CN106920662B - A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer - Google Patents
A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer Download PDFInfo
- Publication number
- CN106920662B CN106920662B CN201710306701.1A CN201710306701A CN106920662B CN 106920662 B CN106920662 B CN 106920662B CN 201710306701 A CN201710306701 A CN 201710306701A CN 106920662 B CN106920662 B CN 106920662B
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- China
- Prior art keywords
- auto
- current limliting
- transformer
- load voltage
- transformers
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- 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
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/02—Auto-transformers
Abstract
Current limliting auto-transformer, including three current limliting auto-transformers, insulating support, insulating barrier, chassis, catch are excessively used in a kind of distribution transformer on-load voltage regulation, it is characterised in that：Three current limliting auto-transformers are arranged in a straight line, it is mounted on the chassis by insulating support, it is separated by the insulating barrier between the current limliting auto-transformer, is separated by the insulating barrier between the current limliting auto-transformer and the chassis overhang.The transient mode solve on-load voltage regulating switch stop at bridge joint position or transit time it is long, transition apparatus is easy the problem of burning, it realizes when on-load voltage regulating switch stops at bridge joint position, current limliting auto-transformer can also work normally, and transformer normal work is not influenced, avoid the electric grid large area power cut accident caused by transition apparatus is burnt.
Description
Technical field
The present apparatus is related to power product technical field, is used in particular to a kind of distribution transformer on-load voltage regulation transition
Current limliting auto-transformer.
Background technology
Currently, the on-load voltage regulation transient mode of Domestic Transformers generally uses the transient mode of resistance-type.This resistance-type
Transient mode there are one very big hidden danger, when on-load voltage regulating switch stops at bridge joint position or transit time for some reason
When long, resistance will be burnt, and transformer is caused to burn out, and cause electric grid large area power cut accident.
Invention content
The object of the present invention is to provide a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer, the transition sides
Even if can work normally and will not burn if current limliting auto-transformer when formula on-load voltage regulating switch stops at bridge joint position, not shadow
Transformer normal work is rung, the above problem is solved, avoids electric grid large area power cut accident.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer, which is characterized in that the current limliting self coupling becomes
Depressor be it is a kind of for on-load voltage regulating switch carry out gear adjustment in bridge joint position when still can stable operation transition apparatus, institute
It includes three current limliting auto-transformers, insulating support, insulating barrier, chassis, catch to state current limliting auto-transformer；
Three current limliting auto-transformers are arranged in a straight line, are mounted on the chassis by the insulating support；
It is separated respectively by the insulating barrier between three current limliting auto-transformers；
It is separated by the insulating barrier between three current limliting auto-transformers and the chassis；
The catch is mounted on the chassis, locks the current limliting auto-transformer of end, and then fixed described three
A current limliting auto-transformer, prevents its movement；
Each current limliting auto-transformer includes frame shape iron core and two groups of windings being wound on the frame shape iron core,
The frame shape iron core is made of four sections of folded iron cores, is separated with cardboard between every two sections of cores pile in layers, and gap is formed；
Three current limliting auto-transformers are different according to the link position or mode of the leading-out end of two groups of windings,
Three kinds of conducting wire, reactor and current limliting auto-transformer states can be formed.
A preferred embodiment of the invention, the insulating barrier are made of multilayer insulation paper.
A preferred embodiment of the invention is wound on the coiling of two groups of windings on the frame shape iron core
The number of turns is identical, and coiling direction is opposite.
Compared with the existing technology, the invention has the advantages that solving on-load voltage regulating switch in the prior art is in bridge
When connecing position, the problem of transition apparatus is easy to burn, the reliability and safety of transition apparatus is improved.
Description of the drawings
Fig. 1 is current limliting auto-transformer principle schematic of the present invention.
Fig. 2 is a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer schematic diagram of the present invention.
Fig. 3 is a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer assembling schematic diagram of the present invention.
Fig. 4 is frame shape iron core schematic diagram of the present invention.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Embodiments described below is only used for more clearly from saying
Bright technical scheme of the present invention is the selected embodiment of the present invention, instead of all the embodiments, cannot limit this hair with this
Bright protection domain.The every other implementation that those skilled in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the invention discloses current limliting auto-transformer schematic diagrams, 1,2,3 to indicate transition current limliting auto-transformer
The leading-out end of winding, the winding of L1, L2 expression current limliting auto-transformer, the opposite in phase of winding L1 and L2, coiling the number of turns are identical.
When if the winding leading-out end 1,2 of current limliting auto-transformer links together i.e. L1, L2 parallel connection when, at this time L1, L2 produce
Raw magnetic field is cancelled out each other, and no induction reactance, L1, L2 only play the role of connecting line.
If the winding leading-out end 1 of current limliting auto-transformer, 2 incoming transport power supplys（Bridge position）When, that is, L1, L2 be connected on
In one circuit, L1, L2 form the auto-transformer of 1/2 transformation at this time.
If 1,2 any one leading-out end of winding leading-out end of current limliting auto-transformer, a circuit is formed with leading-out end 3
When, L1 or L2 is equivalent to a reactor at this time.
