KR101942374B1 - Transformer - Google Patents
Transformer Download PDFInfo
- Publication number
- KR101942374B1 KR101942374B1 KR1020150059988A KR20150059988A KR101942374B1 KR 101942374 B1 KR101942374 B1 KR 101942374B1 KR 1020150059988 A KR1020150059988 A KR 1020150059988A KR 20150059988 A KR20150059988 A KR 20150059988A KR 101942374 B1 KR101942374 B1 KR 101942374B1
- Authority
- KR
- South Korea
- Prior art keywords
- winding
- ring
- main
- electrostatic ring
- transformer
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
A transformer in which an electric field at a winding end portion is relaxed is disclosed.
The disclosed transformer includes a first winding; A second winding spaced apart from the first winding and provided on the outer side or the inner side of the first winding; A first main static electricity ring provided so as to cover upper and lower edges of the first winding; A second main static electricity ring provided so as to cover upper and lower edges of the second winding; And a second main winding ring provided above the second main winding ring provided at the upper edge of the second winding and below the second main winding ring provided at the lower edge of the second winding, Ring.
According to such a transformer, the electric field at the end portion of the winding is alleviated, the insulating distance between the parts can be reduced while ensuring the insulation safety, and the effect of miniaturizing the device can be obtained.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer, and more particularly, to a transformer in which an electric field at a winding end is relaxed.
Generally, a transformer has an iron core and two or more windings, receives AC power from one or two or more circuits, modifies the voltage and current by an electromagnetic induction action, And supplies AC power of the same frequency to more than two circuits.
Such a transformer has a structure in which a low-voltage winding and a high-voltage winding are wound around a leg portion of an iron core in which a plurality of thin plates are laminated as a magnetic material.
Here, an electric field is concentrated at the corner of the winding. In order to alleviate such electric field concentration, an electrostatic ring is provided at the upper and lower portions of the winding or at the center of the winding.
However, the conventional transformer has a disadvantage in that it can not be designed and manufactured with a large radius of curvature of the electrostatic ring because the width of the winding is narrow.
In other words, in order to increase the radius of curvature of the electrostatic ring, the width of the electrostatic ring must be increased. When the electrostatic ring is wider than the winding, the electrostatic ring can not stably support the winding in the vertical direction. A problem may arise in which a part of the winding is released.
Therefore, the electrostatic ring needs to be made so that its width is smaller than or equal to the width of the windings.
Further, in the transformer according to the related art, when a height difference is generated between the windings, the electric field is concentrated on one winding to increase the insulation separation distance between the windings, resulting in a disadvantage that the volume of the entire transformer increases.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a transformer in which an electric field formed at an end of a winding is alleviated and an insulation distance between components can be reduced do.
According to one aspect of the present invention for achieving at least part of the above objects, A second winding spaced apart from the first winding and provided on the outer side or the inner side of the first winding; A first main static electricity ring provided so as to cover upper and lower edges of the first winding; A second main static electricity ring provided so as to cover upper and lower edges of the second winding; And a second main winding ring provided above the second main winding ring provided at the upper edge of the second winding and below the second main winding ring provided at the lower edge of the second winding, And a ring.
In one embodiment, the second winding may be configured such that the top edge is lower than the top of the first winding and the bottom edge is higher than the bottom of the first winding.
Further, in one embodiment, the auxiliary electrostatic ring may have a curvature radius of the outer circumference of the vertical section larger than a radius of curvature of the outer circumference of the vertical section of the first and second main static arms.
Also, in one embodiment, the auxiliary electrostatic ring may have a larger radius of curvature than an edge of the outer circumference of the vertical cross section opposite to the edge facing the first main static ring.
According to an embodiment of the present invention having such a configuration, the electric field at the winding end portion is relaxed, so that the insulation distance between the parts can be reduced while securing insulation safety, and the device can be miniaturized.
1 is a side cross-sectional view of a winding part included in a transformer according to an embodiment of the present invention;
2 is a side cross-sectional view of a winding portion included in a transformer according to another embodiment of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
First, a transformer according to an embodiment of the present invention will be described with reference to FIG.
1, a
The
In one embodiment, the
The second winding 120 may be spaced apart from the first winding 110 and may be provided on the outer side or the inner side of the first winding 110.
In one embodiment, the
For example, when the
In the embodiment shown in FIGS. 1 and 2, the
The
The first main
The first main
In one example, the first main
The second main
The second main
In one embodiment, the second main
The second main
In one embodiment, the second main
For example, the second main
The auxiliary
That is, the auxiliary
1, in one embodiment, the auxiliary
As such, the auxiliary
In other words, there is a limit to the radius of curvature that can be applied to the edge portion of the vertical section, because the second main
Therefore, the auxiliary
As described above, the electric field concentration is relieved in the portion where the curvature is formed with a large radius of curvature. Therefore, the auxiliary
On the other hand, in one embodiment, the
Conversely, the lower end of the
Thus, the first main
At this time, the auxiliary
That is, the auxiliary
As described above, the auxiliary
Next, a
2, the
To this end, in an alternate embodiment, the auxiliary electrostatic ring 160-1 may include a second main electrostatic ring 160-1 as well as the auxiliary
On the other hand, in another embodiment, the auxiliary electrostatic ring 160-1 is provided on the side (the upper left side in the drawing) of the outer circumference of the vertical cross section facing the first main
The electric field is more concentrated at the end portion of the auxiliary electrostatic ring 160-1 opposite to the first main
While the present invention has been particularly shown and described with reference to particular embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims I would like to make it clear.
100: Transformer
110: 1st winding
120: Secondary winding
130: Barrier
140: 1st main static ring
150: 2nd main static ring
160, 160-1: auxiliary static ring
Claims (4)
A second winding spaced apart from the first winding and provided on the outer side or the inner side of the first winding;
A first main static electricity ring provided so as to cover upper and lower edges of the first winding;
A second main static electricity ring provided so as to cover upper and lower edges of the second winding; And
An auxiliary static electricity ring provided above the second main static electricity ring provided at the upper edge of the second winding and below the second main static electricity ring provided at the lower edge of the second secondary winding, ;
≪ / RTI >
Wherein the second winding has an upper end edge lower than an upper end of the first winding and a lower end edge higher than a lower end of the first winding.
Wherein the auxiliary electrostatic ring has a curvature radius at the outer periphery of the vertical section larger than a radius of curvature at the outer periphery of the vertical section of the first and second main electrostatic rings.
Wherein the auxiliary electrostatic ring has a radius of curvature larger than an edge at a corner opposite to the first main positive ring ring in an outer periphery of a vertical cross section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150059988A KR101942374B1 (en) | 2015-04-28 | 2015-04-28 | Transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150059988A KR101942374B1 (en) | 2015-04-28 | 2015-04-28 | Transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160128544A KR20160128544A (en) | 2016-11-08 |
KR101942374B1 true KR101942374B1 (en) | 2019-01-29 |
Family
ID=57527869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150059988A KR101942374B1 (en) | 2015-04-28 | 2015-04-28 | Transformer |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101942374B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013065762A (en) | 2011-09-20 | 2013-04-11 | Toshiba Corp | Stationary induction apparatus |
JP2014007298A (en) | 2012-06-25 | 2014-01-16 | Toshiba Corp | Oil-filled stationary induction electrical apparatus |
JP2014203973A (en) | 2013-04-04 | 2014-10-27 | 株式会社東芝 | Stationary induction electric apparatus |
JP2014204042A (en) | 2013-04-08 | 2014-10-27 | 株式会社東芝 | Stationary induction electric apparatus |
-
2015
- 2015-04-28 KR KR1020150059988A patent/KR101942374B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013065762A (en) | 2011-09-20 | 2013-04-11 | Toshiba Corp | Stationary induction apparatus |
JP2014007298A (en) | 2012-06-25 | 2014-01-16 | Toshiba Corp | Oil-filled stationary induction electrical apparatus |
JP2014203973A (en) | 2013-04-04 | 2014-10-27 | 株式会社東芝 | Stationary induction electric apparatus |
JP2014204042A (en) | 2013-04-08 | 2014-10-27 | 株式会社東芝 | Stationary induction electric apparatus |
Also Published As
Publication number | Publication date |
---|---|
KR20160128544A (en) | 2016-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20170221625A1 (en) | Magnetic devices including low ac resistance foil windings and gapped magnetic cores | |
JP3203802U (en) | Resonant type high current density transformer | |
US20180268991A1 (en) | Ac reactor having terminal base | |
US10347417B2 (en) | Three-phase AC reactor capable of reducing leakage of magnetic flux | |
JP2014204124A (en) | Transformer | |
US20220130602A1 (en) | Transformer And Method For Manufacturing Transformer | |
KR101026357B1 (en) | 3 phases delta type transformer | |
KR101942374B1 (en) | Transformer | |
KR101506698B1 (en) | iron core winding assembly for transformer | |
KR102618677B1 (en) | Transformer containing windings | |
CN109285661B (en) | Coil device | |
WO2016152328A1 (en) | Stationary induction apparatus | |
US3639872A (en) | Means for controlling the leakage flux in transformers | |
US9401237B1 (en) | Core passage step apparatus and methods | |
KR101563321B1 (en) | Transformer | |
TWI689952B (en) | Static induction appliances | |
KR101563259B1 (en) | Transformer | |
JP2016021512A (en) | Semi-air core reactor | |
KR101609189B1 (en) | Oil immersed transformer | |
KR102067389B1 (en) | Structure of connection wiring widing and electrostatic ring of transformer | |
KR101512072B1 (en) | Transformer | |
KR101580090B1 (en) | Core and transformer using the same | |
KR102135200B1 (en) | Static shield and transformer using the same | |
KR20150125420A (en) | Oil immersed power transformer | |
JP2020161576A (en) | Transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
N231 | Notification of change of applicant | ||
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |