CN104465048A - Low-noise dry-type transformer - Google Patents
Low-noise dry-type transformer Download PDFInfo
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- CN104465048A CN104465048A CN201410678408.4A CN201410678408A CN104465048A CN 104465048 A CN104465048 A CN 104465048A CN 201410678408 A CN201410678408 A CN 201410678408A CN 104465048 A CN104465048 A CN 104465048A
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- vibration absorber
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Abstract
The invention relates to the technical field of electrical equipment, in particular to a low-noise dry-type transformer. Three windings are installed in parallel at the upper ends of installing bases, an upper clamping part and a lower clamping part are arranged at the upper end and the lower end of each winding respectively, and cooling fans are installed inside the lower clamping parts. Low-voltage outgoing line copper bars and high-voltage terminals are installed on the upper clamping parts, high-voltage tapping points are arranged on the front sides of the windings, and the high-voltage terminals are connected with the windings through high-voltage connecting rods. Multiple sets of shock absorbers are fixedly installed at the lower ends of the installing bases through bolt assemblies, iron plates are fixedly installed at the lower ends of the shock absorbers, and rubber shock absorption cushion blocks are fixedly installed at the lower ends of the iron plates. The low-noise dry-type transformer is novel in design and simple in structure; because the shock absorbers are installed at the bottom of the transformer, shocks generated by the transformer in the operation process are counteracted, then noise is eliminated, the service life of the transformer is prolonged, and the failure rate is decreased.
Description
Technical field
The present invention relates to technical field of electric equipment, be specifically related to a kind of low noise dry-type transformer.
Background technology
In recent years, use high-power transformer more and more at house and public place, this just proposes certain requirement to the noise of high-power transformer and Transformer.The noise problem of transformer receives the concern of people more and more.How to reduce transformer noise and become transformer manufacturing industry urgent problem.
The noise heard that transformer sends is caused by the electromagnetic force in the magnetostriction distortion of iron core and winding, fuel tank and magnetic screen.In the past, think that Magnetic Field-Induced core lamination longitudinally vibrates the main component that produced noise is transformer noise always.The amplitude of this vibration is relevant with the magnetic property of the magnetic flux density in core lamination and material unshakable in one's determination, and little with load current relation.Specifically, transformer noise has three sound sources, and one is unshakable in one's determination, and two is windings, and three is coolers, i.e. the noise sum that causes of unloaded, load and cooling system.The reason producing noise unshakable in one's determination forms silicon steel sheet unshakable in one's determination under the effect of alternating magnetic field, and small change and magnetostriction can occur, and magnetostriction makes iron core do periodic vibration with the change of excitation frequency.The vibrative reason of winding is that electric current produces electromagnetic force in the windings, and stray field also can make structural member produce vibration.Square being directly proportional of electromagnetic force (and vibration amplitude) and electric current, and square being directly proportional of the acoustical power of launching and vibration amplitude.Therefore, the acoustical power of transmitting and load current have relation clearly.In addition, transformer is installed and is not steadily also easily produced noise.
At present, insider has made a lot of Improving Measurements in order to the noise problem solving transformer, and such as: increase puigging and reduce noise, settle noise generator, change core material etc., but these methods all can not stress release treatment completely.
Summary of the invention
The object of this invention is to provide a kind of low noise dry-type transformer, it is novel in design, and structure is simple, at transformer bottom mounting shock absorber, the vibrations that transformer is produced in running are offset, thus stress release treatment, and extend the useful life of transformer, reduce failure rate.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: it comprises low-pressure line-outgoing copper bar, upper clamping piece, winding, lower clamping piece, mounting seat, vibration absorber, iron plate, rubber shock-absorbing cushion block, HV Terminal, high pressure connects, high-voltage tap head, cooling blower, the upper end of mounting seat is provided with three windings side by side, the two ends up and down of winding are respectively arranged with upper clamping piece and lower clamping piece, in lower clamping piece, cooling blower is installed, upper clamping piece is provided with low-pressure line-outgoing copper bar and HV Terminal, high-voltage tap head is provided with on front side of winding, be connected by high pressure connecting rod between HV Terminal with winding, the lower end of mounting seat is installed with array vibration absorber by bolt assembly, the lower end of vibration absorber is installed with iron plate, iron plate lower end is installed with rubber shock-absorbing cushion block.
Described vibration absorber is one group of lower end being arranged on mounting seat between two, and vibration absorber is distributed in center line both sides, mounting seat lower end.
