CN103474222A - Voltage transformer for outdoor use - Google Patents
Voltage transformer for outdoor use Download PDFInfo
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- CN103474222A CN103474222A CN 201310409367 CN201310409367A CN103474222A CN 103474222 A CN103474222 A CN 103474222A CN 201310409367 CN201310409367 CN 201310409367 CN 201310409367 A CN201310409367 A CN 201310409367A CN 103474222 A CN103474222 A CN 103474222A
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- winding
- secondary winding
- iron core
- silicon rubber
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Abstract
A voltage transformer for outdoor use comprises an iron core, a primary winding, a secondary winding and an outer casing. The secondary winding is wound on a secondary support made of epoxy resin, and layers of the secondary winding are insulated through insulation paper. The secondary winding is assembled on an iron core, a first main insulation layer arranged between the secondary winding and the iron core is a silicon rubber layer, the primary winding is wound on a primary framework, and the primary framework is an epoxy resin framework. Layers of the primary winding are insulated through insulation paper, and the primary winding is provided with a tower structure coil. The primary coil is sleeved on the secondary winding, and a second main insulation layer between the primary winding and the secondary winding adopts a silicon rubber layer. The primary winding, the secondary winding and the iron core are poured into an integral structure through silicon rubber. A silicon rubber pouring body is an inner casing, an epoxy resin outer casing is poured on the outside of the inner casing, and a first tower column and a second tower column are arranged on the upper end face of the epoxy resin outer casing. The voltage transformer has the advantages of being small in size, solving the problem of local discharging of a dry voltage transformer and being high in overload capacity, stable in running and long in service life.
Description
Technical field
The present invention relates to a kind of instrument transformer, particularly relate to a kind of voltage transformer of outdoor use, can effectively solve the partial discharge problem of dry type mutual inductor, the useful life of having improved instrument transformer.
Background technology
The outdoor instrument transformer used at present, be oil immersion type mutual-inductor mostly, and volume is large, heavy, easy to leak is oily, and environment is had to certain pollution.For solving the large and Leakage of instrument transformer volume, a kind of dry-type voltage inductor has appearred on market, although this dry type mutual inductor has solved the large and Leakage of volume, the partial discharge of voltage transformer, affect useful life of voltage transformer.
Summary of the invention
Purpose of the present invention, be to provide a kind of outdoor voltage transformer, and capacity is large, anti-overload ability is strong, and partial discharge is little, stable, long service life.
To achieve these goals, the technical scheme of employing is:
A kind of outdoor voltage transformer, comprise iron core, winding, secondary winding and a shell body.
Iron core is docked by two C shaped iron cores, and is fixed into an overall structure by support.Be convenient to like this installation of winding.
On the secondary support that the secondary winding winding makes at an epoxy resin, the interlayer of secondary winding insulate with insulating paper.Secondary winding is installed on iron core, and the first main insulating layer between secondary winding and iron core is silastic-layer, and silicone rubber insulation layer has improved insulation property between secondary winding and iron core.A winding, winding is on skeleton, and a skeleton is epoxy backbone.One time the winding layer insulation adopts insulating paper, a winding winding tower structure coil.One time winding is sleeved on secondary winding, and the second main insulation between winding and secondary winding adopts silastic-layer.
One time winding, secondary winding and iron core pour into an overall structure with silicon rubber, and the silicon rubber pour mass is inner housing, are cast with the epoxy package body outside inner housing.The first king-post and the second king-post are arranged on the upper surface of epoxy package body.
The two ends lead-in wire of a winding passes through respectively the first king-post and the second king-post, and with the first binding post, with the second binding post, is connected respectively.
Two end lead-in wires of secondary winding are connected with the corresponding wiring terminal in the terminal box that is located at the shell body bottom respectively.
The present invention adopts second pouring encapsulation, adopts for the first time silicon rubber that winding, secondary winding and an iron core are encapsulated, then outside the silicon rubber packaging body casting epoxy resin layer.Increase substantially like this insulation property of voltage transformer, solved the partial discharge problem of dry-type transformer, the useful life of having improved instrument transformer.
Advantage of the present invention:
Volume of the present invention is little, solved dry-type voltage inductor partial discharge problem, and anti-overload ability is strong, stable, long service life.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Embodiment
A kind of outdoor voltage transformer, comprise iron core 1, winding 2, secondary winding 3 and a shell body 4.