Referring to Fig. 2, Fig. 3, a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer, including three limits are disclosed
Stream auto-transformer 4.1,4.2,4.3, insulating support 5, insulating barrier 6.1,6.2,6.3,6.4,6.5, chassis 7, catch 8, three
4.3 is arranged in a straight line for a current limliting auto-transformer 4.1 ..., passes through insulating support 5（5.1…5.12）On chassis 7, current limliting is certainly
There is insulating barrier 6.1 between coupling transformer 4.1 and 4.2, there is insulating barrier 6.2 between current limliting auto-transformer 4.2 and 4.3, limits
There are insulating barrier 6.3,6.4,6.5, catch 8 to be mounted on chassis 7 between stream auto-transformer 4.1 ... 4.3 and chassis 7, locks
Current limliting auto-transformer 4.3,4.2,4.1 prevents its movement.Insulating barrier 6.1 ... 6.5 is made of multilayer insulation paper.Each current limliting
Auto-transformer 4.1 ... 4.3 is by frame shape iron core 9.1,9.2,9.3 and two groups of windings 10.1 being wound on frame shape iron core
（10.1.1、10.1.2、10.1.3）、10.2（10.2.1、10.2.2、10.2.3）Composition.
A kind of frame shape iron core 9.1 is disclosed referring to Fig. 4 ... 9.3, which is made of four sections of cores pile in layers,
It is separated with cardboard between every two sections of cores pile in layers, forms gap.
The above is only a preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several changes and improvements can also be made, these changes and improvements are also answered
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer, which is characterized in that the current limliting self coupling transformation
Device be it is a kind of for on-load voltage regulating switch carry out gear adjustment in bridge joint position when still can stable operation transition apparatus, it is described
Current limliting auto-transformer includes three current limliting auto-transformers, insulating support, insulating barrier, chassis, catch；
Three current limliting auto-transformers are arranged in a straight line, are mounted on the chassis by the insulating support；
It is separated respectively by the insulating barrier between three current limliting auto-transformers；
It is separated by the insulating barrier between three current limliting auto-transformers and the chassis；
The catch is mounted on the chassis, locks the current limliting auto-transformer of end, and then fixed three limits
Auto-transformer is flowed, its movement is prevented；
Each current limliting auto-transformer includes frame shape iron core and two groups of windings being wound on the frame shape iron core, described
Frame shape iron core is made of four sections of folded iron cores, is separated with cardboard between every two sections of cores pile in layers, and gap is formed；
Three current limliting auto-transformers are different according to the link position or mode of the leading-out end of two groups of windings, can shape
At three kinds of conducting wire, reactor and current limliting auto-transformer states.
2. a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer according to claim 1, feature exist
In the insulating barrier is made of multilayer insulation paper.
3. a kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer according to claim 1, feature exist
In the coiling the number of turns for being wound on two groups of windings on the frame shape iron core is identical, and coiling direction is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306701.1A CN106920662B (en) | 2017-05-04 | 2017-05-04 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306701.1A CN106920662B (en) | 2017-05-04 | 2017-05-04 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106920662A CN106920662A (en) | 2017-07-04 |
| CN106920662B true CN106920662B (en) | 2018-07-13 |
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| CN201710306701.1A Active CN106920662B (en) | 2017-05-04 | 2017-05-04 | A kind of distribution transformer on-load voltage regulation transition current limliting auto-transformer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202695100U (en) * | 2012-07-04 | 2013-01-23 | 无锡汉神电气有限公司 | Structure of main transformer consisting of multiple transformers in inverse power supply |
| CN103354159A (en) * | 2013-07-16 | 2013-10-16 | 吴江鑫霞纺织有限公司 | Improved autotransformer, |
| CN105239994A (en) * | 2014-07-11 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | Transformer short piece and electronic framework used for same |
| CN105743096A (en) * | 2015-11-26 | 2016-07-06 | 北海市深蓝科技发展有限责任公司 | Inrush current-free and arc shifting-free power distribution line single-phase automatic voltage regulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233703A (en) * | 1996-02-20 | 1997-09-05 | Aichi Electric Co Ltd | Step type automatic voltage adjuster |
-
2017
- 2017-05-04 CN CN201710306701.1A patent/CN106920662B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202695100U (en) * | 2012-07-04 | 2013-01-23 | 无锡汉神电气有限公司 | Structure of main transformer consisting of multiple transformers in inverse power supply |
| CN103354159A (en) * | 2013-07-16 | 2013-10-16 | 吴江鑫霞纺织有限公司 | Improved autotransformer, |
| CN105239994A (en) * | 2014-07-11 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | Transformer short piece and electronic framework used for same |
| CN105743096A (en) * | 2015-11-26 | 2016-07-06 | 北海市深蓝科技发展有限责任公司 | Inrush current-free and arc shifting-free power distribution line single-phase automatic voltage regulator |
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| Publication number | Publication date |
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| CN106920662A (en) | 2017-07-04 |
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