CN103730240A - Variable-flux voltage regulating auto transformer for maintaining constant low voltage - Google Patents
Variable-flux voltage regulating auto transformer for maintaining constant low voltage Download PDFInfo
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- CN103730240A CN103730240A CN201310725139.8A CN201310725139A CN103730240A CN 103730240 A CN103730240 A CN 103730240A CN 201310725139 A CN201310725139 A CN 201310725139A CN 103730240 A CN103730240 A CN 103730240A
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Abstract
The invention relates to a variable-flux voltage regulating auto transformer for maintaining constant low voltage, and belongs to the technical field of transformer manufacture. The technical scheme includes that the high voltage or medium voltage of the transformer is regulated through variable flux and is provided with an independent voltage regulation winding TV, a low-voltage winding LV is connected with a low-voltage compensation winding LT in series, and the voltage regulation winding TV is utilized to excite the low-voltage compensation winding LT, so that the constant low voltage is maintained; a four-leg transformer core is arranged in a transformer oil tank, four windings are sleeved on one main leg, and the core, the low-voltage winding LV, the voltage regulation winding TV, a medium-voltage winding MV and a high-voltage winding HV are sequentially arrayed from inside to outside; two windings are sleeved on the other main leg, and the core, a low-voltage exciting winding LE and the low-voltage compensation winding LT are sequentially arrayed from inside to outside. The variable-flux voltage regulating auto transformer has the advantages that a set of excitation and low-voltage compensation winding is arranged on core legs of the variable-flux voltage regulating auto transformer, and the voltage regulation winding is utilized to excite the low-voltage compensation winding, so that the constant low voltage is maintained.
Description
Technical field
The present invention relates to a kind of self coupling variable flux voltage regulation transformer that low voltage voltage is constant that maintains, belong to technical field of transformer manufacturing.
Background technology
Terminal voltage super, extra-high voltage electric transmission and transformation transformer is too high, pressure regulation difficulty, and background technology adopts neutral point variable flux voltage regulation conventionally, brings thus the problem of low voltage voltage fluctuation.The voltage constant that how to maintain low pressure in pressure regulation process is engineers and technicians' problem demanding prompt solutions.
Summary of the invention
The object of the invention is to provide a kind of self coupling variable flux voltage regulation transformer that low voltage voltage is constant that maintains, a set of excitation and low-voltage compensation winding are set on self coupling variable flux voltage regulation leg, utilize pressure regulation winding to low-voltage compensation winding excitation, to maintain the voltage constant of low pressure, solve the problem existing in background technology.
Technical scheme of the present invention is:
A kind ofly maintain the self coupling variable flux voltage regulation transformer that low voltage voltage is constant, transformer high-voltage or middle pressure are variable flux voltage regulation, have independently pressure regulation winding TV, and low pressure winding L V is connected in series a low-voltage compensation winding L T, and utilize pressure regulation winding TV to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage; In oil tank of transformer, be provided with a four-column type transformer core, on one of them principal post, cover has four windings, puts in order and is followed successively by from inside to outside: iron core-low pressure winding L V-pressure regulation winding TV-middle pressure winding MV-high pressure winding HV; On another principal post, cover has two windings, puts in order and is followed successively by from inside to outside: iron core-low pressure excitation winding LE-low-voltage compensation winding L T.
High pressure winding HV and middle pressure winding MV are self coupling wiring, neutral point place serial connection pressure regulation winding TV, by shunting switch regulate pressure regulation winding TV seal in the number of turn with change tapping voltage, at pressure regulation winding TV, seal in the low pressure excitation winding LE in parallel of number of turn place, by the terminal voltage of adjusting low pressure to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage.
Transformer end is provided with a single-phase shunting switch, for the variable flux voltage regulation of high pressure or medium voltage side.
The invention has the beneficial effects as follows: a set of excitation and low-voltage compensation winding are set on self coupling variable flux voltage regulation leg, utilize pressure regulation winding to low-voltage compensation winding excitation, to maintain the voltage constant of low pressure.
Accompanying drawing explanation
Fig. 1 is that transformer device structure of the present invention is arranged vertical view;
Fig. 2 is device body winding Pareto diagram of the present invention;
Fig. 3 is electrical wiring schematic diagram of the present invention;
In figure: press winding MV, 13 high pressure winding HV, 14 pressure regulation winding TV, 15 low pressure excitation winding LE, 16 low-voltage compensation winding L T, 17 iron cores, 18 shunting switchs, 19 fuel tanks in 11 low pressure winding L V, 12.
Embodiment
Below in conjunction with accompanying drawing, by example, the invention will be further described.
A kind ofly maintain the self coupling variable flux voltage regulation transformer that low voltage voltage is constant, transformer high-voltage or middle pressure are variable flux voltage regulation, have independently pressure regulation winding TV, and low pressure winding L V is connected in series a low-voltage compensation winding L T, and utilize pressure regulation winding TV to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage; In oil tank of transformer, be provided with a four-column type transformer core, on one of them principal post, cover has four windings, puts in order and is followed successively by from inside to outside: iron core-low pressure winding L V-pressure regulation winding TV-middle pressure winding MV-high pressure winding HV; On another principal post, cover has two windings, puts in order and is followed successively by from inside to outside: iron core-low pressure excitation winding LE-low-voltage compensation winding L T.
High pressure winding HV and middle pressure winding MV are self coupling wiring, neutral point place serial connection pressure regulation winding TV, by shunting switch regulate pressure regulation winding TV seal in the number of turn with change tapping voltage, at pressure regulation winding TV, seal in the low pressure excitation winding LE in parallel of number of turn place, by the terminal voltage of adjusting low pressure to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage.
Transformer end is provided with a single-phase shunting switch, for the variable flux voltage regulation of high pressure or medium voltage side.
Claims (3)
1. one kind maintains the self coupling variable flux voltage regulation transformer that low voltage voltage is constant, it is characterized in that: transformer high-voltage or middle pressure are variable flux voltage regulation, there is independently pressure regulation winding TV, low pressure winding L V is connected in series a low-voltage compensation winding L T, and utilize pressure regulation winding TV to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage; In oil tank of transformer, be provided with a four-column type transformer core, on one of them principal post, cover has four windings, puts in order and is followed successively by from inside to outside: iron core-low pressure winding L V-pressure regulation winding TV-middle pressure winding MV-high pressure winding HV; On another principal post, cover has two windings, puts in order and is followed successively by from inside to outside: iron core-low pressure excitation winding LE-low-voltage compensation winding L T.
2. a kind of self coupling variable flux voltage regulation transformer that low voltage voltage is constant that maintains according to claim 1, it is characterized in that: high pressure winding HV and middle pressure winding MV are self coupling wiring, neutral point place serial connection pressure regulation winding TV, by shunting switch regulate pressure regulation winding TV seal in the number of turn with change tapping voltage, at pressure regulation winding TV, seal in the low pressure excitation winding LE in parallel of number of turn place, by the terminal voltage of adjusting low pressure to low-voltage compensation winding L T excitation, constant to maintain low voltage voltage.
3. a kind of self coupling variable flux voltage regulation transformer that low voltage voltage is constant that maintains according to claim 1 and 2, is characterized in that: transformer end is provided with a single-phase shunting switch, for the variable flux voltage regulation of high pressure or medium voltage side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725139.8A CN103730240A (en) | 2013-12-25 | 2013-12-25 | Variable-flux voltage regulating auto transformer for maintaining constant low voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725139.8A CN103730240A (en) | 2013-12-25 | 2013-12-25 | Variable-flux voltage regulating auto transformer for maintaining constant low voltage |
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| Publication Number | Publication Date |
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| CN103730240A true CN103730240A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310725139.8A Pending CN103730240A (en) | 2013-12-25 | 2013-12-25 | Variable-flux voltage regulating auto transformer for maintaining constant low voltage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504864A (en) * | 2016-12-01 | 2017-03-15 | 保定天威保变电气股份有限公司 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
| CN106653331A (en) * | 2016-12-01 | 2017-05-10 | 保定天威保变电气股份有限公司 | Constant and variable flux common-core three-winding autotransformer |
| CN108346506A (en) * | 2018-05-07 | 2018-07-31 | 江苏华鹏变压器有限公司 | A kind of determination method of potential device and series transformer umber of turn |
| CN109727753A (en) * | 2017-10-27 | 2019-05-07 | 特变电工沈阳变压器集团有限公司 | A kind of extra-high voltage auto-transformer of pressure regulation excitation |
| CN110085405A (en) * | 2019-05-21 | 2019-08-02 | 保定天威保变电气股份有限公司 | A kind of transformer built-in voltage compensator and voltage compensating method |
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| JPS5790923A (en) * | 1980-11-27 | 1982-06-05 | Toshiba Corp | Transformer |
| JPS57148223A (en) * | 1981-03-09 | 1982-09-13 | Matsushita Electric Ind Co Ltd | Thermistor temperature detector |
| JPH11186070A (en) * | 1997-12-25 | 1999-07-09 | Hitachi Ltd | Single-phase autotransformer |
| CN101256891A (en) * | 2007-12-28 | 2008-09-03 | 保定天威集团有限公司 | Extra-high voltage single-phase autotransformer |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN101697312A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Low-voltage dual-voltage on-load-tap-changing auto-transformer |
| CN101697310A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
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- 2013-12-25 CN CN201310725139.8A patent/CN103730240A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5790923A (en) * | 1980-11-27 | 1982-06-05 | Toshiba Corp | Transformer |
| JPS57148223A (en) * | 1981-03-09 | 1982-09-13 | Matsushita Electric Ind Co Ltd | Thermistor temperature detector |
| JPH11186070A (en) * | 1997-12-25 | 1999-07-09 | Hitachi Ltd | Single-phase autotransformer |
| CN101256891A (en) * | 2007-12-28 | 2008-09-03 | 保定天威集团有限公司 | Extra-high voltage single-phase autotransformer |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN101697312A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Low-voltage dual-voltage on-load-tap-changing auto-transformer |
| CN101697310A (en) * | 2009-11-03 | 2010-04-21 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504864A (en) * | 2016-12-01 | 2017-03-15 | 保定天威保变电气股份有限公司 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
| CN106653331A (en) * | 2016-12-01 | 2017-05-10 | 保定天威保变电气股份有限公司 | Constant and variable flux common-core three-winding autotransformer |
| CN106504864B (en) * | 2016-12-01 | 2019-02-12 | 保定天威保变电气股份有限公司 | A kind of single-phase high voltage variable flux voltage variation (VFVV) auto-transformer |
| CN109727753A (en) * | 2017-10-27 | 2019-05-07 | 特变电工沈阳变压器集团有限公司 | A kind of extra-high voltage auto-transformer of pressure regulation excitation |
| CN108346506A (en) * | 2018-05-07 | 2018-07-31 | 江苏华鹏变压器有限公司 | A kind of determination method of potential device and series transformer umber of turn |
| CN110085405A (en) * | 2019-05-21 | 2019-08-02 | 保定天威保变电气股份有限公司 | A kind of transformer built-in voltage compensator and voltage compensating method |
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Application publication date: 20140416 |