CN103559983A - Low-noise SF6 gas insulated transformer and manufacturing method thereof - Google Patents
Low-noise SF6 gas insulated transformer and manufacturing method thereof Download PDFInfo
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- CN103559983A CN103559983A CN201310433105.1A CN201310433105A CN103559983A CN 103559983 A CN103559983 A CN 103559983A CN 201310433105 A CN201310433105 A CN 201310433105A CN 103559983 A CN103559983 A CN 103559983A
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Abstract
The invention relates to a low-noise SF6 gas insulated transformer and a manufacturing method thereof, and belongs to the technical field of transformers. The technical scheme includes that the low-noise SF6 gas insulated transformer comprises a transformer iron core (1), a transformer iron core upper-lower iron yoke (2), a transformer gas tank (3), an iron core pad (4) and a transformer oil tank (5), transformer iron core laminated pieces adopts stepper lapping, the transformer iron core upper-lower iron yoke is bound firmly by adopting a whole circle of PET (polyethylene terephthalate) binding band, a gas tank damping pad (7) is arranged between the transformer gas tank as well as the bottom (6) of the transformer gas tank and a transformer foundation, and a damping pad (8) is arranged between the transformer iron core as well as the iron core pad (4) and the bottom of the transformer oil tank. The low-noise SF6 gas insulated transformer and the manufacturing method thereof have the advantages that magnetic flux density is lowered, the low-noise SF6 gas insulated transformer is free of fire hazard, small in occupied area and low in noise, ideal noise control effect is realized, and requirements of 58dB low-noise SF6 gas insulated transformers are met.
Description
Technical field
The present invention relates to a kind of low noise SF
6gas-insulated transformer and manufacture method thereof, belong to transformer technology field.
Background technology
At present, raising and the environmental administration restriction to each noise like along with people's environmental consciousness, the demand of particularly transforming due to continuous expansion and the city network in city in recent years, some transformer stations need to be built in shopping centre and residential block sometimes, so transformer noise problem is very outstanding with regard to what become.The noise of transformer is contaminated environment not only, and harm humans is healthy, and the equipment that affects normally moves, and closely related with the floor space of transformer station.The noise of transformer is the same with other electric property and mechanical performance, is all the important parameter of transformer.Therefore, the height of transformer noise level, becomes the important indicator of weighing transformer production producer Design and manufacture level.Background technology reduces transformer noise and has the problems such as disaster hidden-trouble, floor space are large; At present, SF
6the transformer sound level of transformer professional standard ZBK41005-89 < < 6 ~ 220kV level transformer sound level > > defined that gas-insulated transformer adopts, difficulty meets customer requirements.How to strengthen transformer noise and control, according to user, the difference of noise required, obtain desirable noise control effect, become this area technical problem urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of low noise SF
6gas-insulated transformer and manufacture method thereof,, low noise little without disaster hidden-trouble, floor space, obtain desirable noise and control effect, solves the problems referred to above that background technology exists.
Technical scheme of the present invention is: a kind of low noise SF
6gas-insulated transformer, comprises transformer core, transformer core Double layer iron yoke, transformer gas tank, feet unshakable in one's determination and oil tank of transformer; Transformer iron core lamination adopts stepping overlap joint, and transformer core Double layer iron yoke adopts the colligation of whole circle PET binding strap firm and solid; Between transformer gas tank and transformer gas tank bottom and transformer ground, gas tank beam is set, the gas tank beam that is arranged on transformer outside adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom and transformer ground; Between transformer core and feet unshakable in one's determination and oil tank of transformer bottom, beam is set, the beam that is arranged on transformer inside adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material, between being arranged at the bottom of feet unshakable in one's determination and transformer tank, like this between transformer gas tank bottom and transformer ground, transformer core and feet unshakable in one's determination and oil tank of transformer all contact replacement rigidity by elasticity and contact, making noise pass through rubber blanket decays gradually, thereby reduce the amount that transformer core vibration is delivered to oil tank of transformer wall vibrations, effectively reduce transformer noise.
A kind of low noise SF
6the manufacture method of gas-insulated transformer, comprises following processing step: 1. transformer iron core lamination adopts 1.6T, 6 grades of stepping overlap joints of 45 degree mitre; 2. it is firm and solid that transformer core Double layer iron yoke adopts the colligation of whole circle PET binding strap; 3. between transformer gas tank and transformer gas tank bottom and transformer ground, gas tank beam is set, the gas tank beam that is arranged on transformer outside adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom and transformer ground; 4. between transformer core and feet unshakable in one's determination and oil tank of transformer bottom, beam is set, the beam that is arranged on transformer inside adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material, between being arranged at the bottom of feet unshakable in one's determination and transformer tank.
Like this between transformer gas tank bottom and transformer ground, transformer core and feet unshakable in one's determination and oil tank of transformer all contact replacement rigidity by elasticity and contact, making noise pass through rubber blanket decays gradually, thereby reduce the amount that transformer core vibration is delivered to oil tank of transformer wall vibrations, effectively reduce transformer noise.
Between transformer body of the present invention and oil tank of transformer and between oil tank of transformer and transformer ground, by elasticity, contact and replace rigidity to contact, make noise pass through rubber blanket and decay gradually; The size of transformer core Double layer iron yoke colligation dynamics and the uniformity of colligation directly affect vibration noise unshakable in one's determination, when colligation is inhomogeneous, silicon steel sheet will produce wave, increase internal stress and magnetostriction unshakable in one's determination, adopt the uniform colligation of whole circle PET binding strap firm and solid, increased clamping force unshakable in one's determination, reduced magnetostriction, and then effectively reduce transformer core noise; The iron core of stepping overlap joint is inserted folded region inseam and is reduced, and can reduce amplitude, reduces excitation capacity and the exciting current of transformer simultaneously, and acoustical power is significantly reduced, and effectively reduces idle operator lamp.
Good effect of the present invention: reduce magnetic flux density,, low noise little without disaster hidden-trouble, floor space, obtain desirable noise and control effect, met 58dB low noise SF
6gas-insulated transformer requirement.
Accompanying drawing explanation
Fig. 1 is that the outside gas tank beam of embodiment of the present invention transformer is arranged schematic diagram;
Fig. 2 is that the inner beam of embodiment of the present invention transformer is arranged schematic diagram;
Fig. 3 is embodiment of the present invention transformer core Double layer iron yoke colligation schematic diagram;
Fig. 4 is embodiment of the present invention transformer iron core lamination stepping bridging arrangement schematic diagram;
Fig. 5 is embodiment of the present invention transformer iron core lamination stepping overlap joint X-direction schematic diagram;
In figure: transformer core 1, transformer core Double layer iron yoke 2, transformer gas tank 3, feet unshakable in one's determination 4 oil tank of transformer 5, transformer gas tank bottom 6, gas tank beam 7, beam 8, transformer ground 9, PET binding strap 10, folder 11.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
A kind of low noise SF
6gas-insulated transformer, comprises transformer core 1, transformer core Double layer iron yoke 2, transformer gas tank 3, feet unshakable in one's determination 4 and oil tank of transformer 5; Transformer iron core lamination adopts stepping overlap joint, and transformer core Double layer iron yoke adopts the colligation of whole circle PET binding strap firm and solid; Between transformer gas tank and transformer gas tank bottom 6 and transformer ground, gas tank beam 7 is set, the gas tank beam that is arranged on transformer outside adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom and transformer ground 9; Between transformer core and feet unshakable in one's determination 4 and oil tank of transformer bottom, beam 8 is set, the beam that is arranged on transformer inside adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material, between being arranged at the bottom of feet unshakable in one's determination and transformer tank.Like this between transformer gas tank bottom and transformer ground, transformer core and feet unshakable in one's determination and oil tank of transformer all contact replacement rigidity by elasticity and contact, making noise pass through rubber blanket decays gradually, thereby reduce the amount that transformer core vibration is delivered to oil tank of transformer wall vibrations, effectively reduce transformer noise.
In Fig. 1, SF
6the outside gas tank beam 7 of gas-insulated transformer adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom 6 and transformer ground 9.
In Fig. 2, the inner beam 8 of transformer adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material are arranged in feet 4 unshakable in one's determination and oil tank of transformer at 5 the end.
Fig. 3 is transformer core Double layer iron yoke colligation schematic diagram, and the size of colligation dynamics and the uniformity of colligation directly affect vibration noise unshakable in one's determination.When colligation is inhomogeneous, silicon steel sheet will produce wave, increase internal stress unshakable in one's determination and magnetostriction.Adopt the uniform colligation of whole circle PET binding strap 10 firm and solid, increased clamping force unshakable in one's determination, reduce magnetostriction, and then effectively reduce transformer core noise.
Fig. 4, Fig. 5 are core lamination stepping bridging arrangement schematic diagram, and the iron core of stepping overlap joint is inserted folded region inseam and reduced, and can reduce amplitude, reduces excitation capacity and the exciting current of transformer simultaneously, and acoustical power is significantly reduced, and effectively reduces idle operator lamp.
Claims (2)
1. a low noise SF
6gas-insulated transformer, is characterized in that comprising transformer core (1), transformer core Double layer iron yoke (2), transformer gas tank (3), feet unshakable in one's determination (4) and oil tank of transformer (5); Transformer iron core lamination adopts stepping overlap joint, and transformer core Double layer iron yoke adopts the colligation of whole circle PET binding strap firm and solid; Between transformer gas tank and transformer gas tank bottom (6) and transformer ground, gas tank beam (7) is set, the gas tank beam that is arranged on transformer outside adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom and transformer ground (9); Between transformer core and feet unshakable in one's determination (4) and oil tank of transformer bottom, beam (8) is set, the beam that is arranged on transformer inside adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material, between being arranged at the bottom of feet unshakable in one's determination and transformer tank.
