CN104977475A - Test clip for transformer dielectric loss angle and deformation test - Google Patents
Test clip for transformer dielectric loss angle and deformation test Download PDFInfo
- Publication number
- CN104977475A CN104977475A CN201510434456.3A CN201510434456A CN104977475A CN 104977475 A CN104977475 A CN 104977475A CN 201510434456 A CN201510434456 A CN 201510434456A CN 104977475 A CN104977475 A CN 104977475A
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- test
- support rod
- insulating support
- dielectric loss
- transformer
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Abstract
The present invention relates to a test clip for a transformer dielectric loss angle and deformation test. The test clip comprises an insulating support rod, a wiring ring, an expansion spring, a wire take-up device, and a wiring terminal. The top of the insulating support rod is connected to is connected to the wiring ring, and the insulating support rod is internally provided with the wire take-up device which is connected to the expansion spring. The expansion spring is connected to the bottom of the wiring ring. The wiring terminal is installed on a tap support frame and is connected to one end of a test lead. The other end of the test lead is connected to the wiring ring. The special test clip prepared by the invention has the advantages of convenient wire connection, good applicability, and small economic investment, especially in a dielectric loss test changeover process, the test can be completed on the ground without boarding a transformer sleeve tube, which is safe and efficient.
Description
Technical field
The invention belongs to transformer technology field, especially a kind of transformer dielectric loss angle and deformation test test clamp.
Background technology
Main-transformer also claims main transformer, plays an important role in electric system, therefore particularly important to the test of main-transformer.But, due to electric system being widely distributed in the whole nation, so also very heavy to the routine test mission of main-transformer.But, carry out of traditional test method to a main-transformer is utilized to test, time particularly to transformer dielectric loss angle and the test of deformatter object, professional testing crew is needed to spend a large amount of time to test it, such as completing the whole insulation of 66kV main transformer and conventional test project needs 3-4 name specialty testing crew to spend more than 3 hours, 220kV main transformer needs the time of more than 4 hours, in the task of being pressed for time heavy spring, overhaul the period, main transformer test has accounted for larger task proportion in autumn.This be due to traditional test method require testing crew by transformer institute once, the short circuit of secondary connection sleeve pipe extension is connected, and the appropriate ground connection of sleeve pipe of will not test, test clip is on measurement sleeve pipe, therefore, be unfavorable for the operation of field experiment personnel, have a strong impact on the work efficiency of testing crew.
In the middle of test actual carries out, there are following two distinct issues.
Problem one: 220kV bushing shell for transformer height about 2-2.5 rice, 66kV bushing shell for transformer also has the height of about 1 meter, and during test, testing crew will climb up sleeve pipe by clip on the wiring tap being positioned at cannula tip, and this adds no small trouble to test connection.
Problem two: when Dielectric Loss Test carries out, requires that testing crew must not stay on the transformer, and this requires that again testing crew constantly will be climbed up and climb down transformer when changing test connection.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of the transformer dielectric loss angle and the deformation test test clamp that overcome above-mentioned conventional test methods shortcoming are provided, solve experimentation cost in prior art high, inefficiency, there is the problem of security risk simultaneously.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of transformer dielectric loss angle and deformation test test clamp, comprise insulating support rod, connecting ring, spreader spring, spooler and connection terminal, the top of described insulating support rod is connected with connecting ring, the inside of insulating support rod is provided with spooler, spooler is connected with spreader spring, and spreader spring is connected with the bottom of connecting ring, and described connection terminal is arranged on tap support frame, one end of connection terminal joint test extension line, the other end of test extension line is connected on connecting ring.
The quantity of described insulating support rod is 4, and described insulating support rod inside is cavity structure.
Described spooler comprises head bearing and lower bearing, and the upper end of insulating support rod is located at by described head bearing, and head bearing is connected with spreader spring, and the lower end of insulating support rod is located at by described lower bearing, connected between head bearing and lower bearing by connecting line.
