CN202677685U - Transformer floating potential discharge test model - Google Patents
Transformer floating potential discharge test model Download PDFInfo
- Publication number
- CN202677685U CN202677685U CN 201220282497 CN201220282497U CN202677685U CN 202677685 U CN202677685 U CN 202677685U CN 201220282497 CN201220282497 CN 201220282497 CN 201220282497 U CN201220282497 U CN 201220282497U CN 202677685 U CN202677685 U CN 202677685U
- Authority
- CN
- China
- Prior art keywords
- transformer
- electrode
- floating potential
- discharge test
- test model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a transformer floating potential discharge test model. The transformer floating potential discharge test model is characterized in that the transformer floating potential discharge test model comprises a tubular container (5); two ends of the tubular container (5) are respectively provided with an upper electrode plate (1) and a lower electrode plate (7); a high-voltage electrode (2) is arranged inside the tubular container (5); one end of the high-voltage electrode (2) is fixedly connected with the upper pole plate (1), and the other end of the high-voltage electrode (2) is fixedly connected with an insulating supporting object; and a floating electrode (4) is detachably mounted on the insulating supporting object. According to the discharge test mode of the utility model, the spacing between the high-voltage electrode and the floating electrode is adjustable, test voltage is adjustable, discharge characteristics are obvious, and discharge intensity is controllable. The transformer floating potential discharge test model of the utility model can be used for detecting and investigating discharge caused by floating potential existing in a transformer, and can improve manufacturing process of the transformer, increase sensitivity in transformer partial discharge detection, and meet the needs of research on transformer floating positioning discharge characteristics.
Description
Technical field
The utility model relates to a kind of transformer floating potential discharge test model.
Background technology
Power transformer is the hinge type equipment of electric system power transmission and transformation, is the key equipment of transformation of electrical energy, has vital role in electrical network, and its reliability of operation is directly connected to the safety and stablization of electric system.A large amount of fault statistics the analysis showed that transformer insulated fault is the main cause of the normal operation of obstruction equipment.
Adopt of present large-scale power transformer has the paper insulation structure more, the electrical strength of its design is enough to satisfy the needs of normal operation, but what produce in manufacturing and transportation can produce shelf depreciation such as defectives such as bubble, burr and floating potentials, affects the safe operation of equipment.In many defect types, floating potential discharge is be prone to a kind of, particularly when occurring the situations such as loosened screw in the equipment, very easily cause the appearance of floating potential discharge, therefore it is studied, particularly its flash-over characteristic is studied, significant for the safe operation of power transformer.
" being used for the suspended discharge measurement mechanism that transformer fault detects " of " a kind of model of simulating discharge of transformer internal suspension " and the Chinese patent (application number is 201020676894.3) of Chinese patent (application number is 201020676891.X), a kind of transformer floating potential measurement mechanism is all disclosed, but two kinds of apparatus structures are comparatively complicated, and strength of discharge is difficult to control.
The utility model content
The purpose of this utility model provides a kind of convenient transformer floating potential discharge test model of regulating strength of discharge.
A kind of transformer floating potential discharge test model, its special feature is: comprise a tubular container, these tubular container two ends are separately installed with top crown and bottom crown, in this tubular container, be provided with a high-field electrode, one end of this high-field electrode is fixedly connected with top crown and its other end is fixedly connected with an insulation stent, and a suspension electrode detachably is installed on this insulation stent.
Wherein tubular container is the organic glass material.
Wherein seal between tubular container and the bottom crown.
Wherein high-field electrode and suspension electrode are copper point electrode, and the tip of these two electrodes is oppositely arranged.
Wherein insulation stent is dead ring.
Wherein top crown and bottom crown are aluminium sheet.
Wherein have screw thread in the suspension electrode outside, this suspension electrode is installed in the threaded hole on the insulation stent by threaded engagement, thereby makes the distance between suspension electrode and the high-field electrode adjustable.
In the discharging model of the present utility model, spacing is adjustable between high-field electrode and the suspension electrode, and trial voltage is adjustable, and discharge characteristic is clear and definite, and strength of discharge is controlled.Utilize the utility model can in the transformer owing to the discharge that exists floating potential to cause detects and studies, to improving the manufacturing process of transformer, improve the partial discharge of transformer detection sensitivity and have facilitation.Both solve prior art to floating potential discharge intensity adjustment hard problem, also satisfied the needs of transformer suspension orientation discharge characteristic research.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of transformer floating potential discharge test model, comprise a tubular container 5, the tubular container 5 concrete organic glass materials that adopt, these tubular container 5 two ends (being upper and lower end among Fig. 1) are separately installed with top crown 1 and bottom crown 7, be provided with a high-field electrode 2 in this tubular container 5, an end of this high-field electrode 2 is fixedly connected with top crown 1 and its other end is fixedly connected with an insulation stent, and a suspension electrode 4 detachably is installed on this insulation stent.
Need to add transformer oil 6 during use, so need sealing between tubular container 5 and the bottom crown 7.High-field electrode 2 and suspension electrode 4 are copper point electrode, and the tip of these two electrodes is oppositely arranged, and the insulation stent in the middle of both is polytetrafluoroethylmaterial material dead ring 3, and top crown 1 and bottom crown 7 are aluminium sheet.Have screw thread in suspension electrode 4 outsides in addition, this suspension electrode 4 is installed in the threaded hole on the insulation stent by threaded engagement, thereby makes the distance between suspension electrode 4 and the high-field electrode 2 adjustable.
Clearly, adopt discharging model of the present utility model can produce the clear and definite floating potential discharge of feature, and strength of discharge is controlled.
