fixing plate (1) is connected with the universal joint (2), the other side of the probe fixing plate is provided with a magic tape (6), the back of the probe (4) is provided with the magic tape (6), and the probe (4) is detachably connected with the other side of the probe fixing plate (1) through the magic tape (6).
3. The GIS UHF partial discharge detection specialized connection device according to claim 2, wherein the gimbal (2) is a gimbal (2) with a locking bolt.
4. The GIS ultrahigh frequency partial discharge detection special connection device according to claim 3, wherein the telescopic rod (3) is a multi-section telescopic rod (3), and one section of the adjacent two sections, which is positioned in the inner layer, is provided with a spring positioning pin (7) at the other end opposite to the extending end thereof, and one section of the outer layer, which is provided with the extending end, is provided with a positioning hole (8) matched with the spring positioning pin (7).
5. The GIS ultrahigh frequency partial discharge detection special connection device according to claim 4, wherein a fixing bag (9) is connected to the telescopic rod (3) through a binding band, and the sensor (5) is arranged in the fixing bag (9).
6. The GIS UHF partial discharge detection specific connection device according to claim 5, characterized in that said fixing bag (9) is made of insulating cloth.
7. The GIS ultrahigh frequency partial discharge detection special connection device according to claim 6, wherein one of the two adjacent sections of the telescopic rod (3) located at the inner layer extends out from the top end port of the one located at the outer layer, and the fixing bag (9) is arranged on the uppermost section of the telescopic rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310888.5A CN114019328A (en) | 2021-11-05 | 2021-11-05 | Special wiring device for GIS ultrahigh frequency partial discharge detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310888.5A CN114019328A (en) | 2021-11-05 | 2021-11-05 | Special wiring device for GIS ultrahigh frequency partial discharge detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114019328A true CN114019328A (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310888.5A Pending CN114019328A (en) | 2021-11-05 | 2021-11-05 | Special wiring device for GIS ultrahigh frequency partial discharge detection |
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| CN (1) | CN114019328A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030151412A1 (en) * | 2000-01-27 | 2003-08-14 | Brian Gregory | Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable |
| JP2015075482A (en) * | 2013-10-09 | 2015-04-20 | 有限会社 山本エンジニアリング | Partial discharge detection probe, portable partial discharge measurement device and measurement method |
| CN205941789U (en) * | 2016-07-01 | 2017-02-08 | 国网甘肃省电力公司电力科学研究院 | Scalable universal type superfrequency sensor fixed device |
| CN206057484U (en) * | 2016-07-20 | 2017-03-29 | 国网天津市电力公司 | Sucked type live detection equipment superfrequency sensor probe |
| CN207689626U (en) * | 2018-01-23 | 2018-08-03 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of power cable high-frequency pulse current shelf depreciation test insulation joint device |
| CN111443265A (en) * | 2020-05-06 | 2020-07-24 | 国网上海市电力公司 | Pre-buried ultrahigh frequency-ultrasonic partial discharge comprehensive sensor for GIS |
| CN211955716U (en) * | 2020-03-27 | 2020-11-17 | 陕西中兴祥林电子科技有限公司 | Detection device is put in superfrequency office suitable for GIS equipment |
| CN213843434U (en) * | 2020-11-02 | 2021-07-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | A high altitude termination for GIS ultrasonic wave partial discharge detection |
-
2021
- 2021-11-05 CN CN202111310888.5A patent/CN114019328A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030151412A1 (en) * | 2000-01-27 | 2003-08-14 | Brian Gregory | Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable |
| JP2015075482A (en) * | 2013-10-09 | 2015-04-20 | 有限会社 山本エンジニアリング | Partial discharge detection probe, portable partial discharge measurement device and measurement method |
| CN205941789U (en) * | 2016-07-01 | 2017-02-08 | 国网甘肃省电力公司电力科学研究院 | Scalable universal type superfrequency sensor fixed device |
| CN206057484U (en) * | 2016-07-20 | 2017-03-29 | 国网天津市电力公司 | Sucked type live detection equipment superfrequency sensor probe |
| CN207689626U (en) * | 2018-01-23 | 2018-08-03 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of power cable high-frequency pulse current shelf depreciation test insulation joint device |
| CN211955716U (en) * | 2020-03-27 | 2020-11-17 | 陕西中兴祥林电子科技有限公司 | Detection device is put in superfrequency office suitable for GIS equipment |
| CN111443265A (en) * | 2020-05-06 | 2020-07-24 | 国网上海市电力公司 | Pre-buried ultrahigh frequency-ultrasonic partial discharge comprehensive sensor for GIS |
| CN213843434U (en) * | 2020-11-02 | 2021-07-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | A high altitude termination for GIS ultrasonic wave partial discharge detection |
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