Described test extension line is through insulating support rod internal cavities.
The invention has the beneficial effects as follows:
By Special test clamp prepared by the present invention, there is wiring in use easy, applicability is good, and there is the less advantage of economic input, owing to being connected by annealed copper wire between support bar, make the distance of four insulating support rods adjustable, therefore can be applicable to 66kV transformer and the 220kV transformer of most area; And connecting ring loosen with tight can by spreader spring, and can access freely and collect test connection spooler and control, facilitate it to regain test connection.Particularly in Dielectric Loss Test thread-changing process, relate to a sub-high pressure, secondary ground connection and secondary high-pressure, a ground connection thread-changing time, testing crew can complete on ground, without the need to climbing up bushing shell for transformer, safe and efficient.
Accompanying drawing explanation
Fig. 1 is a kind of transformer dielectric loss angle of exemplary embodiment of the present and the structural representation of deformation test test clamp.
Mark in figure: 1-insulating support rod, 2-connecting ring, 3-connecting line, 4-head bearing, 5-lower bearing, 6-spreader spring, 7-tap support frame, 8-connection terminal, 9-tests extension line.
Embodiment
With reference to accompanying drawing, in conjunction with specific embodiments, the present invention is described in detail.
Embodiment
See Fig. 1, it comprises 4 insulating support rods 1, soft copper connecting ring 2, spreader spring 6, spooler and connection terminal 8, the top of insulating support rod 1 is connected with annealed copper wire connecting ring 2, the inside of insulating support rod 1 is provided with spooler 3, spooler 3 comprises head bearing 4 and lower bearing 5, connected by connecting line 3 between head bearing and lower bearing, the upper end of insulating support rod 1 is located at by head bearing 4, head bearing 4 is connected with spreader spring 6, and described spreader spring 6 is connected with the bottom of annealed copper wire connecting ring 2, and lower bearing 4 is located at the lower end of insulating support rod 1; Described connection terminal 8 is arranged on tap support frame 7, one end of connection terminal joint test extension line 9, and the other end of test extension line 9 is connected on connecting ring.Wherein, insulating support rod 1 is made up of pressure-resistant material.Test extension line can be drawn out on connection terminal through after insulating support rod internal cavities, also can directly be connected with connection terminal.
Using method: before Dielectric Test of Transformer carries out, testing crew is propped an insulating support rod 1 and is made annealed copper wire connecting ring 2 touch transformer high-voltage A phase smoothly to go out wiretapping, then regulate spreader spring 6 and connecting ring 2 further with spooler, make connecting ring 2 and go out wiretapping compact siro spinning technology; Position relationship between wiretapping and distance is gone out according to A phase and B, C, D three-phase, the distance of adjustment 4 insulating support rods 1, and make connecting ring 2 all touch out wiretapping, then spooler 3 is tightened up in unification, the spreader spring 6 at support bar 1 top and connecting ring 2 are tightened up and is firmly enclosed within A, B, C, D tetra-in phase connection tap, make primary connection by connecting ring and the conducting of test extension line, thus make primary connection draw lower corresponding connection terminal 8 position of rear importing tap support frame 7 from eminence by test extension line.Complete Dielectric Test of Transformer, unclamp spooler parallel off spreader spring 6 and annealed copper wire connecting ring 2 is relaxed, choose lower connecting ring 2 with insulating support rod 1, storage instrument completes test.
Claims (4)
1. a transformer dielectric loss angle and deformation test test clamp, it is characterized in that comprising insulating support rod, connecting ring, spreader spring, spooler and connection terminal, the top of described insulating support rod is connected with connecting ring, the inside of insulating support rod is provided with spooler, spooler is connected with spreader spring, spreader spring is connected with the bottom of connecting ring, described connection terminal is arranged on tap support frame, one end of connection terminal joint test extension line, the other end of test extension line is connected on connecting ring.
2. a kind of transformer dielectric loss angle according to claim 1 and deformation test test clamp, is characterized in that the quantity of described insulating support rod is 4, and described insulating support rod inside is cavity structure.
3. a kind of transformer dielectric loss angle according to claim 1 and deformation test test clamp, it is characterized in that described spooler comprises head bearing and lower bearing, the upper end of insulating support rod is located at by described head bearing, head bearing is connected with spreader spring, the lower end of insulating support rod is located at by described lower bearing, connected between head bearing and lower bearing by connecting line.
4. a kind of transformer dielectric loss angle according to claim 1 and deformation test test clamp, is characterized in that described test extension line is through insulating support rod internal cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434456.3A CN104977475A (en) | 2015-07-17 | 2015-07-17 | Test clip for transformer dielectric loss angle and deformation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434456.3A CN104977475A (en) | 2015-07-17 | 2015-07-17 | Test clip for transformer dielectric loss angle and deformation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104977475A true CN104977475A (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510434456.3A Pending CN104977475A (en) | 2015-07-17 | 2015-07-17 | Test clip for transformer dielectric loss angle and deformation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104977475A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201281722Y (en) * | 2008-09-26 | 2009-07-29 | 佳木斯电业局 | Test wire connection hook for DC resistance of large-sized transformer |
| CN201548642U (en) * | 2009-12-10 | 2010-08-11 | 贵州电力试验研究院 | Junction pole for high voltage test |
| CN201853829U (en) * | 2010-11-12 | 2011-06-01 | 东北电力科学研究院有限公司 | Transformer sleeve pipe end part jointing clamp |
| CN202094322U (en) * | 2011-05-13 | 2011-12-28 | 辽宁省电力有限公司沈阳供电公司 | Multipurpose lead wiring device of large-scale transformer test |
| DE102010031113A1 (en) * | 2010-07-08 | 2012-01-12 | Robert Bosch Gmbh | Measuring arrangement for battery test terminal for connection to battery, has base support having sealing area with surface inclined at preset inclination angle which corresponds to inclination angle of seat contour in molding tool |
| CN203672921U (en) * | 2014-01-26 | 2014-06-25 | 国家电网公司 | End screen wiring device especially for transformer bushing dielectric loss testing |
| CN104020318A (en) * | 2014-06-17 | 2014-09-03 | 国家电网公司 | Multifunctional wire hanging rod |
| CN104734068A (en) * | 2015-04-10 | 2015-06-24 | 国家电网公司 | Distributing line foreign matter insulation removal device |
-
2015
- 2015-07-17 CN CN201510434456.3A patent/CN104977475A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201281722Y (en) * | 2008-09-26 | 2009-07-29 | 佳木斯电业局 | Test wire connection hook for DC resistance of large-sized transformer |
| CN201548642U (en) * | 2009-12-10 | 2010-08-11 | 贵州电力试验研究院 | Junction pole for high voltage test |
| DE102010031113A1 (en) * | 2010-07-08 | 2012-01-12 | Robert Bosch Gmbh | Measuring arrangement for battery test terminal for connection to battery, has base support having sealing area with surface inclined at preset inclination angle which corresponds to inclination angle of seat contour in molding tool |
| CN201853829U (en) * | 2010-11-12 | 2011-06-01 | 东北电力科学研究院有限公司 | Transformer sleeve pipe end part jointing clamp |
| CN202094322U (en) * | 2011-05-13 | 2011-12-28 | 辽宁省电力有限公司沈阳供电公司 | Multipurpose lead wiring device of large-scale transformer test |
| CN203672921U (en) * | 2014-01-26 | 2014-06-25 | 国家电网公司 | End screen wiring device especially for transformer bushing dielectric loss testing |
| CN104020318A (en) * | 2014-06-17 | 2014-09-03 | 国家电网公司 | Multifunctional wire hanging rod |
| CN104734068A (en) * | 2015-04-10 | 2015-06-24 | 国家电网公司 | Distributing line foreign matter insulation removal device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |