CN103616622B - Device and method for testing partial discharging characteristic - Google Patents
Device and method for testing partial discharging characteristic Download PDFInfo
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- CN103616622B CN103616622B CN201310611692.9A CN201310611692A CN103616622B CN 103616622 B CN103616622 B CN 103616622B CN 201310611692 A CN201310611692 A CN 201310611692A CN 103616622 B CN103616622 B CN 103616622B
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- partial discharge
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- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007599 discharging Methods 0.000 title abstract 5
- 239000000945 filler Substances 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 7
- 229920005479 Lucite® Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000010998 test method Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 235000019994 cava Nutrition 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 239000011810 insulating material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000004154 testing of material Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- 238000009413 insulation Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- 229920005372 Plexiglas® Polymers 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The invention provides a device and method for testing the partial discharging characteristic. The device for testing the partial discharging characteristic comprises a concentric positioning nut, an outer cover and a base, wherein the concentric positioning nut and the base are arranged at the upper end of the outer cover and the lower end of the outer cover respectively to form a sealed cavity, central through holes are vertically formed in the center of the concentric positioning nut and in the center of the base respectively, a high-voltage guide rod and a grounding guide rod are arranged in the central through hole of the concentric positioning nut and the central through hole of the base respectively, and a top electrode and a bottom electrode are arranged on the end portions, located in the sealed cavity, of the high-voltage guide rod and the grounding guide rod respectively. The device for testing the partial discharging characteristic is characterized in that a through hole parallel to the central through hole of the concentric positioning nut is formed in the concentric positioning nut, a connecting rod is arranged in the through hole, and a supporting ring is horizontally arranged on the end portion, located in the sealed cavity, of the connecting rod. Compared with the prior art, the device and method for testing the partial discharging characteristic have the advantages that the structure is simple, disassembly and assembly are easy to achieve, and the effect of insulating oil and paper oil insulating material testing is good.
Description
Technical field
The present invention relates to a kind of device for Characteristics of Partial Discharge test, in particular to one kind are used for insulating oil and oil
The device of isolit Characteristics of Partial Discharge test and its method of testing.
Background technology
Insulating oil stops or this characteristic of suppression shelf depreciation is critically important in numerous applications, in different chemistry
Change very big between operation characteristic in structured liquids, the shelf depreciation situation of oil-paper combination insulation material is then increasingly complex, office
The different relative positions of portion's point of discharge have a significant impact to partial discharge performance it is therefore desirable to a kind of test insulating oil and oilpaper are multiple
The device of condensation material partial discharge performance.
Following several device is disclosed in prior art：
Entitled《A kind of lubricating cup for the research of insulating oil impact characteristics》, Application No. " CN201220002515.1 "
Utility model, as shown in Fig. 2 disclose for insulating oil impact characteristics research lubricating cup, including thickness block, nylon base and
It is arranged on concentric lucite cylinder on nylon base and plexiglass tent from inside to outside, in lucite cylinder, be provided with electrode,
Plexiglass tent top is provided with concentric locating nut, is movably equipped with the solid metal guide rod of high pressure, high-pressure solid in concentric locating nut
One end of heart metal guide rod is arranged in lucite cylinder, and this one end is connected with Top electrode；Nylon base is provided with ground connection
Solid metal guide rod, ground connection solid metal guide rod is connected with bottom electrode；Oil clearance spacing be easy to fine setting it is easy to cleaning and
Change electrode, can be used for multiple sparking electrode scale-model investigations.
GB GB/T17648-1998《Iknsulating liquid partial discharge inception voltage determination test program》In have for insulating
The structure chart of the test chamber of oily partial discharge inception voltage test, as shown in Figure 3.
Entitled《A kind of device for testing insulating property of high-voltage oiled paper》, the invention of Application No. " CN201010285751.4 "
Patent, as shown in figure 4, disclosing high pressure paper oil insulation characteristic research assay device, can run often to go out for converter power transformer
Existing abort situation, simulates ball-plate, pin-plate, board-to-board, along face, suspended discharge electrode model；Achievable DC voltage, exchange
Voltage and alterating and direct current depress typical hydraulic oil/paper oil insulation experiment, and then can obtain the office of converter power transformer major insulation
Portion's flash-over characteristic and breakdown characteristics.
But, there is the defect of following technology in prior art these devices disclosed：
1st, placement insulant between upper/lower electrode cannot be tested, and do not contact Characteristics of Partial Discharge during upper/lower electrode；
The 2nd, Characteristics of Partial Discharge during the suspended metal electric discharge of optional position cannot occur in test oil；
3rd, between the lubricating cup container plexiglass tent in Fig. 2 and Fig. 3 and base, and the company and concentric locating nut between
Connect dismounting difficult；
4th, the insulant placed on the lower replacing bottom electrode in Fig. 2 and Fig. 3 is difficult, needs to take plexiglass tent and bottom apart
Seat, and the presence of lucite cylinder has significant limitation to the placement of insulant；
5th, take into account paper oil insulation items characteristic in Fig. 4, with oil mass very big it is impossible to the less sample of test oil mass, in addition
Change oil larger, be not suitable for the situation only needing to test Characteristics of Partial Discharge, be more not suitable for multiple transformer oil contrast tests.
Content of the invention
For the deficiencies in the prior art, the invention provides a kind of device for Characteristics of Partial Discharge test and test side
Method, structure is simple, easy to disassemble；Not only can be special with shelf depreciation when optional position suspended metal electric discharge occurs in test oil
Property, and optional position between upper/lower electrode can be tested and place insulant, and the shelf depreciation not contacted during upper/lower electrode is special
Property.
The purpose of the present invention is to be realized using following technical proposals：
The present invention provide a kind of device for Characteristics of Partial Discharge test, described device include concentric locating nut,
Outer housing and base, described concentric locating nut and base are separately positioned on outer housing upper and lower ends and form closed cavity, described same
The center of heart location nut and base is vertically provided with central through hole respectively, and high pressure guide rod and ground connection guide rod are separately positioned on described same
In the central through hole of heart location nut and base, the high pressure guide rod in described closed cavity is with the end being grounded guide rod respectively
It is provided with Top electrode and bottom electrode；
It thes improvement is that：Described concentric locating nut is provided with the through hole being parallel to each other with its central through hole, and connecting rod sets
Put in described through hole, the end horizontal of the connecting rod in described closed cavity is provided with filler ring.
Wherein, the quantity of described filler ring is more than or equal to 1, and is located between described Top electrode and bottom electrode.
Wherein, described filler ring is placed insulation paper material or suspended metal.
Wherein, described filler ring is connected with described connecting rod by screw thread.
Wherein, the described high pressure guide rod outside positioned at described closed cavity is respectively equipped with adjusting nut and locking nut, institute
State and between locking nut and concentric locating nut, be provided with standard thickness block or finger gauge.
Wherein, the described connecting rod outside positioned at described closed cavity is respectively equipped with adjusting nut and locking nut, described lock
It is provided with standard thickness block or finger gauge between jack panel and concentric locating nut.
Wherein, described outer housing adopts material is lucite, and it is nylon, described outer housing and base that described base adopts material
It is threaded connection.
Wherein, described concentric locating nut is T-shaped.
Wherein, described outer housing upper end is provided with the dismounting interface that outer wall caves inward.
Wherein, described Top electrode is to threaded with high pressure guide rod, and described bottom electrode is to threaded with ground connection guide rod.
Wherein, described ground connection guide rod through threaded is connected with base, the described ground connection guide rod outside described closed cavity
It is connected with ground wire.
The method of testing of the device for Characteristics of Partial Discharge test that the present invention is provided based on another object, it improves it
Place is：Methods described comprises the steps：
1st, guide rod and base will be grounded and earth lead will use fixing nut, metallic gasket and the assembling of wiring nut successively；By height
Pressure guide rod and locking nut, adjusting nut assembling；By connecting rod and adjusting nut, locking nut assembling；And in high pressure guide rod and
Ground connection guide rod is respectively mounted Top electrode and bottom electrode；
The 2nd, outer housing is installed on base, ground connection guide rod and bottom electrode are located in outer housing；
3rd, inject insulating oil to be measured, such as test is paper oil insulation material, by connecting rod pass through after concentric locating nut with
Filler ring is connected, and places solid material or suspended metal, concentric locating nut is assembled on outer housing on filler ring, adjusts spiral shell
Filler ring, to position filler ring, is rotated by mother and locking nut afterwards to the inwall side of closed cavity；
4th, Top electrode and high pressure guide rod are inserted the central through hole of concentric locating nut to outer housing, adjusting lock nut and
Adjusting nut makes Top electrode and bottom electrode close, and with ohmmeter monitoring, until two electrode contacts, is pinned with locking nut and adjust
Nut；
5th, locking nut, adjusting nut and high pressure guide rod are lifted, put between adjusting nut and concentric locating nut
Standard thickness block or finger gauge, if test is paper oil insulation material, determine the distance of filler ring and bottom electrode with same method；
6th, the output of test power supply is put on the upper end of high pressure guide rod, energising is tested and drawn test data.
Compared with the prior art, the beneficial effect that the present invention reaches is：
1st, this device can be used for testing placement insulant in optional position between upper and lower electrode, and does not contact upper and lower electrode
When Characteristics of Partial Discharge；
2nd, this device can be used for the Characteristics of Partial Discharge during suspended metal electric discharge of optional position in test oil；
3rd, between outer housing and base and outer housing and concentric locating nut between, assembling is simply it is easy to dismantle；
Do not need to take apart outer housing and base when the 4, changing insulant, time saving and energy saving, improve testing efficiency；
5th, test is few with oil mass, is conveniently replaceable and cleans.
Brief description
Fig. 1 is：Structural representation provided by the present invention for the device of Characteristics of Partial Discharge test；
Fig. 2 is：A kind of lubricating cup for the research of insulating oil impact characteristics（CN201220002515.1）Structural representation；
Fig. 3 is：GB GB/T17648-1998《Iknsulating liquid partial discharge inception voltage determination test program》In use
Structural representation in the test chamber of insulating oil partial discharge inception voltage test；
Fig. 4 is：A kind of device for testing insulating property of high-voltage oiled paper（CN201010285751.4）Structural representation；
Wherein：1st, adjusting nut；2nd, concentric locating nut；3rd, dismantle interface；4th, outer housing；5th, Top electrode；6th, base；7th, connect
Ground guide rod；8th, bottom electrode；9th, filler ring；10th, connecting rod；11st, adjusting nut；12nd, locking nut；13rd, locking nut；14th, high pressure is led
Bar.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
As a example the device that the present embodiment is tested for Characteristics of Partial Discharge, as shown in figure 1, provided in an embodiment of the present invention
Device for Characteristics of Partial Discharge test includes：Adjusting nut 1, concentric locating nut 2, dismounting interface 3, outer housing 4, Top electrode
5th, base 6, ground connection guide rod 7, bottom electrode 8, filler ring 9, connecting rod 10, adjusting nut 11, locking nut 12, locking nut 13, high pressure
Guide rod 14.
Concentric locating nut 2, outer housing 4 and base 6 are threaded successively and form closed cavity, high pressure guide rod 14 and ground connection
Guide rod 7 is separately positioned in concentric locating nut 2 and the central through hole of base 6, high pressure guide rod 14 He in closed cavity
The end of ground connection guide rod 7 is threaded connection Top electrode 5 and bottom electrode 8 respectively；High pressure guide rod 14 outside positioned at closed cavity
It is provided with adjusting nut 1 and locking nut 13, between locking nut 13 and concentric locating nut 2, be provided with standard thickness block or thickness
Rule.Connecting rod 10 is arranged on the connecting rod in the through hole be parallel to each other on concentric locating nut 2, in closed cavity with central through hole
Screw thread level connection joint filler ring 9 is passed through in 10 end；Connecting rod 10 outside positioned at closed cavity is respectively equipped with adjusting nut 11 and lock
Jack panel 12, is provided with standard thickness block or finger gauge between locking nut 12 and concentric locating nut 2；Insulation is placed on filler ring 9
Paper material or suspended metal, and be located between Top electrode 5 and bottom electrode 8.
Wherein, reserved dismounting interface 3 on outer housing 4, can connect aid, simultaneously outside concentric locating nut 2 upper end
Setting projection, prevents vessel surface from skidding；Using outer housing 4 and concentric locating nut 2 structure, expand opening inside diameter, can
Realize changing solid insulating material in the case of not dismantling outer housing 4；Using filler ring 9 location structure it is ensured that insulant
Or the precise control of vertical dimension between Top electrode 5 and bottom electrode 8 for the suspended metal and fine setting, filler ring 9 shape can be according to need
Make multiple standby, and supporting plate can be made, and can be worked in coordination the insulation that is fixedly clamped using two filler rings 9 if any special requirement
Material or suspended metal；Ground connection guide rod 7 is consistent with the thread size on high pressure guide rod 14, so that Top electrode 5 and bottom electrode 8 is exchanged and lead to
With.
Present invention also offers the method for testing of the device for Characteristics of Partial Discharge test, comprise the following steps that：
1st, guide rod 7 will be grounded and use fixing nut, metallic gasket and the assembling of wiring nut successively with base 6 and earth lead；Will
High pressure guide rod 14 and locking nut 13, adjusting nut 1 assemble；Connecting rod 10 is assembled with adjusting nut 11, locking nut 12；And
It is respectively mounted Top electrode 5 in high pressure guide rod 14 with ground connection guide rod 7 and bottom electrode 8 is standby.
The 2nd, outer housing 4 is installed on base 6, ground connection guide rod 7 and bottom electrode 8 are located in outer housing 4.
3rd, inject insulating oil to be measured, such as test is paper oil insulation material, after connecting rod 10 is passed through concentric locating nut 2
It is connected with filler ring 9, filler ring 9 places solid material or suspended metal, concentric locating nut 2 is assembled on outer housing 4, adjust
Filler ring 9, to position filler ring 9, is rotated by adjusting nut 11, locking nut 12 afterwards to the inwall side of closed cavity.
4th, Top electrode 5 and high pressure guide rod 14 are inserted concentric locating nut 2, to outer housing 4, rotate adjusting lock nut
13rd, adjusting nut 1 makes upper/lower electrode lightly close, with ohmmeter monitoring, until two electrode contacts, is pinned with locking nut 13
Adjusting nut 1.
5th, locking nut 13, adjusting nut 1 and high pressure guide rod 14 are lifted, adjusting nut 1 and concentric locating nut 2 it
Between insert needed for standard thickness block or finger gauge, if test be paper oil insulation material, determine filler ring 9 with same method afterwards
Distance with bottom electrode 8.
6th, the output of test power supply is put on high pressure guide rod 14 upper end, energising is tested and drawn test data.
Finally it should be noted that：Above example is only not intended to limit in order to technical scheme to be described, to the greatest extent
Pipe has been described in detail to the present invention with reference to above-described embodiment, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent, and any without departing from spirit and scope of the invention
Modification or equivalent, it all should be covered in the middle of scope of the presently claimed invention.
Claims (10)
1. a kind of device for Characteristics of Partial Discharge test, described device includes concentric locating nut, outer housing and base, described
Concentric locating nut and base are separately positioned on outer housing upper and lower ends and form closed cavity, described concentric locating nut and base
Center be vertically provided with central through hole respectively, high pressure guide rod and ground connection guide rod are separately positioned on described concentric locating nut and base
Central through hole in, the end of high pressure guide rod in described closed cavity and ground connection guide rod is respectively equipped with Top electrode and lower electricity
Pole；
It is characterized in that：Described concentric locating nut is provided with the through hole being parallel to each other with its central through hole, and connecting rod is arranged on and same
In the through hole that heart location nut central through hole is parallel to each other, the end horizontal of the connecting rod in described closed cavity is provided with support
Ring；
The quantity of described filler ring is more than or equal to 1, and is located between described Top electrode and bottom electrode；
Described concentric locating nut is T-shaped.
2. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Place absolutely on described filler ring
Edge paper material or suspended metal.
3. be used for as claimed in claim 2 the device of Characteristics of Partial Discharge test it is characterised in that：Described filler ring passes through screw thread
It is connected with described connecting rod.
4. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Positioned at described closed cavity
Outside described high pressure guide rod is respectively equipped with the first adjusting nut and the first locking nut, described first locking nut and with one heart calmly
It is provided with standard thickness block or finger gauge between the nut of position.
5. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Positioned at described closed cavity
Outside described connecting rod is respectively equipped with the second adjusting nut and the second locking nut, described second locking nut and concentric locating spiral shell
It is provided with standard thickness block or finger gauge between mother.
6. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Described outer housing adopts material
For lucite, it is nylon that described base adopts material, and described outer housing and base by thread connect.
7. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Described outer housing upper end is provided with
The dismounting interface that outer wall caves inward.
8. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Described Top electrode and high pressure
Guide rod is threaded, and described bottom electrode is to threaded with ground connection guide rod.
9. be used for as claimed in claim 1 the device of Characteristics of Partial Discharge test it is characterised in that：Described ground connection guide rod passes through
Screw thread is connected with base, and the described ground connection guide rod outside described closed cavity is connected with ground wire.
10. a kind of method of testing of the device being used for as claimed in claim 1 Characteristics of Partial Discharge test it is characterised in that：
Methods described comprises the steps：
(1) guide rod will be grounded and use fixing nut, metallic gasket and the assembling of wiring nut successively with base and earth lead；High pressure is led
Bar and the first locking nut, the first adjusting nut assembling；By connecting rod and the second adjusting nut, the second locking nut assembling；And
It is respectively mounted Top electrode and bottom electrode in high pressure guide rod and ground connection guide rod；
(2) outer housing is installed on base, ground connection guide rod and bottom electrode are located in outer housing；
(3) such as test is insulating oil, then inject insulating oil to be measured；As test is paper oil insulation material, then pass through connecting rod
It is connected with filler ring after concentric locating nut, solid material or suspended metal are placed on filler ring, concentric locating nut is assembled
To outer housing, adjust the second adjusting nut and the second locking nut to position filler ring, afterwards by inwall from filler ring to closed cavity
Side rotates；
(4) Top electrode and high pressure guide rod are inserted the central through hole of concentric locating nut to outer housing, adjust the first locking nut
Make Top electrode and bottom electrode close with the first adjusting nut, and with ohmmeter monitoring, until two electrode contacts, use the first locking screw
Female pinning the first adjusting nut；
(5) the first locking nut, the first adjusting nut and high pressure guide rod are lifted, in the first adjusting nut and concentric locating nut
Between put into standard thickness block or finger gauge, if test is paper oil insulation material, determine filler ring and lower electricity with same method
The distance of pole；
(6) output of test power supply is put on the upper end of high pressure guide rod, energising is tested and drawn test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310611692.9A CN103616622B (en) | 2013-11-26 | 2013-11-26 | Device and method for testing partial discharging characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310611692.9A CN103616622B (en) | 2013-11-26 | 2013-11-26 | Device and method for testing partial discharging characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616622A CN103616622A (en) | 2014-03-05 |
| CN103616622B true CN103616622B (en) | 2017-02-22 |
Family
ID=50167327
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310611692.9A Active CN103616622B (en) | 2013-11-26 | 2013-11-26 | Device and method for testing partial discharging characteristic |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931860A (en) * | 2014-03-19 | 2015-09-23 | 国家电网公司 | Device for testing insulating characteristic of oilpaper |
| WO2016095127A1 (en) * | 2014-12-17 | 2016-06-23 | 阿尔斯通技术有限公司 | Insulation dielectric response test system |
| CN106405353A (en) * | 2016-11-21 | 2017-02-15 | 国网河南省电力公司电力科学研究院 | Oil-paper composite insulation dielectric response test system |
| CN109917242A (en) * | 2019-03-19 | 2019-06-21 | 江苏神马电力股份有限公司 | A kind of material electric characteristic test tooling and its application method |
| CN109814015A (en) * | 2019-03-26 | 2019-05-28 | 广东电网有限责任公司 | A kind of coaxial electrode structure |
| CN112834882A (en) * | 2021-01-06 | 2021-05-25 | 国网浙江省电力有限公司电力科学研究院 | Adjusting device for converter transformer partial discharge model |
| CN114184917A (en) * | 2021-12-10 | 2022-03-15 | 国网安徽省电力有限公司超高压分公司 | Device and method for testing electrical characteristics of insulating paperboard |
| CN114355131B (en) * | 2022-03-21 | 2022-05-17 | 合肥航太电物理技术有限公司 | EWIS electric arc test device suitable for low atmospheric pressure environment |
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| CN203630285U (en) * | 2013-11-26 | 2014-06-04 | 国家电网公司 | Device used for partial discharge characteristic test |
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| CN101408579A (en) * | 2008-11-21 | 2009-04-15 | 重庆大学 | Oil paper insulated electrothermic aging test and local discharge integrated detection device of transformer |
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| CN103616622A (en) | 2014-03-05 |
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