Iron core 1 is docked by two C shaped iron cores, and is fixed into an overall structure by support.Be convenient to like this installation of winding.
On the secondary support 5 that secondary winding 3 windings make at an epoxy resin, the interlayer of secondary winding 3 insulate with insulating paper.Secondary winding 3 is installed on iron core 1, and the first main insulating layer between secondary winding and iron core 1 is silastic-layer 6, and silicone rubber insulation layer has improved insulation property between secondary winding and iron core.A winding 2, winding is on skeleton 7, and one time skeleton 7 is epoxy backbone.One time the winding layer insulation adopts insulating paper, winding 2 winding tower structure coils.One time winding 2 is sleeved on secondary winding 3, and the second main insulation between winding 2 and secondary winding 3 adopts silastic-layer 8.
One time winding 2, secondary winding 3 and iron core 4 use silicon rubber pour into an overall structure, and the silicon rubber pour mass is inner housing 9, is cast with epoxy package body 4 outside inner housing, and the first king-post 10 and the second king-post 11 are arranged on the upper surface of epoxy package body 4.
The two ends lead-in wire of a winding passes through respectively the first king-post 10 and the second king-post 11, and with the first binding post 12, with the second binding post 13, is connected respectively.
Two end lead-in wires of secondary winding are connected with the corresponding wiring terminal in the terminal box that is located at shell body 4 bottoms respectively.
The present invention adopts second pouring encapsulation, adopts for the first time silicon rubber that winding, secondary winding and an iron core are encapsulated, then outside the silicon rubber packaging body casting epoxy resin layer.Increase substantially like this insulation property of voltage transformer, solved the partial discharge problem of dry-type transformer, the useful life of having improved instrument transformer.
Claims (1)
1. an outdoor voltage transformer, comprise iron core (1), a winding (2), secondary winding (3) and shell body (4); It is characterized in that:
Iron core (1) is docked by two C shaped iron cores, and is fixed into an overall structure by support; Be convenient to like this installation of winding;
The secondary support (5) that secondary winding (3) winding makes at an epoxy resin is upper, and the interlayer of secondary winding (3) insulate with insulating paper; It is upper that secondary winding (3) is installed in iron core (1), and the first main insulating layer between secondary winding and iron core (1) is silastic-layer (6), and a winding (2) winding is upper at a skeleton (7), and a skeleton (7) is epoxy backbone; One time the winding layer insulation adopts insulating paper, a winding (2) winding tower structure coil; It is upper that a winding (2) is sleeved on secondary winding (3), and the second main insulation between a winding (2) and secondary winding (3) adopts silastic-layer (8);
A winding (2), secondary winding (3) and iron core (4) pour into an overall structure with silicon rubber, and the silicon rubber pour mass is inner housing (9), are cast with epoxy package body (4) outside inner housing; The first king-post (10) and the second king-post (11) are arranged on the upper surface of epoxy package body (4);
The two ends lead-in wire of a winding passes through respectively the first king-post (10) and the second king-post (11), and with the first binding post (12), with the second binding post (13), is connected respectively;
Two end lead-in wires of secondary winding are connected with the corresponding wiring terminal in the terminal box that is located at shell body (4) bottom respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310409367 CN103474222A (en) | 2013-09-11 | 2013-09-11 | Voltage transformer for outdoor use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310409367 CN103474222A (en) | 2013-09-11 | 2013-09-11 | Voltage transformer for outdoor use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103474222A true CN103474222A (en) | 2013-12-25 |
Family
ID=49799032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310409367 Pending CN103474222A (en) | 2013-09-11 | 2013-09-11 | Voltage transformer for outdoor use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103474222A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922747A (en) * | 2018-07-17 | 2018-11-30 | 河南森源电气股份有限公司 | Current transformer |
| CN114639538A (en) * | 2022-04-26 | 2022-06-17 | 杭州裕正电子有限公司 | LLC high-frequency transformer and assembling method |
-
2013
- 2013-09-11 CN CN 201310409367 patent/CN103474222A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922747A (en) * | 2018-07-17 | 2018-11-30 | 河南森源电气股份有限公司 | Current transformer |
| CN114639538A (en) * | 2022-04-26 | 2022-06-17 | 杭州裕正电子有限公司 | LLC high-frequency transformer and assembling method |
| CN114639538B (en) * | 2022-04-26 | 2022-09-06 | 杭州裕正电子有限公司 | LLC high-frequency transformer and assembling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |