CN205542361U - Voltage transformer with equalizer ring - Google Patents
Voltage transformer with equalizer ring Download PDFInfo
- Publication number
- CN205542361U CN205542361U CN201620050291.XU CN201620050291U CN205542361U CN 205542361 U CN205542361 U CN 205542361U CN 201620050291 U CN201620050291 U CN 201620050291U CN 205542361 U CN205542361 U CN 205542361U
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- winding
- side winding
- coil
- voltage transformer
- grading ring
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Abstract
The utility model discloses a voltage transformer with equalizer ring, including the bolt of once working a telephone switchboard, the pouring body, secondary terminal box and mounting plate the coil pack has been installed to the inside of the pouring body, and this coil pack includes iron core, secondary coil, primary coil, left side winding and right side winding that primary coil connects including the electricity, left side winding and right side winding are by interior to outer width degressive precious pyramidal structure gradually, just the left side winding all adopts the coiling of double -deck 12 lap wounds on PMP paper wire winding mode to form with the right side winding the both sides limit of left side winding and the equal hoop in both sides limit of right side winding are provided with the equalizer ring. It is showing the effect: through the effective balanced high -voltage electric field of voltage transformer coil of equalizer ring, primary coil adopts the pyramid -like structure, has increased insulation distance between the wiring end, has guaranteed product quality to through changing coil external diameter, the voltage -sharing that has further improved whole coil.
Description
Technical field
This utility model relates to transformer technical field, specifically, is a kind of voltage transformer with grading ring.
Background technology
In existing transformer, because of its high side voltage skewness, there is partial discharge quantity excessive, the exciting characteristic curve linearity is bad and the defect such as anti-saturation ability, it has been proposed that and improves by arranging grading ring.After primary winding arranges grading ring, be conducive to improving before transformer primary winding which floor turn-to-turn and interlayer field intensity, the partial discharge quantity reducing transformer product has been played certain effect.But, there are the following problems in actual motion for the transformer of this structure: high side voltage creep age distance deficiency on primary winding causes electrion, easily causes major safety risks, and the security performance of system is difficult to be protected.
It addition, the winding mode of existing transformer can not be effectively ensured the distance between terminals, need to be realized by remaining structure, relatively costly, it is impossible to avoid shelf depreciation.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of voltage transformer with grading ring, can the high voltage electric field of equalizing voltage mutual inductor coil by grading ring；And by changing winding mode, add the creep age distance of primary winding, thus avoid shelf depreciation excessive and high-voltage arc discharge phenomenon.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is as follows:
nullA kind of voltage transformer with grading ring，Including primary connection bolt、Pour mass、Secondary terminal box and mounting base，Described primary connection is bolted to the top of described pour mass，Described secondary terminal box is fixed on the bottom of described pour mass，Described mounting base is fixed on the bottom of described pour mass，It it is critical only that: is equiped with coil block in the inside of described pour mass，This coil block includes iron core，Described iron core is wound with secondary coil，This secondary coil electrically connects with described secondary terminal box，Described secondary coil goes back concentric locking collar and is provided with primary winding，Described primary winding electrically connects with described primary connection bolt，Described primary winding includes left side winding and the right side winding of electrical connection，Described left side winding and right side winding are the Pagoda-shaped structure that width from inside to outside gradually successively decreases，And described left side winding all uses double-deck PMP paper 1/2 lap wound winding mode coiling to form with right side winding，Grading ring all it has been arranged circumferentially at the dual-side of described left side winding and the dual-side of right side winding.
At the outside grading ring installed of two sections of windings of primary winding, the efficient balance high voltage electric field of voltage transformer coil, it is inherently eliminated the potential safety hazard greatly transformer device itself and surrounding caused because of partial discharge quantity.It addition, described primary winding uses pyramid-like structure, add insulation distance between binding post, it is ensured that product quality, and shelf depreciation can be effectively reduced, and by changing coil outer diameter, further increase all pressures of whole coil.And primary winding uses 1/2 lap wound winding mode to carry out coiling, decrease interlayer field intensity voltage, decrease shelf depreciation.
Further, described primary winding includes a winding skeleton and is covered in the first electrostatic sheild on this winding skeleton, it is wound with two sections of copper coils in the outside of described first electrostatic sheild, two sections of described copper coils is also disposed with the second electrostatic sheild, crimped paper and tightens cloth.
Pass through said structure, define high-low pressure screen layer, it is possible to effectively prevent the high voltage on primary winding from producing high-voltage breakdown phenomenon, between two sections of windings of primary winding, leave gap, increase high pressure creep age distance on primary winding, it is to avoid when voltage is excessive, produce high-voltage arc discharge.And adding coil high pressure radius of curvature by described electrostatic sheild, it is ensured that the field intensity of coil is uniform.
Further, two sections of copper coils in described primary winding are formed by copper cash layering coiling, being isolated by two-layer PMP insulating paper between adjacent two layers copper cash, the copper cash of internal layer is next layer of copper cash of coiling from the extraction of the edge of described insulating paper the insulating paper outside this layer of insulating paper.This design, it is possible to improve turn-to-turn and the interlayer field intensity of primary winding, effectively reduce the partial discharge quantity of product.
Further, the top of described left side winding is electrically connected with a binding post in described primary connection bolt by lead-out wire, an inserts respectively with the top of right side winding.
Further, described secondary coil passes sequentially through female with the embedding and described secondary terminal box of secondary lead-out wire and electrically connects.
Remarkable result of the present utility model is: be effectively prevent the point discharge phenomenon produced on equal pressing plate square edge by grading ring, is inherently eliminated the potential safety hazard caused transformer device itself and surrounding greatly because of partial discharge quantity；Primary winding uses pyramid-like structure, adds insulation distance between binding post, it is ensured that product quality, and can effectively reduce shelf depreciation, and by changing coil outer diameter, further increases all pressures of whole coil；Primary winding uses 1/2 lap wound winding mode to carry out coiling, decreases interlayer field intensity voltage, decreases shelf depreciation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the structural representation of described coil block；
Fig. 5 is the appearance schematic diagram of described primary winding；
Fig. 6 is the winding mode schematic diagram of described primary winding.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model and operation principle are described in further detail.
nullAs shown in Fig. 1～Fig. 6，A kind of voltage transformer with grading ring，Including primary connection bolt 1、Pour mass 2、Secondary terminal box 3 and mounting base 4，Described primary connection bolt 1 is fixed on the top of described pour mass 2，Described secondary terminal box 3 is fixed on the bottom of described pour mass 2，Described mounting base 4 is fixed on the bottom of described pour mass 2，It is characterized in that: be equiped with coil block 5 in the inside of described pour mass 2，This coil block 5 includes iron core 51，Described iron core 51 is wound with secondary coil 52，Described secondary coil 52 passes sequentially through secondary lead-out wire 9 and electrically connects with embedding female 10 and described secondary terminal box 3，Described secondary coil 52 goes back concentric locking collar and is provided with primary winding 53，The top of the left side winding in described primary winding 53 and the top of right side winding are respectively by a lead-out wire 7、Inserts 8 electrically connects with a binding post in described primary connection bolt 1，Described primary winding 53 includes left side winding and the right side winding of electrical connection，Described left side winding and right side winding are the Pagoda-shaped structure that width from inside to outside gradually successively decreases，And described left side winding all uses double-deck PMP paper 1/2 lap wound winding mode coiling to form with right side winding，Grading ring 6 all it has been arranged circumferentially at the dual-side of described left side winding and the dual-side of right side winding.
As shown in Figure 4, described primary winding 53 includes a winding skeleton and is covered in the first electrostatic sheild on this winding skeleton, it is wound with two sections of copper coils in the outside of described first electrostatic sheild, two sections of described copper coils is also disposed with the second electrostatic sheild, crimped paper and tightens cloth.
Pass through said structure, define high-low pressure screen layer, it is possible to effectively prevent the high voltage on primary winding from producing high-voltage breakdown phenomenon, between two sections of windings of primary winding 53, leave gap, increase high pressure creep age distance on primary winding 53, it is to avoid when voltage is excessive, produce high-voltage arc discharge；And adding coil high pressure radius of curvature by described electrostatic sheild, it is ensured that the field intensity of coil is uniform.
See accompanying drawing 6, two sections of copper coils in described primary winding 53 are formed by copper cash layering coiling, being isolated by two-layer PMP insulating paper between adjacent two layers copper cash, the copper cash of internal layer is next layer of copper cash of coiling from the extraction of the edge of described insulating paper the insulating paper outside this layer of insulating paper.Adopt coiling primary winding in this way, it is possible to improve turn-to-turn and the interlayer field intensity of primary winding, strengthen high pressure creep age distance on primary winding, prevent high-voltage breakdown phenomenon, effectively reduce the partial discharge quantity of product.
It can also be seen that from Fig. 2 with Fig. 3, it is additionally provided with four crossbeam projections 11 at the top of described pour mass 2, the creep age distance between two terminals of primary connection bolt is effectively increased by this crossbeam projection 11, this transformer can be used in worse environment, improve the anti-soil grade of product.
Claims (5)
1., with a voltage transformer for grading ring, including primary connection bolt (1), water
Injection body (2), secondary terminal box (3) and mounting base (4), described primary connection bolt
(1) being fixed on the top of described pour mass (2), described secondary terminal box (3) is fixed on
The bottom of described pour mass (2), described mounting base (4) is fixed on described pour mass (2)
Bottom, it is characterised in that: be equiped with coil block (5) in the inside of described pour mass (2),
This coil block (5) includes iron core (51), is wound with secondary line on described iron core (51)
Circle (52), this secondary coil (52) electrically connects with described secondary terminal box (3), described
Go back concentric locking collar on secondary coil (52) and be provided with primary winding (53), described primary winding (53)
Electrically connecting with described primary connection bolt (1), described primary winding (53) includes electrical connection
Left side winding and right side winding, described left side winding and right side winding are width from inside to outside
The Pagoda-shaped structure gradually successively decreased, and described left side winding and right side winding all use double-deck PMP
Paper 1/2 lap wound winding mode coiling forms, on the dual-side of described left side winding and right side around
The dual-side of group has all been arranged circumferentially grading ring (6).
Voltage transformer with grading ring the most according to claim 1, its feature exists
In: described primary winding (53) includes a winding skeleton and is covered in this winding bone
The first electrostatic sheild on frame, is wound with two sections of copper coils in the outside of described first electrostatic sheild,
Two sections of described copper coils are also disposed with the second electrostatic sheild, crimped paper and deflation
Cloth.
Voltage transformer with grading ring the most according to claim 2, its feature exists
In: two sections of copper coils in described primary winding (53) are formed by copper cash layering coiling,
Being isolated by two-layer PMP insulating paper between adjacent two layers copper cash, the copper cash of internal layer is from described
Next layer of copper cash of coiling in the edge extraction of insulating paper the insulating paper outside this layer of insulating paper.
Voltage transformer with grading ring the most according to claim 1 and 2, it is special
Levy and be: the top of the left side winding in described primary winding (53) and the top of right side winding
Respectively by lead-out wire (7), inserts (8) with in described primary connection bolt (1)
The electrical connection of binding post.
Voltage transformer with grading ring the most according to claim 1, its feature exists
In: described secondary coil (52) pass sequentially through secondary lead-out wire (9) and embedding mother (10) and
Described secondary terminal box (3) electrically connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050291.XU CN205542361U (en) | 2016-01-19 | 2016-01-19 | Voltage transformer with equalizer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050291.XU CN205542361U (en) | 2016-01-19 | 2016-01-19 | Voltage transformer with equalizer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542361U true CN205542361U (en) | 2016-08-31 |
Family
ID=56765416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620050291.XU Expired - Fee Related CN205542361U (en) | 2016-01-19 | 2016-01-19 | Voltage transformer with equalizer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205542361U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920639A (en) * | 2017-03-16 | 2017-07-04 | 江苏智达高压电气有限公司 | Cast-type mutual inductor is pressed in a kind of environment-friendly type |
| CN108597826A (en) * | 2018-04-27 | 2018-09-28 | 上海大互电力电器有限公司 | Totally-enclosed epoxy resins insulation voltage transformer |
| CN108711501A (en) * | 2018-05-08 | 2018-10-26 | 河南森源电气股份有限公司 | Current transformer pours into a mould tooling |
-
2016
- 2016-01-19 CN CN201620050291.XU patent/CN205542361U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920639A (en) * | 2017-03-16 | 2017-07-04 | 江苏智达高压电气有限公司 | Cast-type mutual inductor is pressed in a kind of environment-friendly type |
| CN108597826A (en) * | 2018-04-27 | 2018-09-28 | 上海大互电力电器有限公司 | Totally-enclosed epoxy resins insulation voltage transformer |
| CN108711501A (en) * | 2018-05-08 | 2018-10-26 | 河南森源电气股份有限公司 | Current transformer pours into a mould tooling |
| CN108711501B (en) * | 2018-05-08 | 2024-01-19 | 河南森源电气股份有限公司 | Casting tool for current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |