CN103616622A - Device and method for testing partial discharging characteristic - Google Patents
Device and method for testing partial discharging characteristic Download PDFInfo
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- CN103616622A CN103616622A CN201310611692.9A CN201310611692A CN103616622A CN 103616622 A CN103616622 A CN 103616622A CN 201310611692 A CN201310611692 A CN 201310611692A CN 103616622 A CN103616622 A CN 103616622A
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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, specifically relate to a kind of device and method of testing thereof for insulating oil and the test of paper oil insulation material Characteristics of Partial Discharge.
Background technology
Insulating oil stops or this specific character of inhibition shelf depreciation is very important in many application, between operation characteristic in different chemical constitution liquid, alter a great deal, the shelf depreciation situation of oil-paper combination insulation material is more complicated, the different relative positions of shelf depreciation point have a significant impact partial discharge performance, therefore need a kind of device of testing insulating oil and oilpaper compound substance partial discharge performance.
Following several device is disclosed in prior art:
Name is called < < lubricating cup > > for the research of insulating oil impact characteristics, application number is the utility model of " CN201220002515.1 ", as shown in Figure 2, lubricating cup for the research of insulating oil impact characteristics is disclosed, comprise thickness piece, nylon base and the organic glass cylinder and the plexiglass tent that are arranged on from inside to outside concentric on nylon base, in organic glass cylinder, be provided with electrode, plexiglass tent top is provided with concentric locating nut, in concentric locating nut, be movably equipped with high pressure solid metal guide rod, one end of high pressure solid metal guide rod is arranged in organic glass cylinder, this one end is connected with top electrode, nylon base is provided with ground connection solid metal guide rod, and ground connection solid metal guide rod one end is connected with bottom electrode, oil clearance spacing is easy to fine setting, is easy to clean and change electrode, can be used for multiple sparking electrode model investigation.
In the determination test program > > of GB GB/T17648-1998 < < iknsulating liquid partial discharge inception voltage, be useful on the structural drawing of the test chamber of insulating oil partial discharge inception voltage test, as shown in Figure 3.
Name is called the patent of invention that < < device for testing insulating property of high-voltage oiled paper > >, application number are " CN201010285751.4 ", as shown in Figure 4, hydraulic oil paper insulation characteristic research test unit is disclosed, the abort situation that can often occur for converter power transformer operation, simulation ball-plate, pin-plate, plate-plate, along face, suspended discharge electrode model; Can realize DC voltage, alternating voltage and alterating and direct current and depress the experiment of typical hydraulic oil/paper oil insulation, and then can access Characteristics of Partial Discharge and the breakdown characteristics of converter power transformer major insulation.
But there is the defect of following technology in disclosed these devices of prior art:
1, cannot test and between upper/lower electrode, place insulating material, and the Characteristics of Partial Discharge while not contacting upper/lower electrode;
Characteristics of Partial Discharge while there is optional position suspended metal electric discharge in 2, cannot test oil;
3, between the lubricating cup container plexiglass tent and base in Fig. 2 and Fig. 3, and and concentric locating nut between connection disassembling difficulty;
The insulating material difficulty of 4, placing on the lower replacing bottom electrode in Fig. 2 and Fig. 3, need to take plexiglass tent and base apart, and the existence of organic glass cylinder has significant limitation to the placement of insulating material;
5, in Fig. 4, take into account the every characteristic of paper oil insulation, very large by oil mass, cannot test the less sample of oil mass, change oil in addition larger, be not suitable for only needing to test the situation of Characteristics of Partial Discharge, be more not suitable for multiple transformer oil contrast test.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of device and method of testing for Characteristics of Partial Discharge test, simple in structure, be convenient to dismounting; Characteristics of Partial Discharge while there is optional position suspended metal electric discharge in not only can test oil, and can test optional position between upper/lower electrode and place insulating material, and the Characteristics of Partial Discharge while not contacting upper/lower electrode.
The object of the invention is to adopt following technical proposals to realize:
A kind of device for Characteristics of Partial Discharge test provided by the invention, described device comprises concentric locating nut, outer cover and base, described concentric locating nut and base are separately positioned on the upper and lower two ends of outer cover and form closed cavity, the center of described concentric locating nut and base is vertically provided with respectively central through hole, high pressure guide rod and ground connection guide rod are separately positioned in the central through hole of described concentric locating nut and base, are positioned at the high pressure guide rod of described closed cavity and the end of ground connection guide rod is respectively equipped with top electrode and bottom electrode;
Its improvements are: 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 in described through hole, and the end horizontal that is positioned at the connecting rod of described closed cavity is provided with filler ring.
Wherein, the quantity of described filler ring is more than or equal to 1, and between described top electrode and bottom electrode.
Wherein, on described filler ring, place insulating 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 that is positioned at described closed cavity outside is respectively equipped with setting nut and set nut, between described set nut and concentric locating nut, is provided with standard thickness piece or thick gauge.
Wherein, the described connecting rod that is positioned at described closed cavity outside is respectively equipped with setting nut and set nut, between described set nut and concentric locating nut, is provided with standard thickness piece or thick gauge.
Wherein, it is organic glass that described outer cover adopts material, and it is nylon that described base adopts material, and described outer cover is connected with base by thread.
Wherein, described concentric locating nut is T-shaped.
Wherein, described outer cover upper end is provided with the dismounting interface that outer wall caves inward.
Wherein, described top electrode with high pressure guide rod for being threaded, described bottom electrode with ground connection guide rod for being threaded.
Wherein, described ground connection guide rod through threaded is connected with base, and the described ground connection guide rod being positioned at outside described closed cavity is connected with ground wire.
The method of testing that the present invention is based on the device for Characteristics of Partial Discharge test that another object provides, its improvements are: described method comprises the steps:
1, by ground connection guide rod and base and ground wire use hold-down nut, metallic gasket and the assembling of wiring nut successively; High pressure guide rod and set nut, setting nut are assembled; Connecting rod and setting nut, set nut are assembled; And install respectively electrode and bottom electrode at high pressure guide rod and ground connection guide rod;
2, outer cover is installed on base, ground connection guide rod and bottom electrode are positioned at outer cover;
3, inject insulating oil to be measured, as test is paper oil insulation material, connecting rod is connected with filler ring through after concentric locating nut, on filler ring, place solid material or suspended metal, concentric locating nut is assembled on outer cover, regulate setting nut and set nut with location filler ring, inwall one sideway swivel to closed cavity by filler ring afterwards;
4, the central through hole that top electrode and high pressure guide rod is inserted to concentric locating nut is to outer cover, and adjusting lock nut and setting nut approach top electrode and bottom electrode, and with ohmmeter monitoring, until two electrode contacts pin setting nut with set nut;
5, set nut, setting nut and high pressure guide rod are mentioned, between setting nut and concentric locating nut, put into standard thickness piece or thick gauge, if test is paper oil insulation material, uses the same method and determine the distance of filler ring and bottom electrode;
6, the output of testing power supply is put on to the upper end of high pressure guide rod, test data is tested and is drawn in energising.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, this device can be used for testing between upper and lower electrode optional position and places insulating material, and the Characteristics of Partial Discharge while not contacting upper and lower electrode;
2, this device can be used for the Characteristics of Partial Discharge in suspended metal when electric discharge of optional position in test oil;
3, between outer cover and base and between outer cover and concentric locating nut, assembling is simple, is easy to dismounting;
While 4, changing insulating material, do not need to take outer cover and base apart, time saving and energy saving, improve testing efficiency;
5, test is few by oil mass, is convenient to change and clean.
Accompanying drawing explanation
Fig. 1 is: the structural representation of the device for Characteristics of Partial Discharge test provided by the invention;
Fig. 2 is: a kind of structural representation of the lubricating cup (CN201220002515.1) for the research of insulating oil impact characteristics;
Fig. 3 is: the structural representation of the test chamber for the test of insulating oil partial discharge inception voltage in the determination test program > > of GB GB/T17648-1998 < < iknsulating liquid partial discharge inception voltage;
Fig. 4 is: the structural representation of a kind of device for testing insulating property of high-voltage oiled paper (CN201010285751.4);
Wherein: 1, setting nut; 2, concentric locating nut; 3, dismounting interface; 4, outer cover; 5, top electrode; 6, base; 7, ground connection guide rod; 8, bottom electrode; 9, filler ring; 10, connecting rod; 11, setting nut; 12, set nut; 13, set nut; 14, high pressure guide rod.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present embodiment is example for the device of Characteristics of Partial Discharge test, as shown in Figure 1, the device for Characteristics of Partial Discharge test that the embodiment of the present invention provides comprises: setting nut 1, concentric locating nut 2, dismounting interface 3, outer cover 4, top electrode 5, base 6, ground connection guide rod 7, bottom electrode 8, filler ring 9, connecting rod 10, setting nut 11, set nut 12, set nut 13, high pressure guide rod 14.
