CN103632820B - On-load adjustable capacity transformer low-voltage outgoing line structure - Google Patents
On-load adjustable capacity transformer low-voltage outgoing line structure Download PDFInfo
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- CN103632820B CN103632820B CN201310678954.3A CN201310678954A CN103632820B CN 103632820 B CN103632820 B CN 103632820B CN 201310678954 A CN201310678954 A CN 201310678954A CN 103632820 B CN103632820 B CN 103632820B
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Abstract
The invention provides an on-load adjustable capacity transformer low-voltage outgoing line structure which comprises an iron core, three phases of low-voltage windings and an adjustable capacity switch, wherein each phase of low-voltage winding comprises a first winding, a second winding and a third winding which are wound on the iron core and are distributed in three layers from inside to outside; the end a 3 of the first winding is connected with the end x2 of the second winding; coil outlet ends of the three sections of windings are led out along the axial direction of the iron core; the coil outlet ends and leads of the coil outlet ends are arranged at the same side; the coil outlet ends are respectively connected with corresponding contacts of the adjustable capacity switch by the leads of the coil outlet ends; the leads of the coil outlet ends are arranged along the side of a coil; the arrangement directions of the leads of the coil outlet ends are vertical to the lead-out directions of the coil outlet ends. After the on-load adjustable capacity transformer low-voltage outgoing line structure is adopted, the length of a lead is reduced to the utmost extent, and the load loss is reduced; furthermore, the lead is clamped by a lead fixture, so that the mechanical strength of the product is improved.
Description
Technical field
The present invention relates to the technical field of transformer, refer in particular to a kind of loaded capacity-regulated transformer low voltage tapping structure.
Background technology
The size of rural power grids load changes with the change in season.During the busy farming season, network load is large, and during slack season, network load is little, and this can bring difficulty to the type selecting of rural power grids distribution transformer.Capacity selects large, and at slack seasons, there will be " low load with strong power " phenomenon, capacity selects little, when the busy farming season, because load is excessive thus cause transformer burnout failure; Spring Festival, many workers return to one's native place successively and celebrate the New Year or the Spring Festival and load is increased suddenly, if now the transformer of mountainous rural area burns out, not only greatly reduce festive air, and make troubles to the life of people.
Now commercially occur a kind of loaded capacity-regulated transformer, it has two kinds of capacity varied in size, and can adjust according to payload.Its fundamental design idea is: Three-Phase Transformer high pressure winding is triangle (D) when Large Copacity, is star (Y) during low capacity.
The change of high pressure winding connection, low pressure winding also, the conversion of series connection and the adjustment of each tap part complete by special loaded capacity-regulated shunting switch.Meanwhile, when Large Copacity is adjusted to low capacity, due to the increase of the low pressure number of turn, magnetic flux density unshakable in one's determination significantly reduces, and silicon steel sheet specific loss is diminished, and no-load loss and no-load current reduce, and reach the object of wastage reducing and energy saving.
Loaded capacity-regulated transformer not only high pressure winding plays tail head (A, B, C, X, Y, Z) and will guide on loaded capacity-regulated switch, and low pressure Winding tap (a1, b1, c1, x1, y1, z1, a2, b2, c2, x2, y2, z2) also to guide on loaded capacity-regulated switch.Because low-voltage lead quantity is many, and cross section is large, and the arrangement therefore gone between and low-pressure line-outgoing mode just seem extremely important, if Pin arrangement is improper or outlet method is inconsiderate, lead-in wire consumption all will be caused to increase or load loss increase.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of reasonable in design reliable, wire length can be reduced to greatest extent, load loss is low, mechanical strength is large loaded capacity-regulated transformer low voltage tapping structure.
For achieving the above object, technical scheme provided by the present invention is: a kind of loaded capacity-regulated transformer low voltage tapping structure, it includes iron core, three-phase low-voltage winding and capacitance switch, in described three-phase low-voltage winding, every mutually described low pressure winding includes the first coiling, second coiling and the 3rd coiling, these three sections of coilings are around on iron core, form three layers of distribution from inside to outside, the a3 end of the first coiling is held with the x2 of the second coiling and is connected, the winding protruding head of described three sections of coilings is along axial lead unshakable in one's determination, winding protruding head and winding protruding head go between as the same side is arranged, this winding protruding head is connected with capacitance switch respective contacts respectively by winding protruding head lead-in wire, described winding protruding head lead-in wire moves towards along coil side, its orientation is vertical with the lead direction of winding protruding head.
Described first coiling around to second and third coiling around to contrary.
The described winding protruding head one end be connected with capacitance switch contact that goes between is connected to Wiring nose, and winding protruding head lead-in wire is connected by this Wiring nose with capacitance switch contact.
