CN205069348U - Iron core single -phase auto -transformer is rolled up to dry -type - Google Patents

Iron core single -phase auto -transformer is rolled up to dry -type Download PDF

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Publication number
CN205069348U
CN205069348U CN201520801122.0U CN201520801122U CN205069348U CN 205069348 U CN205069348 U CN 205069348U CN 201520801122 U CN201520801122 U CN 201520801122U CN 205069348 U CN205069348 U CN 205069348U
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China
Prior art keywords
iron core
coil
over block
cross
fixed
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Active
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CN201520801122.0U
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Chinese (zh)
Inventor
徐志华
牟璟
孙劲松
刘军启
郭兰
柴淑颖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Electric Industry Co Ltd
Original Assignee
In Baoding Railway Transformer Branch Co Of Ferroelectric Gas Industrial Co Ltd
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Priority to CN201520801122.0U priority Critical patent/CN205069348U/en
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Abstract

The utility model discloses an iron core auto transformer is rolled up to the dry -type, and the iron core is rolled up for the opening to the iron core, the opening is rolled up the iron core lower extreme and is fixed between base and two lower folders, and the upper end is fixed on two between the folder, the cross -over block is arranged in on two lower folders down, two sets of coils overlaps respectively on two vertical posts of iron core are rolled up to the opening to the pressure on the cross -over block, goes up cross -over block evenly distributed in two sets of coils upper end under, go up folder and last cross -over block to pass through closing device fixed for two, make the opening roll up iron core, coil, upper and lower cushion and closing device and compress tightly into one wholly, the coil is at upper and lower end leading -out terminal to copper pipe and lower copper bar in the connection, it is fixed by upper and lower folder with lower copper bar to go up the copper pipe, goes up drawing forth of copper pipe and lower copper bar and forms three leading -out terminal after the end is connected, and three leading -out terminal is drawn forth through the insulator. The utility model discloses the work efficiency of preparation is high, and no -load loss is low, and the noise is low, the environmental protection, and insulating nature and fire behaviour are strong, reducing and maintaining the number of times, cost of maintenance is low.

Description

Dry type volume iron core single-phase autotransformer
Technical field
The utility model belongs to power system of electric railway technical field, relates to a kind of single-phase autotransformer.
Background technology
Along with the fast development of electric railway, AT supply power mode (autotransformer feeding system) has become the main supply power mode of railway construction.At present, the structure of the 27.5kV railway special-purpose autotransformer of Domestic Transformers manufacturer production is oil immersed type structure.Its weak point: one be oil immersed type structure exist greatest problem be Leakage, contaminated environment; Two is because oil immersed type isolation material is transformer oil, there is poor fire, once break down, easily burns, especially in tunnel; Three is that oil-filled transformer needs periodic maintenance, and expense is relatively objective.
The high-power transformer of current China, its core structure substantially all adopts stack form, and winding adopts independent coiling, the manufacturing process of later stage suit, manufacture process is simple, but to amass utilance not high for stack core section, causes no-load current and no-load loss all larger.And reel iron core transformer, no-load loss and the large problem of no-load current can be solved, but require that winding must directly be wound on iron core, ribbon core coiling needs special spooling equipment, technique for coiling is complicated, operation inconvenience, coiling speed is slow, can only could coiling after producing iron core, can not make with iron core simultaneously, production efficiency is extremely low, substantially can not accomplish batch production.
Utility model content
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provides a kind of dry type open coil iron core autotransformer, and the iron core of this transformer and coil can operations simultaneously, and manufacture craft is simple, and operating efficiency is high; It reduces no-load loss, reduces noise, environmental protection, and by force, reduce maintenance times, maintenance cost is low for insulating properties and fire resistance.
For achieving the above object, technical solution of the present utility model is: a kind of dry type volume iron core autotransformer, and it comprises base, iron core, two groups of coils, upper and lower cross-over block, two upper clamping pieces, two lower clamping pieces, hold down gag, upper copper pipe, lower copper bar and insulators; Iron core is open coil iron core; Open coil iron core lower end is fixed between base and two lower clamping pieces, and upper end is fixed between two upper clamping pieces; Lower cross-over block is placed on two lower clamping pieces; Two groups of coils are enclosed within two vertical posts of open coil iron core respectively, and are pressed on lower cross-over block, and upper cross-over block is uniformly distributed in two groups of coil upper ends; Two upper clamping pieces and upper cross-over block are fixed by hold down gag, open coil iron core, coil, upper and lower cushion block and hold down gag are compressed in aggregates; Coil at upper and lower end leading-out terminal, and connects upper copper pipe and lower copper bar; Upper copper pipe and lower copper bar are fixed by upper and lower folder, three leading-out terminals are formed after upper copper pipe is connected with the exit of lower copper bar, three leading-out terminals are drawn by insulator: head end outlet terminal is positive feeder winding exit F, middle outlet terminal is rail or integrated ground terminal exit N, and end outlet terminal is contact line winding exit T.
Coil described above is by the multi-layer cylindrical structure of copper conductor coiling, and is poured into a mould by the epoxide resin vacuum of band filler.
The electric pressure of autotransformer described above is 27.5kV.
Iron core of the present utility model adopts open coil iron core, after can opening being opened, by upper and lower cross-over block, coil, hold down gag is arranged on open coil iron core becomes an overall structure, that is iron core of the present utility model and coil can make separately, supporting installation again after making, and its winding around is simply easy, without the need to special spooling equipment, iron core and coil separately make, and can make simultaneously, increase work efficiency.The utility model make operating efficiency high, no-load loss is low, and noise is low, environmental protection, insulating properties and fire resistance strong; Reduce maintenance times, maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model; (should front view be increased, the drawing of two coils can be seen)
Fig. 2 is left view of the present utility model;
Fig. 3 is the structural representation of the open coil iron core in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises base 1, iron core 3, two groups of coils 5, upper and lower cross-over block 6,4, two upper clamping pieces 7, two lower clamping pieces 2, hold down gag 8, upper copper pipe 10, lower copper bar 9 and insulators 11.Iron core 3 is open coil iron core.Open coil iron core 3 lower end is fixed between base 1 and two lower clamping pieces 2, and upper end is fixed between two upper clamping pieces.Lower cross-over block 4 is placed on two lower clamping pieces 2.Two groups of coils 5 are enclosed within two vertical posts of open coil iron core 3 respectively, and be pressed on lower cross-over block 4, upper cross-over block 6 is uniformly distributed in two groups of coil 5 upper ends, two upper clamping pieces 7 are fixed by hold down gag 8 with upper cross-over block 6, regulate hold down gag 8, make open coil iron core 3, coil 5, upper and lower cross-over block 6,4 and hold down gag 8 compress in aggregates.The upper and lower end leading-out terminal of two groups of coils 5, and connect upper copper pipe 10 and lower copper bar 9; Upper copper pipe 10 and lower copper bar 9 are fixed by upper clamping piece 7 and lower clamping piece 2, three leading-out terminals are formed after upper copper pipe 10 is connected with the exit of lower copper bar 9, three leading-out terminals are drawn by insulator 11: head end outlet terminal is positive feeder winding exit F, middle outlet terminal is rail or integrated ground terminal exit N, and end outlet terminal is contact line winding exit T.Preferably, described coil 5 is by the multi-layer cylindrical structure of copper conductor coiling, and is poured into a mould by the epoxide resin vacuum of band filler.Preferably, the electric pressure of described autotransformer is 27.5kV.
Above-described embodiment is only preferred and exemplary, and those skilled in the art can carry out the improvement of equivalent technologies according to the description of this patent, it is all in the protection range of this patent.

