CN103632820A - 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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- CN103632820A CN103632820A CN201310678954.3A CN201310678954A CN103632820A CN 103632820 A CN103632820 A CN 103632820A CN 201310678954 A CN201310678954 A CN 201310678954A CN 103632820 A CN103632820 A CN 103632820A
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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 loads is that the variation with season changes.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, at slack seasons, there will be " low load with strong power " phenomenon, and capacity selects little, when the busy farming season, thereby because of the excessive initiation transformer burnout failure of loading; Spring Festival, many workers return to one's native place the New Year and steep increasing that make to load successively, if now the transformer of mountainous rural area burns out, have not only reduced widely festive air, and make troubles to people's life.
On market, occur a kind of loaded capacity-regulated transformer now, it has two kinds of capacity that vary in size, and can adjust according to payload.Its fundamental design idea is: Three-Phase Transformer high pressure winding is triangle (D) when large capacity, 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 capacity 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 therefore arrangement and the low-pressure line-outgoing mode of lead-in wire just seem extremely important, if Pin arrangement is improper or outlet method is inconsiderate, all will cause lead-in wire consumption 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, can reduce to greatest extent wire length, 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, the second coiling and the 3rd coiling, these three sections of coilings are on iron core, form from inside to outside three layers of distribution, the a3 end of the first coiling is connected with the x2 end of the second coiling, 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 lead-in wire are for arranging the same side, this winding protruding head is gone between and is connected with capacitance switch respective contacts by winding protruding head respectively, described winding protruding head lead-in wire moves towards along coil side, its orientation and winding protruding head to draw direction vertical.
Described the first coiling around to second and third coiling around to contrary.
One end that described winding protruding head lead-in wire is connected with capacitance switch contact 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 clamps 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 connected with the x2 end of the second coiling, the b3 end of the first coiling in b phase low pressure winding is connected with the y2 end of the second coiling, and the c3 end of the first coiling in c phase low pressure winding is connected with the z2 end of the second coiling.
The present invention is after having adopted such scheme, and its great advantage is to reduce to greatest extent wire length, reduces load loss, by wire clamp, lead-in wire is clamped simultaneously, thus the mechanical strength of increase 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.
Fig. 3 is low-voltage coil elementary diagram during large capacity 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.
Referring to accompanying drawing 1 to shown in 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, the second coiling 2-2 and the 3rd coiling 2-3, these three sections of coilings are on unshakable in one's determination 1, the first coiling 2-1 around to second, three coiling 2-2, 2-3 around on the contrary, form from inside to outside three layers of distribution, in a phase low pressure winding, the a3 end of the first coiling 2-1 is connected with the x2 end of the second coiling 2-2, in b phase low pressure winding, the b3 end of the first coiling 2-1 is connected with the y2 end of the second coiling 2-2, in c phase low pressure winding, the c3 end of the first coiling 2-1 is connected with the z2 end of the second coiling 2-2, 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 is the same side layout with winding protruding head lead-in wire 4, this winding protruding head 7 is gone between and 4 is connected with capacitance switch 3 respective contacts by winding protruding head respectively, winding protruding head lead-in wire 4 one end that are connected with capacitance switch 3 contacts are connected to Wiring nose, winding protruding head lead-in wire 4 is connected by this Wiring nose with capacitance switch 3 contacts, 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 and winding protruding head 7 to draw direction vertical, and winding protruding head lead-in wire 4 clamps 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 the mechanical strength of increase product.
The examples of implementation of the above are only the present invention's preferred embodiment, not with this, limit practical range of the present invention, therefore the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (5)
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), the second coiling (2-2) and the 3rd coiling (2-3), these three sections of coilings are on (1) unshakable in one's determination, form from inside to outside three layers of distribution, the winding protruding head of described three sections of coilings (7) is along (1) axial lead unshakable in one's determination, winding protruding head (7) is the same side layout with winding protruding head lead-in wire (4), this winding protruding head (7) respectively by winding protruding head go between (4) be connected with capacitance switch (3) respective contacts, described winding protruding head lead-in wire (4) moves towards along coil side, its orientation and winding protruding head (7) to draw direction vertical.
2. a kind of loaded capacity-regulated transformer low voltage tapping structure according to claim 1, is characterized in that: described the 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: described winding protruding head lead-in wire (4) is connected to Wiring nose with one end that capacitance switch (3) contact is connected, 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) clamps by wire clamp (5), and wire clamp (5) is fixed on folder (6).
5. a kind of loaded capacity-regulated transformer low voltage tapping structure according to claim 1, it is characterized in that: 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 connected with the x2 end of the second coiling (2-2), the b3 end of the first coiling (2-1) in b phase low pressure winding is connected with the y2 end of the second coiling (2-2), and the c3 end of the first coiling (2-1) in c phase low pressure winding is connected with the z2 end of the second coiling (2-2).
Priority Applications (1)
| 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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| 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 true CN103632820A (en) | 2014-03-12 |
| CN103632820B CN103632820B (en) | 2015-04-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766711A (en) * | 2014-11-17 | 2015-07-08 | 平高集团有限公司 | On-load capacitance and voltage regulating transformer and coil module thereof |
| CN104990639A (en) * | 2015-07-01 | 2015-10-21 | 广东电网有限责任公司电力科学研究院 | Fiber temperature measuring structure used for 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 |
| CN109378189A (en) * | 2018-12-03 | 2019-02-22 | 山东电工电气集团智能电气有限公司 | Transformer low voltage winding and loaded capacity-regulated 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 |
| CN115985656A (en) * | 2023-03-20 | 2023-04-18 | 保定天威保变电气股份有限公司 | Distribution network voltage regulation phase modulation transformer wiring structure |
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| GB346926A (en) * | 1929-03-06 | 1931-04-23 | Elettromecc Scarpa & Magnano S | Improvements in or relating to apparatus for measuring alternating electric magnitudes |
| CN101090034A (en) * | 2007-05-14 | 2007-12-19 | 邵长青 | Load capacity and pressure regulating switch for transformer |
| CN102930964A (en) * | 2012-10-12 | 2013-02-13 | 沈阳昊诚电气股份有限公司 | Three-phase on-load capacitance-tuning 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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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB346926A (en) * | 1929-03-06 | 1931-04-23 | Elettromecc Scarpa & Magnano S | Improvements in or relating to apparatus for measuring alternating electric magnitudes |
| CN101090034A (en) * | 2007-05-14 | 2007-12-19 | 邵长青 | Load capacity and pressure regulating switch for transformer |
| CN102930964A (en) * | 2012-10-12 | 2013-02-13 | 沈阳昊诚电气股份有限公司 | Three-phase on-load capacitance-tuning 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 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766711A (en) * | 2014-11-17 | 2015-07-08 | 平高集团有限公司 | On-load capacitance and voltage regulating transformer and coil module thereof |
| CN104990639A (en) * | 2015-07-01 | 2015-10-21 | 广东电网有限责任公司电力科学研究院 | Fiber temperature measuring structure used for 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 |
| CN109378189A (en) * | 2018-12-03 | 2019-02-22 | 山东电工电气集团智能电气有限公司 | Transformer low voltage winding and loaded capacity-regulated transformer |
| 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 |
| CN109616294B (en) * | 2019-01-11 | 2024-05-24 | 浙江宝威电气有限公司 | Capacity-regulating transformer adopting three-phase linear arrangement Dy (Yy) connection method |
| 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 |
| CN115985656A (en) * | 2023-03-20 | 2023-04-18 | 保定天威保变电气股份有限公司 | Distribution network voltage regulation phase modulation transformer wiring structure |
| 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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| CN103632820B (en) | 2015-04-01 |
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Owner name: GUANGDONG GRID COMPANY QINGYUAN QINGXIN POWER SUPP Effective date: 20140806 |
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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 |