CN201903555U - Auxiliary device for testing of transformer bushing tap - Google Patents
Auxiliary device for testing of transformer bushing tap Download PDFInfo
- Publication number
- CN201903555U CN201903555U CN2010206539840U CN201020653984U CN201903555U CN 201903555 U CN201903555 U CN 201903555U CN 2010206539840 U CN2010206539840 U CN 2010206539840U CN 201020653984 U CN201020653984 U CN 201020653984U CN 201903555 U CN201903555 U CN 201903555U
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- auxiliary device
- hole
- outside
- connecting rod
- conductive connecting
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Abstract
The utility model discloses an auxiliary device for testing of a transformer bushing tap, which comprises an outer sealing sleeve, an inner insulating sleeve, a conductive connecting rod, a fixing nut and an adjusting nut. The outer sealing sleeve adopts a sleeve with threads on the inner wall, the conductive connecting rod sleeved in the inner insulating sleeve penetrates through a through hole on the cover top of the outer sealing sleeve from inside to outside, the outer end of the inner insulating sleeve is fixed at the cover top through the fixing nut, and the end of the conductive connecting rod outside the cover top is provided with the adjusting nut. A spring sleeved outside the conductive connecting rod is additionally arranged in the inner insulating sleeve for adjustment of vertical extension of the conductive connecting rod. The inner side of the through hole is provided with threads, and the corresponding part of the outer wall of the inner insulating sleeve is provided with external threads matched with the threads of the through hole. By adopting the auxiliary device, the complete separation of a testing device and a bushing tap body can be realized with no effect on normal tests and data, the direction contact of the lead wire of the testing device and the bushing tap can be avoided, and the bushing tap can be effectively prevented from being damaged during tests. Moreover, the auxiliary device has a novel design, a simple structure and a low cost and is convenient and practical.
Description
Technical field
The utility model relates to a kind of bushing shell for transformer end screen experiment auxiliary device, belongs to transformer high-voltage electrical test field.
Background technology
When transformer normally moved, bottom shielding of bushing was connected with sleeve shell after big envelope compresses and is grounded.In the conventional test process of transformer, the measurement of bottom shielding of bushing insulation against ground resistance need reset the end screen with external force, and testing crew compresses it with general tools such as screwdrivers usually.Though operation is convenient like this, exists many hidden danger,, causes the bottom shielding of bushing damage, and then jeopardize the sleeve pipe security of operation if careless manipulation then destroys the structure of bottom shielding of bushing probably.
Summary of the invention
The purpose of this utility model is: overcome the above-mentioned defective of prior art, provide a kind of bottom shielding of bushing impaired bushing shell for transformer end in process of the test of can effectively avoiding to shield experiment auxiliary device.
The purpose of this utility model realizes by following scheme: it is made of outside envelope, interior insulation sleeve, conductive link, hold-down nut and setting nut.Outside envelope is that inwall is provided with threaded cover tubular, and the conductive link of insulation sleeve runs through the through hole of the caping of outside envelope from the inside to the outside in being with, and setting nut is equipped with the outer end of the fixing interior insulation sleeve of hold-down nut, the outer conductive link end of caping in the caping place.
The utility model increases the spring that is enclosed within outside the conductive link in interior insulation sleeve, be used to regulate the extending longitudinally degree of conductive link.
Be provided with screw thread in the through hole described in the utility model, the appropriate section of simultaneously interior insulation sleeve outer wall is provided with the external thread that is complementary with through hole whorl.
The caping through hole cross section of outside envelope described in the utility model is circle or regular hexagon.
The utility model is under the prerequisite that does not influence normal test and data, the realization testing equipment thoroughly separates with the bottom shielding of bushing body, avoid the test apparatus lead-in wire directly to contact with bottom shielding of bushing, thereby it is avoided bottom shielding of bushing impaired in process of the test effectively, and novel in design, simple in structure, convenient and practical, with low cost.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is Fig. 1 vertical view;
Fig. 3 is a bushing shell for transformer end screen structural representation.
Embodiment
Be elaborated below in conjunction with 1 pair of the utility model of accompanying drawing.
The utility model is made of outside envelope 1, interior insulation sleeve 2, conductive link 3, spring 4, hold-down nut 5 and setting nut 6.Outside envelope 1 is provided with the cover tubular of screw thread 7 for inwall, the conductive link 3 of insulation sleeve 2 runs through the through hole 8 of the caping of outside envelope 1 from the inside to the outside in being with, setting nut 6 is equipped with the outer end of hold-down nut 5 fixing interior insulation sleeves 2, outer conductive link 3 ends of caping in the caping place.Spring 4 is arranged in the interior insulation sleeve 2 and is enclosed within outside the conductive link 3, is used to regulate the extending longitudinally degree of conductive link 3.Be provided with screw thread in the through hole 8, the appropriate section of simultaneously interior insulation sleeve 2 outer walls is provided with the external thread that is complementary with through hole 8 screw threads.Caping through hole 8 cross sections of outside envelope 1 are circular.
During use the lead wire sheath among Fig. 39 is taken off, servicing unit shown in Figure 1 is outstanding to former lead wire sheath position and screw, make conductive link 3 contact fully with stem 10 among Fig. 3, then that the lead-in wire of transformer test instrument and lid is outer conductive link 3 is connected.
Claims (4)
1. a bushing shell for transformer end screen experiment auxiliary device is characterized in that: be made of outside envelope, interior insulation sleeve, conductive link, hold-down nut and setting nut; Outside envelope is that inwall is provided with threaded cover tubular, and the conductive link of insulation sleeve runs through the through hole of the caping of outside envelope from the inside to the outside in being with, and setting nut is equipped with the outer end of the fixing interior insulation sleeve of hold-down nut, the outer conductive link end of caping in the caping place.
2. bushing shell for transformer according to claim 1 end screen experiment auxiliary device is characterized in that: increase the spring that is enclosed within outside the conductive link in interior insulation sleeve, be used to regulate the extending longitudinally degree of conductive link.
3. bushing shell for transformer according to claim 1 and 2 end screen experiment auxiliary device, it is characterized in that: be provided with screw thread in the through hole, the appropriate section of simultaneously interior insulation sleeve outer wall is provided with the external thread that is complementary with through hole whorl.
4. bushing shell for transformer according to claim 1 and 2 end screen experiment auxiliary device, it is characterized in that: the caping through hole cross section of outside envelope is circle or regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206539840U CN201903555U (en) | 2010-12-13 | 2010-12-13 | Auxiliary device for testing of transformer bushing tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206539840U CN201903555U (en) | 2010-12-13 | 2010-12-13 | Auxiliary device for testing of transformer bushing tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201903555U true CN201903555U (en) | 2011-07-20 |
Family
ID=44274149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206539840U Expired - Fee Related CN201903555U (en) | 2010-12-13 | 2010-12-13 | Auxiliary device for testing of transformer bushing tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201903555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965128A (en) * | 2015-06-29 | 2015-10-07 | 国网天津市电力公司 | Multifunctional auxiliary test tool for bushing tap grounding device |
| CN105810390A (en) * | 2016-04-06 | 2016-07-27 | 西安思坦电气技术有限公司 | Sleeve pipe end screen leading-out device of dry type transformer |
| EP3544028A1 (en) * | 2018-03-22 | 2019-09-25 | ABB Schweiz AG | A bushing with a tap assembly |
-
2010
- 2010-12-13 CN CN2010206539840U patent/CN201903555U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965128A (en) * | 2015-06-29 | 2015-10-07 | 国网天津市电力公司 | Multifunctional auxiliary test tool for bushing tap grounding device |
| CN104965128B (en) * | 2015-06-29 | 2017-09-15 | 国网天津市电力公司 | Bottom shielding of bushing earthing or grounding means multi-functional auxiliary testing instrument |
| CN105810390A (en) * | 2016-04-06 | 2016-07-27 | 西安思坦电气技术有限公司 | Sleeve pipe end screen leading-out device of dry type transformer |
| EP3544028A1 (en) * | 2018-03-22 | 2019-09-25 | ABB Schweiz AG | A bushing with a tap assembly |
| WO2019180193A1 (en) * | 2018-03-22 | 2019-09-26 | Abb Schweiz Ag | A bushing with a tap assembly |
| US11270817B2 (en) | 2018-03-22 | 2022-03-08 | Hitachi Energy Switzerland Ag | Bushing with a tap assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20121213 |