The utility model adopts the aluminum metal material as top crown 1 and bottom crown 7, and high-field electrode 2 adopts the brass metal materials, is point electrode, and bottom crown 7 is simultaneously also as ground electrode, ground connection during use.
In this model, suspension electrode 4 also adopts the brass metal material, is point electrode, and it is consistent with high-field electrode 2 structures.In order to form floating potential, adopt dead ring 3 fixedly suspension electrode 4 and high-field electrode 2, between suspension electrode 4 and high-field electrode 2, form minim gap, clearance distance is adjustable from 0.5mm～5mm.
Adopt the mode of threaded engagement to fix between suspension electrode 4 and the dead ring 3, therefore can regulate by rotatable suspension electrode 4 distance of itself and high-field electrode 2, reach the adjustable purpose of strength of discharge.
Distance is 10cm between suspension electrode 4 and the ground electrode, and enough large distance can avoid causing interference discharge between the two.After during use whole model being installed, be filled with transformer oil 6, high-field electrode 2, suspension electrode 4 are submerged in the oil fully.Bottom crown 7 ground connection during use, top crown 1 connects high-voltage power supply.
Claims (7)
1. transformer floating potential discharge test model, it is characterized in that: comprise a tubular container (5), this tubular container (5) two ends are separately installed with top crown (1) and bottom crown (7), in this tubular container (5), be provided with a high-field electrode (2), one end of this high-field electrode (2) is fixedly connected with top crown (1) and its other end is fixedly connected with an insulation stent, and a suspension electrode (4) detachably is installed on this insulation stent.
2. a kind of transformer floating potential discharge test model as claimed in claim 1 is characterized in that: wherein tubular container (5) is the organic glass material.
3. a kind of transformer floating potential discharge test model as claimed in claim 1 is characterized in that: wherein sealing between tubular container (5) and the bottom crown (7).
4. a kind of transformer floating potential discharge test model as claimed in claim 1, it is characterized in that: wherein high-field electrode (2) and suspension electrode (4) are copper point electrode, and the tip of these two electrodes is oppositely arranged.
5. a kind of transformer floating potential discharge test model as claimed in claim 1, it is characterized in that: wherein insulation stent is dead ring (3).
6. a kind of transformer floating potential discharge test model as claimed in claim 1, it is characterized in that: wherein top crown (1) and bottom crown (7) are aluminium sheet.
7. such as the described a kind of transformer floating potential discharge test model of any one in the claim 1 to 6, it is characterized in that: wherein have screw thread in suspension electrode (4) outside, this suspension electrode (4) is installed in the threaded hole on the insulation stent by threaded engagement, thereby makes the distance between suspension electrode (4) and the high-field electrode (2) adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282497 CN202677685U (en) | 2012-06-15 | 2012-06-15 | Transformer floating potential discharge test model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282497 CN202677685U (en) | 2012-06-15 | 2012-06-15 | Transformer floating potential discharge test model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677685U true CN202677685U (en) | 2013-01-16 |
Family
ID=47498572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282497 Expired - Fee Related CN202677685U (en) | 2012-06-15 | 2012-06-15 | Transformer floating potential discharge test model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954888A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Suspension discharge test model suspension discharge detection positioning device and method |
| CN111610414A (en) * | 2020-05-19 | 2020-09-01 | 保定天威新域科技发展有限公司 | Combined type discharging generation device for simulating multiple kinds of discharging in transformer |
-
2012
- 2012-06-15 CN CN 201220282497 patent/CN202677685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954888A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Suspension discharge test model suspension discharge detection positioning device and method |
| CN111610414A (en) * | 2020-05-19 | 2020-09-01 | 保定天威新域科技发展有限公司 | Combined type discharging generation device for simulating multiple kinds of discharging in transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202600103U (en) | Independent metal tip defect model for partial discharge test of gas insulated switchgear (GIS) | |
| CN204086472U (en) | A kind of insulation defect simulation test device for oil-filled transformer | |
| CN203572920U (en) | Parameter-adjustable suspended discharge test model | |
| CN104820171B (en) | A kind of paper oil insulation partial discharge test lubricating cup | |
| CN202677685U (en) | Transformer floating potential discharge test model | |
| CN207249040U (en) | A kind of transformer adjustable clearance discharging model | |
| CN202282231U (en) | Transformer bushing | |
| CN203630293U (en) | Discharge test model for transformer main insulating surface suspended potential | |
| CN203950013U (en) | A kind of adjustable high-potting needle plate defect model | |
| CN203839222U (en) | Static contact assembling for valve hall, and connecting metal fitting for connecting tubular busbar with static contact | |
| CN203350399U (en) | Synthesized voltage testing system used for high altitude region direct current and impact | |
| CN203178458U (en) | High repeatability standard bubble discharging model device | |
| CN207730883U (en) | A kind of transformer major insulation surface edge flashing discharge test device | |
| CN202362994U (en) | Suspension electrode type partial discharging model device for oil insulation transformer | |
| CN203595783U (en) | Parameter adjustable particle discharge test model | |
| CN203659999U (en) | Quick connecting mechanism for formation of power battery | |
| CN201868164U (en) | Voltage-equalizing ring with inner insulating structure | |
| CN203721471U (en) | Removable current transformer | |
| CN201765898U (en) | Novel dry type hollow shunt electric reactor | |
| CN201904598U (en) | Insulating cylinder | |
| CN107946026B (en) | External current transformer for transformer | |
| CN203415312U (en) | Novel mutual inductor hollow porcelain insulator | |
| CN203135372U (en) | A lightning protection device | |
| CN203850622U (en) | High-low-voltage cabinet of combined-type transformer for photovoltaic power generation | |
| CN102097775B (en) | Insulating cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20180615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |