CN206210577U - A kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric - Google Patents
A kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric Download PDFInfo
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- CN206210577U CN206210577U CN201621123099.5U CN201621123099U CN206210577U CN 206210577 U CN206210577 U CN 206210577U CN 201621123099 U CN201621123099 U CN 201621123099U CN 206210577 U CN206210577 U CN 206210577U
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Abstract
The utility model discloses a kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric, include low-voltage coil, high-tension coil and voltage regulation coil, the low-voltage coil is between high-tension coil and high-tension coil is to the insulating cylinder and stay that multiple alternate arrangements are provided between voltage regulation coil；The high-tension coil upper end is provided with insulation closed loop configuration and insulation collar ring, wherein, the insulation closed loop configuration includes insulating end ring, convex cushion block and two closed loop square rings；The convex cushion block bottom surface is engaged with high-tension coil top end face, and one end of described two closed loop square rings is engaged with convex cushion block；The insulating end ring is engaged with the top surface of two closed loop square rings, wherein, described insulation collar ring one end bottom surface is engaged with insulating end ring top surface；Stay of described two closed loop square ring other ends respectively between low-voltage coil and high-tension coil and between the stay and high-tension coil and voltage regulation coil of high-tension coil and near high-tension coil is engaged.
Description
Technical field
The utility model is related to the technical field of transformer, refers in particular to a kind of twin coil band independence adjustable transformer master exhausted
Edge structure.
Background technology
Transformer is one of visual plant of power system, and as electricity needs is continuously increased, power transformer is also continuous
Development, however, the Insulation Problems of oil-immersed power transformer widely used on the market are always to cause transformer fault at present
One of the main reasons.In actual use, the Analysis of End Electric Field intensity of winding is relatively large, causes winding overhang for transformer
Most easily there is insulation fault in position.Secondly, the weak spot of the insulation system of transformer is exactly oil, and oil reduces away from reduction and oil volume
Will make oil disruptive field intensity improve, cause manufacturing enterprise it is more difficult improve dielectric strength while, also oil duct and oil volume are subtracted
It is small, main insulating structure is reduced.For this reason, it may be necessary to it is a kind of it is rational in infrastructure, safe and reliable, improve dielectric strength, reduce major insulation away from
From twin coil band independence adjustable transformer Main Insulation Structure of Electric.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of twin coil band independence adjustable transformer
Main Insulation Structure of Electric.
In order to realize above-mentioned purpose, a kind of double winding band independence adjustable transformer major insulation provided by the utility model
Structure, includes low-voltage coil, high-tension coil and voltage regulation coil, and the low-voltage coil is between high-tension coil and high-tension coil
To insulating cylinder and stay that multiple alternate arrangements are provided between voltage regulation coil；The high-tension coil upper end is provided with insulation
Closed loop configuration and insulation collar ring, wherein, the insulation closed loop configuration includes insulating end ring, convex cushion block and two closed loop angles
Ring；The convex cushion block bottom surface is engaged with high-tension coil top end face, and described two closed loop square rings one end with convex pad
Block is engaged；The insulating end ring is engaged with the top surface of two closed loop square rings, wherein, described insulation collar ring one end bottom surface with
Insulating end ring top surface is engaged；Described two closed loop square ring other ends are respectively between low-voltage coil and high-tension coil and near height
Between the stay and high-tension coil and voltage regulation coil of line ball circle and the stay near high-tension coil is engaged；The insulation collar ring is another
Stay between one end and low-voltage coil and high-tension coil and near low-voltage coil is engaged.
Preferably, the insulation collar ring and closed loop square ring are L-shaped square ring.
Further, the low-voltage coil, high-tension coil and voltage regulation coil be respectively mounted with iron yoke cushion block.
The utility model uses above-mentioned scheme, and its advantage is that two closed loop square rings of insulation closed loop configuration are encased
High-tension coil upper end forms the insulation system of closure, and the oil of oil duct is separated by by insulation collar ring and two closed loop square rings
Away from, improve the distribution of high-tension coil upper end electric field and reduce maximum field intensity, while also significantly increase oil away from resistance to electricity
Intensity and insulating properties, and reduce the insulation distance of coil, so as to improve the insulating properties of transformer, reduce transformer
The insulation fault of end turn.
Brief description of the drawings
Fig. 1 is the new transformer major-insulation structure schematic diagram of this practicality.
Wherein, 1- low-voltage coils, 2- high-tension coils, 21- insulation closed loop configurations, 211- insulating end rings, 212- convex cushion blocks,
213- closed loop square rings, 22- insulation collar rings, 3- voltage regulation coils, 4- iron yoke cushion blocks, 5- insulating cylinders, 6- stays.
Specific embodiment
The utility model is further described with reference to specific embodiment.
Referring to shown in accompanying drawing 1, in the present embodiment, a kind of double winding band independence adjustable transformer Main Insulation Structure of Electric, transformation
Device includes low-voltage coil 1, high-tension coil 2 and voltage regulation coil 3, wherein, low-voltage coil 1 is located inside transformer, high-tension coil 2
Positioned at transformer middle part, voltage regulation coil 3 is located at outside transformer；According to requirement of mechanical strength, low-voltage coil 1, the and of high-tension coil 2
Voltage regulation coil 3 be respectively mounted with iron yoke cushion block 4；Low-voltage coil 1 between high-tension coil 2 to being provided with successively with insulating cylinder 5, stay
6th, the insulation system being engaged that puts in order of insulating cylinder 5, stay 6, insulating cylinder 5；High-tension coil 2 sets between voltage regulation coil 3
Be equipped with successively with insulating cylinder 5, stay 6, insulating cylinder 5, stay 6, insulating cylinder 5 the insulation system that is engaged of putting in order；Using
This mode, reduces the spacing between low-voltage coil 1 and high-tension coil 2, reduces between high-tension coil 2 and voltage regulation coil 3
Spacing.
In the present embodiment, the upper end of high-tension coil 2 is provided with insulation closed loop configuration 21 and insulation collar ring 22, wherein, absolutely
Edge closed loop configuration 21 includes insulating end ring 211, convex cushion block 212 and two closed loop square rings 213；Insulation collar ring 22 and closed loop angle
Ring 213 is L-shaped square ring.The bottom of convex cushion block 212 is mutually fixedly connected with the top of high-tension coil 2, and described two closed loop square rings
213 one end is in mating connection with convex cushion block 212；Insulating end ring 211 and two top surfaces of closed loop square ring 213 match
Close, wherein, one end bottom surface of insulation collar ring 22 is engaged with the top surface of insulating end ring 211；It is easy to transformation by using convex cushion block 212
The flowing of device oil.Two other ends of closed loop square ring 213 are respectively between low-voltage coil 1 and high-tension coil 2 and near high-tension coil 2
Stay 6 and high-tension coil 2 and voltage regulation coil 3 between and be engaged near the stay 6 of high-tension coil 2；Insulation collar ring 22 is another
Hold and be engaged with the stay 6 between low-voltage coil 1 and high-tension coil 2 and near low-voltage coil 1.By two closed loop square rings 213
Returning, encase the upper end of high-tension coil 2, form the insulation system of closure, improve the distribution of the upper end electric field of high-tension coil 2
With reduction maximum field intensity；Wherein, the part as oil duct that stay 6 is propped up, by insulation collar ring 22 and closed loop square ring 213
Separate oil duct oil away from, improve oil away from electric strength, prevent because oil is away from too small breakdown, so as to lift the insulation of transformer
Performance.
In the present embodiment, the bottom of the high-tension coil 2 is provided with insulation collar ring 22 and end is enclosed, wherein, the end circle
Top and bottom be engaged with the bottom surface of high-tension coil 2 with one end top surface of insulation collar ring 22 respectively；The insulation of the bottom of high-tension coil 2
The bottom surface of square ring 22 is engaged with the top surface of iron yoke cushion block 4, and the bottom Electric Field Distribution of high-tension coil 2, lifting are improved in this way
Insulating properties.
The embodiment of the above is only preferred embodiment of the present utility model, and any form is not done to the utility model
On limitation.Any those of ordinary skill in the art, in the case where technical solutions of the utility model ambit is not departed from, using upper
The technology contents for stating announcement make more possible variations and retouching to technical solutions of the utility model, or modification is this practicality
New Equivalent embodiments.Therefore all contents without departing from technical solutions of the utility model, made according to the thinking of the utility model
Equivalent equivalence changes, all should be covered by protection domain of the present utility model.
Claims (3)
1. a kind of double winding band independence adjustable transformer Main Insulation Structure of Electric, includes low-voltage coil（1）, high-tension coil（2）And tune
Line ball circle（3）, it is characterised in that：The low-voltage coil（1）To high-tension coil（2）Between and high-tension coil（2）To line pressure regulator
Circle（3）Between be provided with the insulating cylinder of multiple alternate arrangements（5）And stay（6）；The high-tension coil（2）Upper end is provided with
Insulation closed loop configuration（21）And insulation collar ring（22）, wherein, the insulation closed loop configuration（21）Include insulating end ring（211）、
Convex cushion block（212）With two closed loop square rings（213）；The convex cushion block（212）Bottom and high-tension coil（2）Top is mutually fixed
Coordinate, and described two closed loop square rings（213）One end with convex cushion block（212）It is in mating connection；The insulating end ring
（211）With two closed loop square rings（213）Top surface be engaged, wherein, the insulation collar ring（22）One end bottom surface and insulating end ring
（211）Top surface is engaged；Described two closed loop square rings（213）The other end respectively with low-voltage coil（1）With high-tension coil（2）Between
And near high-tension coil（2）Stay（6）And high-tension coil（2）With voltage regulation coil（3）Between and near high-tension coil（2）Support
Bar（6）It is engaged；The insulation collar ring（22）The other end and low-voltage coil（1）With high-tension coil（2）Between and near low-voltage line
Circle（1）Stay（6）It is engaged.
2. a kind of double winding band independence adjustable transformer Main Insulation Structure of Electric according to claim 1, it is characterised in that：It is described
Insulation collar ring（22）With closed loop square ring（213）It is L-shaped square ring.
3. a kind of double winding band independence adjustable transformer Main Insulation Structure of Electric according to claim 1, it is characterised in that：It is described
Low-voltage coil（1）, high-tension coil（2）And voltage regulation coil（3）It is respectively mounted and iron yoke cushion block（4）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621123099.5U CN206210577U (en) | 2016-10-14 | 2016-10-14 | A kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621123099.5U CN206210577U (en) | 2016-10-14 | 2016-10-14 | A kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric |
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| Publication Number | Publication Date |
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| CN206210577U true CN206210577U (en) | 2017-05-31 |
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| CN201621123099.5U Active CN206210577U (en) | 2016-10-14 | 2016-10-14 | A kind of twin coil band independence adjustable transformer Main Insulation Structure of Electric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378195A (en) * | 2018-11-30 | 2019-02-22 | 中电电气(江苏)股份有限公司 | A wide range of pressure regulation intermediate transformer |
-
2016
- 2016-10-14 CN CN201621123099.5U patent/CN206210577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378195A (en) * | 2018-11-30 | 2019-02-22 | 中电电气(江苏)股份有限公司 | A wide range of pressure regulation intermediate transformer |
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