CN206282701U - A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot - Google Patents
A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot Download PDFInfo
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- CN206282701U CN206282701U CN201621395611.1U CN201621395611U CN206282701U CN 206282701 U CN206282701 U CN 206282701U CN 201621395611 U CN201621395611 U CN 201621395611U CN 206282701 U CN206282701 U CN 206282701U
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Abstract
The utility model discloses a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot, it is related to transformer device structure design field, including the basic winding of high pressure Phase shift winding, high pressure, low pressure winding, iron core and insulating radiating system；The basic winding of high pressure Phase shift winding, high pressure and low pressure winding are followed successively by by the outside erection sequence of iron core；Insulating radiating system distributing installation is around high pressure Phase shift winding, the basic winding of high pressure and low pressure winding；Low pressure winding is located at the outermost of transformer body, low pressure winding contacts insulating oil of the transformer body near outside, because the insulation oil temperature on the outside of transformer body is relatively low, it is more beneficial for heat exchange and distributes, timely the heat that low pressure winding is produced is distributed, prevents low pressure winding from the phenomenon of overheat occur, low pressure winding is using the double cake formula structures of multi-channel parallel, low pressure winding produces the even density of electric current, prevents and produces low pressure winding hot-spot phenomenon because CURRENT DISTRIBUTION is uneven.
Description
Technical field
The utility model is related to transformer technology field, more particularly to a kind of electricity for preventing Transformer Winding hot-spot
Furnace transformer machine body structure.
Background technology
Furnace transformer is a kind of transformer for aiming at various electric furnaces offer power supplys, for the furnace transformer of Large Copacity,
Low pressure winding in transformer has the characteristics of voltage is low, electric current is big, the number of turn is few, the low pressure winding in the course of work in transformer
Easily there is the phenomenon of hot-spot in winding overhang, overheat occurs for a long time in winding can not only influence transformer spy in itself
Property, while can also damage transformer, or even there is blast generation danger.
Utility model content
The technical problems to be solved in the utility model is directed to above-mentioned the deficiencies in the prior art, there is provided one kind prevents transformer
The furnace transformer machine body structure of winding hot-spot, solves the problems, such as furnace transformer winding hot-spot, with thermal diffusivity
Well, the characteristics of preventing furnace transformer winding hot-spot.
In order to solve the above technical problems, technical solution adopted in the utility model is：One kind prevents Transformer Winding office
The furnace transformer machine body structure of portion's overheat, including the basic winding of high pressure Phase shift winding, high pressure, low pressure winding, iron core and insulation
Cooling system；The basic winding of high pressure Phase shift winding, high pressure and low pressure winding are followed successively by by the outside erection sequence of iron core；Insulating radiation
System distributing installation is around high pressure Phase shift winding, the basic winding of high pressure and low pressure winding；Low pressure winding uses multi-channel parallel
Double cake formula structures.
Preferably, the parallel branch number of low pressure winding is 20-40, and this kind of design can meet low pressure winding in itself
The characteristic having, can meet low pressure winding and insulating oil is fully contacted again, the good requirement of heat dissipation effect.
Preferably, the wire axial height that the 1st parallel branch at low pressure winding two ends is used is for low pressure winding is used
1.4 times -2.0 times of normal wires axial height；The wire axial direction that 2nd, 3,4 parallel branches at low pressure winding two ends are used
Highly for low pressure winding uses 0.7 times -0.9 times of normal wires axial height；Low pressure winding remaining parallel branch wire makes
With the wire of normal size, this kind of design can make the uniform current density in each parallel branch wire of low pressure winding, can drop
The temperature rise of the line cake of low low pressure winding end parallel branch, prevents low pressure winding from the phenomenon of hot-spot occur.
Preferably, high pressure Phase shift winding is identical with the basic winding axial height of high pressure, and low pressure winding axial height compares high pressure
Basic winding axial height is higher by 30mm-60mm, and this kind of design can reduce the current density of low pressure winding end line cake, so that
Reduce the generation of low pressure winding heat.
Preferably, insulating radiating system includes square ring, cushion block, support bar, paper web and kicker baffle, support bar and paper web group
Into the major insulation system between winding, square ring is fixedly mounted on the end of the basic winding of high pressure Phase shift winding, high pressure and low pressure winding,
Cushion block is arranged on the bottom of transformer pressing plate, and kicker baffle is arranged on the inside of high pressure Phase shift winding and the basic winding of high pressure.
Preferably, the number of the kicker baffle in each high pressure Phase shift winding and the basic winding of high pressure is no less than 3
Individual, kicker baffle plays a part of to enable transformer insulation oil to be flowed along specified path, so as to flow through whole winding
The surface of wire, improves radiating efficiency, so as to reduce the temperature rise of winding, the number for installing kicker baffle can be according to actual requirement
And set, but in order to reach the effect that heat is distributed, the number of kicker baffle should be no less than 3.