In groove in described mounting seat, bilateral symmetry is provided with liquid water level.
Transformer in the present invention when mounted, intuitively can find out whether transformer whole installs steadily easily by liquid water level.Transformer operationally, if it produces vibrations, then offset by the spring of vibration absorber inside, and the lower end of vibration absorber is also provided with iron plate and rubber shock-absorbing cushion block, better stress release treatment by the power shaken.In addition, vibration absorber is distributed in center line both sides, mounting seat lower end, stressed evenly.
The present invention is novel in design, and structure is simple, and at transformer bottom mounting shock absorber, the vibrations that transformer is produced in running are offset, thus stress release treatment, and extend the useful life of transformer, reduce failure rate.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention,
Fig. 2 is the mounting structure figure of mounting seat and vibration absorber in the present invention;
Reference numeral: low-pressure line-outgoing copper bar 1, upper clamping piece 2, winding 3, lower clamping piece 4, mounting seat 5, vibration absorber 6, iron plate 7, rubber shock-absorbing cushion block 8, HV Terminal 9, high pressure connecting rod 10, high-voltage tap head 11, cooling blower 12, liquid water level 13.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1-Fig. 2, this embodiment is by the following technical solutions: it comprises low-pressure line-outgoing copper bar 1, upper clamping piece 2, winding 3, lower clamping piece 4, mounting seat 5, vibration absorber 6, iron plate 7, rubber shock-absorbing cushion block 8, HV Terminal 9, high pressure connecting rod 10, high-voltage tap head 11, cooling blower 12, the upper end of mounting seat 5 is provided with three windings 3 side by side, the two ends up and down of winding 3 are respectively arranged with upper clamping piece 2 and lower clamping piece 4, cooling blower 12 is installed in lower clamping piece 4, upper clamping piece 2 is provided with low-pressure line-outgoing copper bar 1 and HV Terminal 9, high-voltage tap head 11 is provided with on front side of winding 3, be connected by high pressure connecting rod 10 between HV Terminal 9 with winding 3, the lower end of mounting seat 5 is installed with array vibration absorber 6 by bolt assembly, the lower end of vibration absorber 6 is installed with iron plate 7, iron plate 7 lower end is installed with rubber shock-absorbing cushion block 8.
Described vibration absorber 6 is one group of lower end being arranged on mounting seat 5 between two, and vibration absorber 6 is distributed in center line both sides, mounting seat 5 lower end.
In groove in described mounting seat 5, bilateral symmetry is provided with liquid water level 13.
Transformer in this embodiment when mounted, intuitively can find out whether transformer whole installs steadily easily by liquid water level 13.Transformer operationally, if it produces vibrations, then offset by the spring of vibration absorber 6 inside, and the lower end of vibration absorber 6 is also provided with iron plate 7 and rubber shock-absorbing cushion block 8, better stress release treatment by the power shaken.In addition, vibration absorber 6 is distributed in center line both sides, mounting seat 5 lower end, stressed evenly.
The above is only in order to illustrate technical scheme of the present invention and unrestricted, other amendment that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (3)
1. low noise dry-type transformer, it is characterized in that it comprises low-pressure line-outgoing copper bar, upper clamping piece, winding, lower clamping piece, mounting seat, vibration absorber, iron plate, rubber shock-absorbing cushion block, HV Terminal, high pressure connects, high-voltage tap head, cooling blower, the upper end of mounting seat is provided with three windings side by side, the two ends up and down of winding are respectively arranged with upper clamping piece and lower clamping piece, in lower clamping piece, cooling blower is installed, upper clamping piece is provided with low-pressure line-outgoing copper bar and HV Terminal, high-voltage tap head is provided with on front side of winding, be connected by high pressure connecting rod between HV Terminal with winding, the lower end of mounting seat is installed with array vibration absorber by bolt assembly, the lower end of vibration absorber is installed with iron plate, iron plate lower end is installed with rubber shock-absorbing cushion block.
2. low noise dry-type transformer according to claim 1, it is characterized in that described vibration absorber one group of lower end being arranged on mounting seat between two, and vibration absorber is distributed in center line both sides, mounting seat lower end.