Described winding protruding head lead-in wire is clamped by wire clamp, and wire clamp is fixed on folder.
Described three-phase low-voltage winding comprises a phase low pressure winding, b phase low pressure winding and c phase low pressure winding, wherein, the a3 end of the first coiling in a phase low pressure winding is held with the x2 of the second coiling and is connected, the b3 end of the first coiling in b phase low pressure winding is held with the y2 of the second coiling and is connected, and the c3 end of the first coiling in c phase low pressure winding is held with the z2 of the second coiling and is connected.
The present invention is after have employed such scheme, and its great advantage is to reduce wire length to greatest extent, reduces load loss, by wire clamp, lead-in wire is clamped simultaneously, thus increases the mechanical strength of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is mesolow winding protruding head schematic diagram of the present invention.
Low-voltage coil elementary diagram when Fig. 3 is Large Copacity in prior art.
Low-voltage coil elementary diagram when Fig. 4 is prior art Small And Medium Capacity.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Shown in accompanying drawing 1 to accompanying drawing 4, loaded capacity-regulated transformer low voltage tapping structure described in the present embodiment, it includes unshakable in one's determination 1, three-phase low-voltage winding 2 and capacitance switch 3, a in described three-phase low-voltage winding 2, b, c phase low pressure winding includes the first coiling 2-1, second coiling 2-2 and the 3rd coiling 2-3, these three sections of coilings are around on iron core 1, first coiling 2-1 around to second, three coiling 2-2, 2-3 around on the contrary, form three layers of distribution from inside to outside, in a phase low pressure winding, the a3 end of the first coiling 2-1 is held with the x2 of the second coiling 2-2 and is connected, in b phase low pressure winding, the b3 end of the first coiling 2-1 is held with the y2 of the second coiling 2-2 and is connected, in c phase low pressure winding, the c3 end of the first coiling 2-1 is held with the z2 of the second coiling 2-2 and is connected, the winding protruding head 7 of described three sections of coilings is along 1 axial lead unshakable in one's determination, winding protruding head 7 and winding protruding head go between 4 for arranging the same side, this winding protruding head 7 is connected with capacitance switch 3 respective contacts respectively by winding protruding head lead-in wire 4, one end that winding protruding head lead-in wire 4 is connected with capacitance switch 3 contact is connected to Wiring nose, winding protruding head lead-in wire 4 is connected by this Wiring nose with capacitance switch 3 contact, capacitance switch 3 carries out the conversion of large low capacity according to payload, described winding protruding head lead-in wire 4 moves towards along coil side, its orientation is vertical with the lead direction of winding protruding head 7, and winding protruding head lead-in wire 4 is clamped by wire clamp 5, and wire clamp 5 is fixed on folder 6.The present invention can reduce wire length to greatest extent, reduces load loss, by wire clamp, lead-in wire is clamped simultaneously, thus increases the mechanical strength of product.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (4)
1. a loaded capacity-regulated transformer low voltage tapping structure, it includes iron core (1), three-phase low-voltage winding (2) and capacitance switch (3), it is characterized in that: in three-phase low-voltage winding (2), every mutually described low pressure winding includes the first coiling (2-1), second coiling (2-2) and the 3rd coiling (2-3), these three sections of coilings are around on (1) unshakable in one's determination, form three layers of distribution from inside to outside, the winding protruding head (7) of described three sections of coilings is along (1) axial lead unshakable in one's determination, winding protruding head (7) and winding protruding head go between (4) for arranging the same side, this winding protruding head (7) is connected with capacitance switch (3) respective contacts respectively by winding protruding head lead-in wire (4), described winding protruding head lead-in wire (4) is moved towards along coil side, its orientation is vertical with the lead direction of winding protruding head (7), described three-phase low-voltage winding (2) comprises a phase low pressure winding, b phase low pressure winding and c phase low pressure winding, wherein, the a3 end of the first coiling (2-1) in a phase low pressure winding is held with the x2 of the second coiling (2-2) and is connected, the b3 end of the first coiling (2-1) in b phase low pressure winding is held with the y2 of the second coiling (2-2) and is connected, and the c3 end of the first coiling (2-1) in c phase low pressure winding is held with the z2 of the second coiling (2-2) and is connected.
2. a kind of loaded capacity-regulated transformer low voltage tapping structure according to claim 1, is characterized in that: described first coiling (2-1) around to second and third coiling (2-2,2-3) around to contrary.
3. a kind of loaded capacity-regulated transformer low voltage tapping structure according to claim 1, it is characterized in that: one end that described winding protruding head lead-in wire (4) is connected with capacitance switch (3) contact is connected to Wiring nose, and winding protruding head lead-in wire (4) is connected by this Wiring nose with capacitance switch (3) contact.
