CN104299764A - Novel capacity regulating transformer - Google Patents
Novel capacity regulating transformer Download PDFInfo
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- CN104299764A CN104299764A CN201410466092.2A CN201410466092A CN104299764A CN 104299764 A CN104299764 A CN 104299764A CN 201410466092 A CN201410466092 A CN 201410466092A CN 104299764 A CN104299764 A CN 104299764A
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Abstract
The invention provides a novel capacity regulating transformer. The novel capacity regulating transformer comprises a transformer body, a detection device, a control device and a capacity regulating device. The transformer body comprises an iron core, a winding and a main body. The signal output end of the detection device is connected with the signal input end of the control device, the signal output end of the control device is connected with the signal control end of the capacity regulating device, and the signal output end of the capacity regulating device is connected with high-tension coils and low-tension coils of the transformer body. The high-tension coils and the low-tension coils are independent coils. The high tension and the low tension are converted in a series-parallel connection mode. Compared with an existing capacity regulating transformer, the unit iron loss is low, and the energy-saving effect is greatly improved compared with an existing product.
Description
Technical field
The present invention relates to three-phase pressure swing techniques field, particularly the novel capacitance-adjustable transformer of one.
Background technology
For a long time, China's rural power grids have load, the feature that seasonal strong, average load rate is low, the transformer selected in building and upgrading of rural power grids should meet the load character of rural power grids, the no-load loss of further reduction transformer and no-load current, meet in the several years at present and in the future, the distribution transformer of new clothes and replacing possesses skills advance and operational reliability.Capacitance-adjustable transformer according to the transformer of this feature of rural power grids design, can meet the demand of rural power grids just completely.
Existing capacitance-adjustable transformer all adopts high pressure D-Y to change, low pressure series-multiple connection structure, and capacitance-adjustable transformer is mainly used in the uneven permanent place of load, and when using, normal use is in Large Copacity situation, and is zero in its load of all the other times, and existing capacitance-adjustable transformer exists one when carrying out capacity switching
irrational number, requires special high when selecting its low pressure number of turn, select turn ratio time often there will be the problems such as no-load voltage ratio is inaccurate, the not gentle impedance of straight resistance is overproof; when low capacity, iron-loss per unit weight is high; energy-saving effect is obvious not, and capacity transfer section is in the middle of coil, higher to the requirement of insulation processing.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of manufacture simply, can improve the novel capacitance-adjustable transformer of energy-saving effect.
Object of the present invention can be achieved through the following technical solutions:
A kind of novel capacitance-adjustable transformer, comprise transformer body, checkout gear, control device and apparatus for adjusting capacity, described transformer body comprises iron core, winding and device body, the signal output part of described checkout gear is connected with the signal input part of control device, the signal output part of described control device is connected with the signal controlling end of apparatus for adjusting capacity, the signal output part of described apparatus for adjusting capacity is connected with low-voltage coil respectively at the high-tension coil of transformer body, described high-tension coil and low-voltage coil are two independently coils, two coil windings are on an iron core, insulate between two coils, described height, low pressure is all changed by series-multiple connection, described height, two coils of low pressure are connected by iron core, described height, low-voltage coil respectively has six.
Described apparatus for adjusting capacity is manual apparatus for adjusting capacity.
Described two coils are piled up up and down, do medium, do strutting piece with insulating part between two coils with insulating oil.
In described two coils, upper planar coil and iron core upper end distance are 5-15mm, and lower planar coil and iron core lower end distance are 5-15mm, and the insulation distance of two coils is 7-17mm.
The beneficial effect of employing technique scheme is: the coil winding of transformer becomes two absolute coils, the high and low pressure of such transformer all carries out series-multiple connection conversion and realizes, the present invention is compared with existing product, when low capacity, iron-loss per unit weight is lower, energy-saving effect, compared with existing product, improves a lot.
Accompanying drawing explanation
Fig. 1 is high and low pressure coil schematic diagram of the present invention.
Fig. 2 is second gear high and low pressure coil schematic diagram of the present invention.
Fig. 3 is the present invention's five grades of high and low pressure coil schematic diagrames
Fig. 4 is electrical schematic diagram of the present invention.
Embodiment
Below in conjunction with Figure of description, present pre-ferred embodiments is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 4, a kind of novel capacitance-adjustable transformer, comprise transformer body, checkout gear, control device and apparatus for adjusting capacity, described transformer body comprises iron core, winding and device body, the signal output part of described checkout gear is connected with the signal input part of control device, the signal output part of described control device is connected with the signal controlling end of apparatus for adjusting capacity, the signal output part of described apparatus for adjusting capacity is connected with low-voltage coil respectively at the high-tension coil of transformer body, and described apparatus for adjusting capacity adopts manual capacity transfer.
Described high-tension coil and low-voltage coil are two independently coils, two coil windings are on an iron core, insulate between two coils, dielectric adopts insulating oil, strutting piece is done with insulating part, distance between two coils is 15mm, coil distance iron core upper surface distance is above 10mm, coil distance iron core lower surface distance is below 10mm, described high and low pressure is all changed by series-multiple connection, two coils of described high and low pressure are connected by iron core, and described high and low pressure coil respectively has six.
Be high and low pressure coil schematic diagram as shown in Figure 1, Figure 2 and Figure 3, for 500kVA transformer:
Because the load loss of product is identical, therefore do not compare at this, its no-load loss compares:
According to " design of transformer handbook "
No-load loss formula: P
0=K
1* P*G
Wherein: P0: no-load loss;
K1: technological coefficient (constant now gets 1.15)
P: iron-loss per unit weight (tabling look-up according to magnetic flux)
G: iron core weight (in this figure, heavy 599kg unshakable in one's determination)
Magnetic flux density formula: B=450*E
t/ A
t
B: magnetic flux density;
450: constant;
A
t: active iron core cross section;
E
t：
Magnetic flux during Large Copacity: B=16.36 thousand line, the iron-loss per unit weight 1.097W/ kilogram tabled look-up
P
0＝1.15*1.097*599＝685(W)
Magnetic flux: B=11.57 thousand line during conventional low capacity, the iron-loss per unit weight 0.628W/ kilogram tabled look-up
P
0＝1.15*0.628*599＝392(W)
Magnetic flux: B=8.18 thousand line during this technology low capacity, the iron-loss per unit weight 0.329W/ kilogram tabled look-up
P
0＝1.15*0.329*599＝205(W)
Parameter corresponding to six grades of the present invention is as following table:
Existing product adopts D-Y transformational structure, its product when carrying out capacity and switching because there is one
irrational number, requires special high when selecting its low pressure number of turn, when selecting the problem of turn ratio, do experiment time often there will be the problems such as no-load voltage ratio is inaccurate, the not gentle impedance of straight resistance is overproof.The present invention adopts high and low pressure series and parallel simultaneously, and form is identical with structure, is all 2:1, avoids the generation of above problem.
Above-mentionedly by reference to the accompanying drawings invention to be exemplarily described; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed this insubstantial that method of the present invention is conceived and technical scheme is carried out to improve; or the design of invention and technical scheme directly applied to other occasions, all within protection scope of the present invention without to improve.
Claims (4)
1. a novel capacitance-adjustable transformer, comprise transformer body, checkout gear, control device and apparatus for adjusting capacity, described transformer body comprises iron core, winding and device body, the signal output part of described checkout gear is connected with the signal input part of control device, the signal output part of described control device is connected with the signal controlling end of apparatus for adjusting capacity, the signal output part of described apparatus for adjusting capacity is connected with low-voltage coil respectively at the high-tension coil of transformer body, it is characterized in that, described high-tension coil and low-voltage coil are two independently coils, two coil windings are on an iron core, insulate between two coils, high described in described two coils, low pressure is all changed by series-multiple connection, described height, two coils of low pressure are connected by iron core, described height, low-voltage coil respectively has six.
2. the novel capacitance-adjustable transformer of one according to claim 1, is characterized in that, described apparatus for adjusting capacity is manual apparatus for adjusting capacity.
3. the novel capacitance-adjustable transformer of one according to claim 1, is characterized in that, described two coils are piled up up and down, do medium, do strutting piece with insulating part between two coils with insulating oil.
4. the novel capacitance-adjustable transformer of one according to claim 1, is characterized in that, in described two coils, upper planar coil and iron core upper end distance are 5-15mm, and lower planar coil and iron core lower end distance are 5-15mm, and the insulation distance of two coils is 7-17mm.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466092.2A CN104299764A (en) | 2014-09-12 | 2014-09-12 | Novel capacity regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466092.2A CN104299764A (en) | 2014-09-12 | 2014-09-12 | Novel capacity regulating transformer |
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|---|---|
| CN104299764A true CN104299764A (en) | 2015-01-21 |
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| CN201410466092.2A Pending CN104299764A (en) | 2014-09-12 | 2014-09-12 | Novel capacity regulating transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158307A (en) * | 2015-04-01 | 2016-11-23 | 贵州聚龙达科技有限公司 | A kind of controlled capacity transfer distribution transformer |
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|---|---|---|---|---|
| CN2901524Y (en) * | 2006-03-28 | 2007-05-16 | 中电电气集团有限公司 | Variable magnetic flux series and parallel regulating capacity transformer |
| CN101441931A (en) * | 2007-11-23 | 2009-05-27 | 上海市电力公司 | Dry transformer with adjustable capacity |
| CN102013307A (en) * | 2010-06-02 | 2011-04-13 | 李晓慧 | On-load capacity-regulation distributing transformer |
| CN102856087A (en) * | 2012-09-25 | 2013-01-02 | 辽宁金立电力电器有限公司 | Loaded capacitance-adjustable serial multibreak switch by series-parallel connection method |
| CN202948828U (en) * | 2012-11-28 | 2013-05-22 | 山东晨宇电气股份有限公司 | On-load intelligent capacity adjusting transformer |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
| WO2014122829A1 (en) * | 2013-02-06 | 2014-08-14 | 株式会社村田製作所 | Transformer module, electricity reception device, and electricity transmission device |
| CN204144038U (en) * | 2014-09-12 | 2015-02-04 | 合肥金德电力设备制造有限公司 | A kind of novel capacitance-adjustable transformer |
-
2014
- 2014-09-12 CN CN201410466092.2A patent/CN104299764A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2901524Y (en) * | 2006-03-28 | 2007-05-16 | 中电电气集团有限公司 | Variable magnetic flux series and parallel regulating capacity transformer |
| CN101441931A (en) * | 2007-11-23 | 2009-05-27 | 上海市电力公司 | Dry transformer with adjustable capacity |
| CN102013307A (en) * | 2010-06-02 | 2011-04-13 | 李晓慧 | On-load capacity-regulation distributing transformer |
| CN102856087A (en) * | 2012-09-25 | 2013-01-02 | 辽宁金立电力电器有限公司 | Loaded capacitance-adjustable serial multibreak switch by series-parallel connection method |
| CN202948828U (en) * | 2012-11-28 | 2013-05-22 | 山东晨宇电气股份有限公司 | On-load intelligent capacity adjusting transformer |
| WO2014122829A1 (en) * | 2013-02-06 | 2014-08-14 | 株式会社村田製作所 | Transformer module, electricity reception device, and electricity transmission device |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
| CN204144038U (en) * | 2014-09-12 | 2015-02-04 | 合肥金德电力设备制造有限公司 | A kind of novel capacitance-adjustable transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158307A (en) * | 2015-04-01 | 2016-11-23 | 贵州聚龙达科技有限公司 | A kind of controlled capacity transfer distribution transformer |
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Application publication date: 20150121 |