Claims (3)

1. a dry type volume iron core autotransformer, is characterized in that: it comprises base, iron core, two groups of coils, upper and lower cross-over block, two upper clamping pieces, two lower clamping pieces, hold down gag, upper copper pipe, lower copper bar and insulators; Iron core is open coil iron core; Open coil iron core lower end is fixed between base and two lower clamping pieces, and upper end is fixed between two upper clamping pieces; Lower cross-over block is placed on two lower clamping pieces; Two groups of coils are enclosed within two vertical posts of open coil iron core respectively, and are pressed on lower cross-over block, and upper cross-over block is uniformly distributed in two groups of coil upper ends; Two upper clamping pieces and upper cross-over block are fixed by hold down gag, open coil iron core, coil, upper and lower cushion block and hold down gag are compressed in aggregates; Coil at upper and lower end leading-out terminal, and connects upper copper pipe and lower copper bar; Upper copper pipe and lower copper bar are fixed by upper and lower folder, three leading-out terminals are formed after upper copper pipe is connected with the exit of lower copper bar, three leading-out terminals are drawn by insulator: head end outlet terminal is positive feeder winding exit F, middle outlet terminal is rail or integrated ground terminal exit N, and end outlet terminal is contact line winding exit T.
2. dry type volume iron core autotransformer according to claim 1, is characterized in that: described coil is by the multi-layer cylindrical structure of copper conductor coiling, and is poured into a mould by the epoxide resin vacuum of band filler.
3. dry type volume iron core autotransformer according to claim 1 and 2, is characterized in that: the electric pressure of described autotransformer is 27.5kV.
CN201520801122.0U 2015-10-18 2015-10-18 Iron core single -phase auto -transformer is rolled up to dry -type Active CN205069348U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520801122.0U CN205069348U (en) 2015-10-18 2015-10-18 Iron core single -phase auto -transformer is rolled up to dry -type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520801122.0U CN205069348U (en) 2015-10-18 2015-10-18 Iron core single -phase auto -transformer is rolled up to dry -type

Publications (1)

Publication Number Publication Date
CN205069348U true CN205069348U (en) 2016-03-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895338A (en) * 2016-06-29 2016-08-24 天津市特变电工变压器有限公司 Dry type transformer in wind power generator cabin
CN107887118A (en) * 2017-11-30 2018-04-06 浙江派尔电气有限公司 A kind of dry-type transformer of tape insulation pad briquetting
CN108010695A (en) * 2017-11-28 2018-05-08 山东泰开变压器有限公司 Single-phase autotransformer based on resistance to shorting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895338A (en) * 2016-06-29 2016-08-24 天津市特变电工变压器有限公司 Dry type transformer in wind power generator cabin
CN108010695A (en) * 2017-11-28 2018-05-08 山东泰开变压器有限公司 Single-phase autotransformer based on resistance to shorting
CN107887118A (en) * 2017-11-30 2018-04-06 浙江派尔电气有限公司 A kind of dry-type transformer of tape insulation pad briquetting

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180424

Address after: 071051 413 Baihua East Road, Baoding, Hebei

Patentee after: In ferroelectric gas Industrial Co., Ltd

Address before: No. 413, Baihua Dong Road, Baoding, Hebei Province, Hebei

Patentee before: In Baoding railway transformer branch company of ferroelectric gas Industrial Co., Ltd