2. a low noise SF
6the manufacture method of gas-insulated transformer, is characterized in that comprising following processing step: 1. transformer iron core lamination adopts 1.6T, 6 grades of stepping overlap joints of 45 degree mitre; 2. it is firm and solid that transformer core Double layer iron yoke adopts whole circle PET binding strap (10) colligation; 3. between transformer gas tank and transformer gas tank bottom and transformer ground, gas tank beam is set, the gas tank beam that is arranged on transformer outside adopts the neoprene material of resistance to weather, is arranged between transformer gas tank bottom and transformer ground; 4. between transformer core and feet unshakable in one's determination and oil tank of transformer bottom, beam is set, the beam that is arranged on transformer inside adopts resistance to SF
6gas, insulation, low temperature resistant, resistant to elevated temperatures ethylene propylene diene rubber material, between being arranged at the bottom of feet unshakable in one's determination and transformer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433105.1A CN103559983A (en) | 2013-09-23 | 2013-09-23 | Low-noise SF6 gas insulated transformer and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433105.1A CN103559983A (en) | 2013-09-23 | 2013-09-23 | Low-noise SF6 gas insulated transformer and manufacturing method thereof |
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| CN103559983A true CN103559983A (en) | 2014-02-05 |
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| CN201310433105.1A Pending CN103559983A (en) | 2013-09-23 | 2013-09-23 | Low-noise SF6 gas insulated transformer and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734824A (en) * | 2020-07-01 | 2020-10-02 | 浙江百朗士橡塑科技有限公司 | Sealing element for sealing sulfur hexafluoride gas |
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|---|---|---|---|---|
| JPS5640213A (en) * | 1979-09-10 | 1981-04-16 | Toshiba Corp | Transformer |
| CN201383426Y (en) * | 2009-03-05 | 2010-01-13 | 上海德力西集团有限公司 | Transformer noise lowering structure |
| CN201927457U (en) * | 2010-12-10 | 2011-08-10 | 中国广东核电集团有限公司 | Main transformer of million kilowatt level nuclear power station |
| CN202258738U (en) * | 2011-10-10 | 2012-05-30 | 佛山市中研非晶科技股份有限公司 | Low-noise oil-immersed transformer with amorphous alloy iron core |
| CN202363228U (en) * | 2011-12-16 | 2012-08-01 | 天威保变(合肥)变压器有限公司 | 500kV-grade three-phase three-winding excitation-free pressure regulating high-impedance power transformer |
| CN202632998U (en) * | 2011-12-11 | 2012-12-26 | 保定天威集团有限公司 | Noise reducing structure of transformer |
| WO2013100548A1 (en) * | 2011-12-29 | 2013-07-04 | 주식회사 효성 | Apparatus for reducing vibration of transformer |
| CN203433957U (en) * | 2013-09-23 | 2014-02-12 | 保定保菱变压器有限公司 | Low-noise SF6 gas-insulated transformer |
-
2013
- 2013-09-23 CN CN201310433105.1A patent/CN103559983A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640213A (en) * | 1979-09-10 | 1981-04-16 | Toshiba Corp | Transformer |
| CN201383426Y (en) * | 2009-03-05 | 2010-01-13 | 上海德力西集团有限公司 | Transformer noise lowering structure |
| CN201927457U (en) * | 2010-12-10 | 2011-08-10 | 中国广东核电集团有限公司 | Main transformer of million kilowatt level nuclear power station |
| CN202258738U (en) * | 2011-10-10 | 2012-05-30 | 佛山市中研非晶科技股份有限公司 | Low-noise oil-immersed transformer with amorphous alloy iron core |
| CN202632998U (en) * | 2011-12-11 | 2012-12-26 | 保定天威集团有限公司 | Noise reducing structure of transformer |
| CN202363228U (en) * | 2011-12-16 | 2012-08-01 | 天威保变(合肥)变压器有限公司 | 500kV-grade three-phase three-winding excitation-free pressure regulating high-impedance power transformer |
| WO2013100548A1 (en) * | 2011-12-29 | 2013-07-04 | 주식회사 효성 | Apparatus for reducing vibration of transformer |
| CN203433957U (en) * | 2013-09-23 | 2014-02-12 | 保定保菱变压器有限公司 | Low-noise SF6 gas-insulated transformer |
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| 机械工业职业技能鉴定指导中心: "《铁心叠装工》", 30 May 2009, 机械工业出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734824A (en) * | 2020-07-01 | 2020-10-02 | 浙江百朗士橡塑科技有限公司 | Sealing element for sealing sulfur hexafluoride gas |
| CN111734824B (en) * | 2020-07-01 | 2021-06-25 | 浙江百朗士橡塑科技有限公司 | Sealing element for sealing sulfur hexafluoride gas |
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Application publication date: 20140205 |