3. low noise dry-type transformer according to claim 1, is characterized in that in the groove in described mounting seat, bilateral symmetry is provided with liquid water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678408.4A CN104465048A (en) | 2014-11-24 | 2014-11-24 | Low-noise dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678408.4A CN104465048A (en) | 2014-11-24 | 2014-11-24 | Low-noise dry-type transformer |
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| Publication Number | Publication Date |
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| CN104465048A true CN104465048A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410678408.4A Pending CN104465048A (en) | 2014-11-24 | 2014-11-24 | Low-noise dry-type transformer |
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| CN (1) | CN104465048A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070475A (en) * | 2015-08-07 | 2015-11-18 | 无锡市悦丰化工有限公司 | Transformer iron core structure for chemical plant |
| CN105336472A (en) * | 2015-11-30 | 2016-02-17 | 武汉格雷斯电气有限公司 | Energy-saving environment-friendly dry-type transformer |
| CN105609271A (en) * | 2016-03-04 | 2016-05-25 | 国网上海市电力公司 | Vibration and noise reduction device of transformer |
| CN106252029A (en) * | 2016-09-27 | 2016-12-21 | 国家电网公司 | A kind of vibration and noise reducing device for dry-type distribution transformer |
| CN106449028A (en) * | 2016-09-27 | 2017-02-22 | 国家电网公司 | Vibration and noise reduction device for dry-type distribution transformer |
| CN111710510A (en) * | 2020-07-13 | 2020-09-25 | 怀宁板桥电子有限公司 | Low-noise transformer |
| CN116798747A (en) * | 2023-06-27 | 2023-09-22 | 山东特变电力设备有限公司 | Intelligent dry-type transformer and production process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321812A (en) * | 1986-07-16 | 1988-01-29 | Takaoka Ind Ltd | Stationary induction electric apparatus |
| CN201478091U (en) * | 2009-08-13 | 2010-05-19 | 上海置信电气非晶有限公司 | Amorphous alloy 10 kV dry-type transformer for wind power generation |
| CN202258736U (en) * | 2011-10-10 | 2012-05-30 | 陈先伟 | Noise isolation device of transformer |
| CN102592790A (en) * | 2012-02-29 | 2012-07-18 | 张家港新特变科技有限公司 | Tin bath air-immersed transformer |
| CN202422967U (en) * | 2011-11-21 | 2012-09-05 | 杭州钱江电气集团股份有限公司 | Damping device for reducing noise of dry type transformer |
-
2014
- 2014-11-24 CN CN201410678408.4A patent/CN104465048A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321812A (en) * | 1986-07-16 | 1988-01-29 | Takaoka Ind Ltd | Stationary induction electric apparatus |
| CN201478091U (en) * | 2009-08-13 | 2010-05-19 | 上海置信电气非晶有限公司 | Amorphous alloy 10 kV dry-type transformer for wind power generation |
| CN202258736U (en) * | 2011-10-10 | 2012-05-30 | 陈先伟 | Noise isolation device of transformer |
| CN202422967U (en) * | 2011-11-21 | 2012-09-05 | 杭州钱江电气集团股份有限公司 | Damping device for reducing noise of dry type transformer |
| CN102592790A (en) * | 2012-02-29 | 2012-07-18 | 张家港新特变科技有限公司 | Tin bath air-immersed transformer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070475A (en) * | 2015-08-07 | 2015-11-18 | 无锡市悦丰化工有限公司 | Transformer iron core structure for chemical plant |
| CN105336472A (en) * | 2015-11-30 | 2016-02-17 | 武汉格雷斯电气有限公司 | Energy-saving environment-friendly dry-type transformer |
| CN105609271A (en) * | 2016-03-04 | 2016-05-25 | 国网上海市电力公司 | Vibration and noise reduction device of transformer |
| CN106252029A (en) * | 2016-09-27 | 2016-12-21 | 国家电网公司 | A kind of vibration and noise reducing device for dry-type distribution transformer |
| CN106449028A (en) * | 2016-09-27 | 2017-02-22 | 国家电网公司 | Vibration and noise reduction device for dry-type distribution transformer |
| CN111710510A (en) * | 2020-07-13 | 2020-09-25 | 怀宁板桥电子有限公司 | Low-noise transformer |
| CN116798747A (en) * | 2023-06-27 | 2023-09-22 | 山东特变电力设备有限公司 | Intelligent dry-type transformer and production process thereof |
| CN116798747B (en) * | 2023-06-27 | 2023-12-15 | 山东特变电力设备有限公司 | Intelligent dry-type transformer and production method thereof |
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Application publication date: 20150325 |