4. a kind of loaded capacity-regulated transformer low voltage tapping structure according to claim 1, is characterized in that: described winding protruding head lead-in wire (4) is by wire clamp (5) clamping, and wire clamp (5) is fixed on folder (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310678954.3A CN103632820B (en) | 2013-12-14 | 2013-12-14 | On-load adjustable capacity transformer low-voltage outgoing line structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310678954.3A CN103632820B (en) | 2013-12-14 | 2013-12-14 | On-load adjustable capacity transformer low-voltage outgoing line structure |
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| CN103632820A CN103632820A (en) | 2014-03-12 |
| CN103632820B true CN103632820B (en) | 2015-04-01 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104766711B (en) * | 2014-11-17 | 2017-08-04 | 平高集团有限公司 | A kind of loaded capacity regulating voltage regulating transformer and its coil module |
| CN104990639B (en) * | 2015-07-01 | 2019-01-01 | 广东电网有限责任公司电力科学研究院 | A kind of optical fiber temperature-measurement structure on 10KV distribution transformer |
| CN105976997A (en) * | 2016-06-24 | 2016-09-28 | 卧龙电气集团股份有限公司 | On-load capacity regulating transformer with staggered leading-out low voltage windings |
| CN106098327A (en) * | 2016-08-18 | 2016-11-09 | 吴江变压器有限公司 | A kind of pin configuration that can adjust loaded capacity-regulated transformer D.C. resistance |
| CN109378189B (en) * | 2018-12-03 | 2024-02-27 | 山东电工电气集团智能电气有限公司 | Transformer low-voltage winding and on-load capacity-regulating transformer |
| CN109616294A (en) * | 2019-01-11 | 2019-04-12 | 浙江宝威电气有限公司 | A kind of capacitance-adjustable transformer of three-phase linear arranged type Dy (Yy) connection |
| CN112992499A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Three-phase integrated autotransformer low-voltage copper pipe lead structure and method |
| CN115985656B (en) * | 2023-03-20 | 2023-08-29 | 保定天威保变电气股份有限公司 | Wiring structure of voltage and phase regulating transformer of power distribution network |
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| CH148529A (en) * | 1929-03-06 | 1931-07-31 | Elettromecc Scarpa & Magnano S | Transducer. |
| CN100550224C (en) * | 2007-05-14 | 2009-10-14 | 邵长青 | Load capacity and pressure regulating switch for transformer |
| CN102930964B (en) * | 2012-10-12 | 2015-08-05 | 沈阳昊诚电气股份有限公司 | A kind of three-phase loaded capacity-regulated transformer |
| CN203242512U (en) * | 2013-04-24 | 2013-10-16 | 辽宁金立电力电器有限公司 | On-load capacitance-regulating voltage-regulating tapping switch |
| CN203277071U (en) * | 2013-06-04 | 2013-11-06 | 苏州星州变压器有限公司 | Three-phase twelve-pulse-wave rectifier transformer structure |
| CN203706818U (en) * | 2013-12-14 | 2014-07-09 | 广东广特电气有限公司 | On-load capacity regulating transformer low-voltage wire outlet structure |
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Owner name: GUANGDONG GRID COMPANY QINGYUAN QINGXIN POWER SUPP Effective date: 20140806 |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Jijiang Inventor after: Liu Changjiang Inventor after: Lai Meiyun Inventor after: Luo Jianjun Inventor after: Luo Weibin Inventor after: Zheng Zhongyu Inventor before: Yu Jijiang Inventor before: Liu Changjiang |
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Free format text: CORRECT: INVENTOR; FROM: YU JIJIANG LIU CHANGJIANG TO: YU JIJIANG LIU CHANGJIANG LAI MEIYUN LUO JIANJUN LUO WEIBIN ZHENG ZHONGYU |
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Effective date of registration: 20140806 Address after: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Applicant after: Guangdong Guangte Electric Co., Ltd. Applicant after: QINGYUAN QINGXIN ELECTRIC POWER SUPPLY BUREAU OF STATE GRID GUANGDONG ELECTRIC POWER COMPANY Address before: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Applicant before: Guangdong Guangte Electric Co., Ltd. |
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Address after: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Patentee after: GUANGDONG GUANGTE ELECTRIC CO. LTD. Patentee after: QINGYUAN QINGXIN ELECTRIC POWER SUPPLY BUREAU OF STATE GRID GUANGDONG ELECTRIC POWER COMPANY Address before: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Patentee before: Guangdong Guangte Electric Co., Ltd. Patentee before: QINGYUAN QINGXIN ELECTRIC POWER SUPPLY BUREAU OF STATE GRID GUANGDONG ELECTRIC POWER COMPANY |