It is using the beneficial effect produced by above-mentioned technical proposal：The utility model prevents transformer by designing one kind
The furnace transformer machine body structure of winding hot-spot, makes low pressure winding be located at the outermost of transformer body in the design, low
Pressure winding contacts insulating oil of the transformer body near outside, because the insulation oil temperature on the outside of transformer body is relatively low, therefore
It is more beneficial for heat exchange and distributes, timely distribute the heat that low pressure winding is produced, prevents low pressure winding from overheat occur
Phenomenon, in addition low pressure winding low pressure winding is produced the even density of electric current using the double cake formula structures of multi-channel parallel, prevent
Occur producing low pressure winding hot-spot phenomenon because CURRENT DISTRIBUTION is uneven.Low pressure winding part can be eliminated by this scheme
The phenomenon of overheat.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is Fig. 1 mesolow winding construction schematic diagrames.
In figure：1st, high pressure Phase shift winding；2nd, the basic winding of high pressure；3rd, low pressure winding；4th, iron core；5th, cushion block；6th, square ring；7、
Paper web；8th, support bar；9th, pressing plate；10th, kicker baffle.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, preventing the furnace transformer machine body structure of Transformer Winding hot-spot for the utility model is a kind of
Structural representation, including the basic winding 2 of high pressure Phase shift winding 1, high pressure, low pressure winding 3, iron core 4 and insulating radiating system；By
The outside erection sequence of iron core 4 is followed successively by the basic winding 2 of high pressure Phase shift winding 1, high pressure and low pressure winding 3；Insulating radiating system point
Cloth is arranged on around the basic winding 2 of high pressure Phase shift winding 1, high pressure and low pressure winding 3；Low pressure winding 3 is double using multi-channel parallel
Cake formula structure.
Low pressure winding 3 is placed in this kind of design the outermost of transformer body, is made exhausted on the outside of low pressure winding 3 and transformer
Edge oil contact, because the insulation oil temperature of transformer Outboard Sections is told somebody what one's real intentions are, so advantageously in the exchange of heat, can make low
The heat that pressure winding 3 is produced is distributed in time, prevents low pressure winding 3 from the phenomenon of overheat occur, while transformer Outboard Sections is exhausted
Edge oil is more preferable than the mobility of the insulating oil of transformer center section, good heat dissipation effect, therefore low pressure winding 3 is arranged on into change
The outside of depressor device body can to greatest extent realize that low pressure winding 3 produces distributing for heat, prevent low pressure winding 3 from overheating.
Insulating radiating system in this structure of transformer body include square ring 6, cushion block 5, support bar 8, paper web 7 and be oriented to every
Plate 10, the major insulation system between support bar 8 and the composition winding of paper web 7, makes mutually insulated between winding, increases device for transformer sheet
The security feature of body.
Square ring 6 is fixedly mounted on the end of the basic winding 2 of high pressure Phase shift winding 1, high pressure and low pressure winding 3, the work of square ring 6
With being the insulating properties between enhancing winding, increase the security feature of device for transformer, while it is inside transformer that square ring 6 is played
Insulating oil provides the effect of path, contributes to insulating oil to be flowed in inside transformer, is conducive to distributing for heat.
Cushion block 5 be arranged on transformer pressing plate 9 bottom, cushion block 5 pressing plate 9 can be carried out it is spacing, prevent pressing plate 9 or so move
The dynamic passage for blocking transformer insulation oil, makes the asphalt channel of inside transformer winding smooth, is conducive to winding to produce heat
Distribute.
Kicker baffle 10 is arranged on the inside of high pressure Phase shift winding 1 and the basic winding 2 of high pressure, and kicker baffle 10 is played and makes change
The effect that depressor insulating oil can be flowed along specified path, so as to flow through the surface of whole winding conducting wire, improves radiating
Efficiency, so as to reduce the temperature rise of winding, the number for installing kicker baffle 10 can set according to actual requirement, but in order to reach
To the effect that heat is distributed, the number of kicker baffle 10 should be no less than 3.
As shown in Fig. 2 being the structural representation of low pressure winding 3, low pressure winding 3 uses the double cake formula structures of multi-channel parallel, due to
Low pressure winding 3 has the characteristics of voltage is low, electric current is big, the number of turn is few, and low pressure winding 3 can be around using the double cake formula structures of multi-channel parallel
The insulating oil contact of group wire and inside transformer more fully, is more beneficial for low pressure winding 3 and produces heat to distribute, low pressure around
The parallel branch number of group 3 is set to 20-40, and this kind of design can meet the characteristic that low pressure winding 3 has in itself, and energy
Meet low pressure winding 3 and insulating oil is fully contacted, the good requirement of heat dissipation effect.
The wire axial height that 1st parallel branch at the two ends of low pressure winding 3 is used normally is led for low pressure winding 3 is used
1.4 times -2.0 times of line axial height；The wire axial height that 2nd, 3,4 parallel branches at the two ends of low pressure winding 3 are used
For low pressure winding 3 uses 0.7 times -0.9 times of normal wires axial height；Low pressure winding 3 remaining parallel branch wire is used
The wire of normal size, this kind of design can make the uniform current density in low pressure winding 3 each parallel branch wire, can drop
The temperature rise of the line cake of the end parallel branch of low low pressure winding 3, prevents low pressure winding 3 from the phenomenon of hot-spot occur.
In addition, high pressure Phase shift winding 1 is identical with the basic axial height of winding 2 of high pressure, the axial height ratio of low pressure winding 3
The basic axial height of winding 2 of high pressure is higher by 30mm-60mm, and the electric current that this kind of design can reduce the end line cake of low pressure winding 3 is close
Degree, so as to reduce the generation of the heat of low pressure winding 3.
After adopting the above technical scheme, making low pressure winding 3 be located at the outermost of transformer body, the contact of low pressure winding 3 becomes
Depressor device body because the insulation oil temperature on the outside of transformer body is relatively low, therefore is more beneficial for heat near the insulating oil in outside
Exchange and distribute, timely distribute the heat that low pressure winding 3 is produced, prevent low pressure winding 3 from the phenomenon of overheat occur, except this it
Outer low pressure winding 3, by increasing first, the two ends axial height of parallel branch wire, is subtracted using the double cake formula structures of multi-channel parallel
The axial height of small by 2nd, 3,4 parallel branch wires, while making low pressure winding axial height winding 2 more basic than high pressure axially high
Degree is higher by 30mm-60mm, can so make the even density of the electric current of low pressure winding 3 each parallel branch, prevents due to electricity
Current density skewness produces the hot-spot phenomenon of low pressure winding 3.Elimination low pressure winding 3 can be reached by this scheme local
The effect of overheat.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
1. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot, including high pressure Phase shift winding（1）, high pressure
Basic winding（2）, iron core（4）And insulating radiating system, it is characterised in that：Also include low pressure winding（3）, by iron core（4）Outwards
Erection sequence is followed successively by high pressure Phase shift winding（1）, the basic winding of high pressure（2）And low pressure winding（3）；Insulating radiating system distribution peace
Mounted in high pressure Phase shift winding（1）, the basic winding of high pressure（2）And low pressure winding（3）Around；Low pressure winding（3）Using multichannel simultaneously
The double cake formula structures of connection.
2. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot according to claim 1, it is special
Levy and be：The low pressure winding（3）Parallel branch number be 20-40.
3. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot according to claim 1, it is special
Levy and be：The low pressure winding（3）The wire axial height that 1st parallel branch at two ends is used is low pressure winding（3）Make
With 1.4 times -2.0 times of normal wires axial height；Low pressure winding（3）What the 2nd, 3,4 parallel branches at two ends were used leads
Line axial height is low pressure winding（3）Use 0.7 times -0.9 times of normal wires axial height；Low pressure winding（3）Remaining is in parallel
Branch line conductor uses the wire of normal size.
4. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot according to claim 1, it is special
Levy and be：The high pressure Phase shift winding（1）With the basic winding of high pressure（2）Axial height is identical, low pressure winding（3）Axial height ratio
The basic winding of high pressure（2）Axial height is higher by 30mm-60mm.
5. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot according to claim 1, it is special
Levy and be：The insulating radiating system includes square ring（6）, cushion block（5）, support bar（8）, paper web（7）And kicker baffle（10）, branch
Stay（8）And paper web（7）Major insulation system between composition winding, square ring（6）It is fixedly mounted on high pressure Phase shift winding（1）, high pressure
Basic winding（2）And low pressure winding（3）End, cushion block（5）Installed in transformer pressing plate（9）Bottom, kicker baffle（10）
Installed in high pressure Phase shift winding（1）With the basic winding of high pressure（2）Inside.
6. a kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot according to claim 5, it is special
Levy and be：It is described installed in each high pressure Phase shift winding（1）With the basic winding of high pressure（2）Interior kicker baffle（10）Number not
Less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395611.1U CN206282701U (en) | 2016-12-19 | 2016-12-19 | A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395611.1U CN206282701U (en) | 2016-12-19 | 2016-12-19 | A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot |
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| Publication Number | Publication Date |
|---|---|
| CN206282701U true CN206282701U (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621395611.1U Active CN206282701U (en) | 2016-12-19 | 2016-12-19 | A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504872A (en) * | 2016-12-19 | 2017-03-15 | 保定天威集团特变电气有限公司 | A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot |
-
2016
- 2016-12-19 CN CN201621395611.1U patent/CN206282701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504872A (en) * | 2016-12-19 | 2017-03-15 | 保定天威集团特变电气有限公司 | A kind of furnace transformer machine body structure for preventing Transformer Winding hot-spot |
| CN106504872B (en) * | 2016-12-19 | 2019-05-03 | 保定天威集团特变电气有限公司 | A kind of furnace transformer machine body structure preventing transformer winding hot-spot |
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