Concentric locating nut 2, outer cover 4 and base 6 are threaded successively and form closed cavity, high pressure guide rod 14 and ground connection guide rod 7 are separately positioned in the central through hole of concentric locating nut 2 and base 6, are positioned at the high pressure guide rod 14 of closed cavity and the end of ground connection guide rod 7 is threaded connection respectively top electrode 5 and bottom electrode 8; The high pressure guide rod 14 that is positioned at closed cavity outside is provided with setting nut 1 and set nut 13, between set nut 13 and concentric locating nut 2, is provided with standard thickness piece or thick gauge.Connecting rod 10 is arranged in the through hole being parallel to each other with central through hole on concentric locating nut 2, and screw thread level connection joint filler ring 9 is passed through in the end that is positioned at the connecting rod 10 of closed cavity; The connecting rod 10 that is positioned at closed cavity outside is respectively equipped with setting nut 11 and set nut 12, between set nut 12 and concentric locating nut 2, is provided with standard thickness piece or thick gauge; On filler ring 9, place insulating paper material or suspended metal, and between top electrode 5 and bottom electrode 8.
Wherein, on outer cover 4, reserved dismounting interface 3, can connect aid, simultaneously in concentric locating nut 2 upper end arranged outside projections, prevents that vessel surface from skidding; The outer cover 4 adopting and the structure of concentric locating nut 2, expanded opening internal diameter, can realize and in the situation that not dismantling outer cover 4, change solid insulating material; Filler ring 9 location structures that adopt, accurate control and the fine setting of insulating material or the suspended metal vertical range between top electrode 5 and bottom electrode 8 have been guaranteed, filler ring 9 shapes can be made multiple standby as required, and can make supporting plate, and can adopt two filler rings 9 insulating material or suspended metal of being fixedly clamped of working in coordination if any special requirement; Ground connection guide rod 7 is consistent with the thread size on high pressure guide rod 14, makes top electrode 5 and bottom electrode 8 exchange general.
The present invention also provides the method for testing for the device of Characteristics of Partial Discharge test, and concrete steps are as follows:
1, ground connection guide rod 7 and base 6 and ground wire are assembled with hold-down nut, metallic gasket and wiring nut successively; High pressure guide rod 14 and set nut 13, setting nut 1 are assembled; By connecting rod 10 and setting nut 11, set nut 12 assemblings; And at high pressure guide rod 14 with ground connection guide rod 7 is installed respectively electrode 5 and bottom electrode 8 is standby.
2, outer cover 4 is installed on base 6, ground connection guide rod 7 and bottom electrode 8 are positioned at outer cover 4.
3, inject insulating oil to be measured, as test is paper oil insulation material, connecting rod 10 is connected with filler ring 9 through concentric locating nut 2 afterwards, on filler ring 9, place solid material or suspended metal, concentric locating nut 2 is assembled on outer cover 4, regulate setting nut 11, set nut 12 with location filler ring 9, inwall one sideway swivel to closed cavity by filler ring 9 afterwards.
4, top electrode 5 and high pressure guide rod 14 are inserted to concentric locating nut 2, to outer cover 4, rotation adjusting lock nut 13, setting nut 1 approach upper/lower electrode lightly, with ohmmeter monitoring, until two electrode contacts pin setting nut 1 with set nut 13.
5, set nut 13, setting nut 1 and high pressure guide rod 14 are mentioned, between setting nut 1 and concentric locating nut 2, insert required standard thickness piece or thick gauge, if test is paper oil insulation material, uses the same method afterwards and determine the distance of filler ring 9 and bottom electrode 8.
6, the output of testing power supply is put on to high pressure guide rod 14 upper ends, test data is tested and is drawn in energising.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (12)
1. the device for Characteristics of Partial Discharge test, described device comprises concentric locating nut, outer cover and base, described concentric locating nut and base are separately positioned on the upper and lower two ends of outer cover and form closed cavity, the center of described concentric locating nut and base is vertically provided with respectively central through hole, high pressure guide rod and ground connection guide rod are separately positioned in the central through hole of described concentric locating nut and base, are positioned at the high pressure guide rod of described closed cavity and the end of ground connection guide rod is respectively equipped with top electrode and bottom electrode;
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 in described through hole, and the end horizontal that is positioned at the connecting rod of described closed cavity is provided with filler ring.
2. the device for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: the quantity of described filler ring is more than or equal to 1, and between described top electrode and bottom electrode.
3. the device for Characteristics of Partial Discharge test as claimed in claim 2, is characterized in that: on described filler ring, place insulating paper material or suspended metal.
4. the device for Characteristics of Partial Discharge test as claimed in claim 3, is characterized in that: described filler ring is connected with described connecting rod by screw thread.
5. the device for Characteristics of Partial Discharge test as claimed in claim 1, it is characterized in that: the described high pressure guide rod that is positioned at described closed cavity outside is respectively equipped with setting nut and set nut, between described set nut and concentric locating nut, is provided with standard thickness piece or thick gauge.
6. the device for Characteristics of Partial Discharge test as claimed in claim 1, it is characterized in that: the described connecting rod that is positioned at described closed cavity outside is respectively equipped with setting nut and set nut, between described set nut and concentric locating nut, be provided with standard thickness piece or thick gauge.
7. the device for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: it is organic glass that described outer cover adopts material, and it is nylon that described base adopts material, and described outer cover is connected with base by thread.
8. the device for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: described concentric locating nut is T-shaped.
9. the device for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: described outer cover upper end is provided with the dismounting interface that outer wall caves inward.
10. the device for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: described top electrode with high pressure guide rod for being threaded, described bottom electrode with ground connection guide rod for being threaded.
11. devices for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: described ground connection guide rod through threaded is connected with base, the described ground connection guide rod being positioned at outside described closed cavity is connected with ground wire.
The method of testing of 12. 1 kinds of devices for Characteristics of Partial Discharge test as claimed in claim 1, is characterized in that: described method comprises the steps:
(1) by ground connection guide rod and base and ground wire use hold-down nut, metallic gasket and the assembling of wiring nut successively; High pressure guide rod and set nut, setting nut are assembled; Connecting rod and setting nut, set nut are assembled; And install respectively electrode and bottom electrode at high pressure guide rod and ground connection guide rod;
(2) outer cover is installed on base, ground connection guide rod and bottom electrode are positioned at outer cover;
(3) inject insulating oil to be measured, as test is paper oil insulation material, connecting rod is connected with filler ring through after concentric locating nut, on filler ring, place solid material or suspended metal, concentric locating nut is assembled on outer cover, regulate setting nut and set nut with location filler ring, inwall one sideway swivel to closed cavity by filler ring afterwards;
(4) central through hole that top electrode and high pressure guide rod is inserted to concentric locating nut is to outer cover, and adjusting lock nut and setting nut approach top electrode and bottom electrode, and with ohmmeter monitoring, until two electrode contacts pin setting nut with set nut;
(5) set nut, setting nut and high pressure guide rod are mentioned, between setting nut and concentric locating nut, put into standard thickness piece or thick gauge, if test is paper oil insulation material, uses the same method and determine the distance of filler ring and bottom electrode;
(6) output of testing power supply is put on to the upper end of high pressure guide rod, test data is tested and is drawn in energising.
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| CN201310611692.9A CN103616622B (en) | 2013-11-26 | 2013-11-26 | Device and method for testing partial discharging characteristic |
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| CN201310611692.9A CN103616622B (en) | 2013-11-26 | 2013-11-26 | Device and method for testing partial discharging characteristic |
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Cited By (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 |
| CN109814015A (en) * | 2019-03-26 | 2019-05-28 | 广东电网有限责任公司 | A kind of coaxial electrode structure |
| 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 |
| 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 |
| CN114355131A (en) * | 2022-03-21 | 2022-04-15 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN114355131A (en) * | 2022-03-21 | 2022-04-15 | 合肥航太电物理技术有限公司 | EWIS electric arc test device suitable for low atmospheric pressure environment |
| 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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