CN106449057A - Power frequency isolation transformer for direct current breaker energy supply system - Google Patents
Power frequency isolation transformer for direct current breaker energy supply system Download PDFInfo
- Publication number
- CN106449057A CN106449057A CN201611063105.7A CN201611063105A CN106449057A CN 106449057 A CN106449057 A CN 106449057A CN 201611063105 A CN201611063105 A CN 201611063105A CN 106449057 A CN106449057 A CN 106449057A
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- CN
- China
- Prior art keywords
- power frequency
- isolation transformer
- frequency isolation
- circuit breaker
- breaker energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention relates to a power frequency isolation transformer for a direct current breaker energy supply system. The power frequency isolation transformer comprises an iron core, an input coil arranged on the periphery of the iron core, an output coil arranged on the outer side of the input coil, input connection terminals connected with the input coil and output connection terminals connected with the output coil. First insulators of an umbrella skirt structure are at least poured into the two axial ends of the output coil, and second insulators of an umbrella skirt structure are poured into the periphery of the output connection terminals. A connecting part is further poured into the axial side portion of the output coil, and the connecting part, the first insulators and the second insulators are connected into an integrated insulator. According to the power frequency isolation transformer, the creepage distance and electric clearance are effectively increased by collectively arranging the insulators at the output connection terminals and the two ends of the output coil, and thus the pressure-proof level of the dry type transformer is improved greatly.
Description
Technical field
The invention belongs to electrical equipment is and in particular to a kind of dry-type transformer, that is, dc circuit breaker energy supplying system is used
Power frequency isolation transformer.
Background technology
Dry-type transformer generally includes iron core, input wires terminal, input coil, output wiring terminal, output winding etc.
Component, is wherein provided with insulator at output wiring terminal.Its creep age distance of the dry-type transformer of this structure is shorter, still
There is potential safety hazard, be not suitable for dc circuit breaker energy supplying system.
Content of the invention
It is an object of the invention to provide a kind of dc circuit breaker energy supplying system with larger creep age distance, higher-security
Use power frequency isolation transformer.
For reaching above-mentioned purpose, the technical solution used in the present invention is：
A kind of dc circuit breaker energy supplying system power frequency isolation transformer, including input that is unshakable in one's determination, being arranged at described iron core periphery
Coil, it is arranged at input wires terminal and the institute that the output winding outside described input coil is connected with described input coil
State the output wiring terminal that output winding is connected, described output winding two ends at least axially are cast with umbrella skirt construction
First insulator, described output wiring terminal periphery is cast with the second insulator of umbrella skirt construction.
Preferably, the sidepiece of the axial direction of described output winding is also cast with connecting portion, and described connecting portion is exhausted with described first
Edge, described second insulator connect as one formula insulator.
Preferably, described first insulator is provided with the full skirt that some height differ, described full skirt is along described output lead
The axial arranging of circle.
Preferably, described dc circuit breaker energy supplying system power frequency isolation transformer also include arm-tie, epoxy plate, several
End cushion block, interior insulation cylinder, external insulation cylinder；Described iron core is horizontal to arrange and has relative upper surface and surface, described arm-tie
In the upper and lower surface that described epoxy plate is divided into described iron core, described interior insulation jacket casing is located at described arm-tie and described
Outside epoxy plate, described input coil is arranged at outside described interior insulation cylinder, described external insulation jacket casing outside described input coil,
Described output winding is arranged at outside described external insulation cylinder, and described end cushion block is arranged at outside described arm-tie and described epoxy plate and position
In described interior insulation cylinder and described external insulation cylinder end thus supporting described interior insulation cylinder and described external insulation cylinder；Described first
Insulator is arranged at outside described external insulation cylinder.
Preferably, the outside at described arm-tie two ends is respectively arranged with upper clamping piece, and the outside at described epoxy plate two ends sets respectively
It is equipped with lower clamping piece, described upper clamping piece is connected by connecting bolt with described lower clamping piece correspondence.
Preferably, described lower clamping piece is connected with and isolates for dc circuit breaker energy supplying system power frequency described in built on stilts installation
The removable support of transformator.
Preferably, described upper clamping piece is connected with suspension ring.
Preferably, described iron core is laminated core.
Because technique scheme is used, the present invention compared with prior art has following advantages：The present invention passes through defeated
Go out at binding post and the two ends of output winding arrange insulator jointly, effectively increase creep age distance and electric clearance, from
And the stress levels of dry-type transformer are greatly improved.
Brief description
Accompanying drawing 1 is that the main view broken section of the dc circuit breaker energy supplying system power frequency isolation transformer of the present invention is illustrated
Figure.
Accompanying drawing 2 is the A portion zoomed-in view of the dc circuit breaker energy supplying system power frequency isolation transformer of the present invention.
Accompanying drawing 3 is that the left view broken section of the dc circuit breaker energy supplying system power frequency isolation transformer of the present invention is illustrated
Figure.
Accompanying drawing 4 is the schematic top plan view of the dc circuit breaker energy supplying system power frequency isolation transformer of the present invention.
In the figures above：1st, unshakable in one's determination；2nd, input coil；3rd, output winding；4th, input wires terminal；5th, outlet terminal
Son；6th, arm-tie；7th, epoxy plate；8th, end cushion block；9th, interior insulation cylinder；10th, external insulation cylinder；11st, upper clamping piece；12nd, lower clamping piece；13、
Reinforcing plate；14th, removable support；15th, Integral-type insulator；16th, suspension ring；17th, connecting bolt；18th, ground hole.
Specific embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings.
Embodiment one：As shown in accompanying drawing 1 is to accompanying drawing 4, a kind of dc circuit breaker energy supplying system power frequency isolation transformer, it
A kind of dry-type transformer, including unshakable in one's determination 1, input coil 2, output winding 3, input wires terminal 4, output wiring terminal 5 with
And arm-tie 6, epoxy plate 7, end cushion block 8, interior insulation cylinder 9, external insulation cylinder 10, upper clamping piece 11, lower clamping piece 12, they are assembled in one
Rise.
Unshakable in one's determination 1 adopts the laminated core that window height is more than 800mm, and it is fixed together by the merging of multi-disc silicon steel sheet stack
And constitute.This horizontal setting of iron core 1, thus having the upper and lower surface of horizontal expansion, this upper and lower surface is relatively.
Arm-tie 6 is arranged on unshakable in one's determination 1 upper surface.And epoxy plate 7 is then arranged on unshakable in one's determination 1 lower surface, i.e. arm-tie 6 and epoxy plate 7
By 1 clamping unshakable in one's determination between.It is arranged with interior insulation cylinder 9 outside arm-tie 6 and epoxy plate 7.Here outer finger dorsad 1 center unshakable in one's determination
Direction, accordingly, interior refer to towards 1 center unshakable in one's determination direction.Input coil 2 around being located at outside unshakable in one's determination 1, that is, is arranged on interior insulation cylinder
Outside 9.In the outer sheathed external insulation cylinder 10 of input coil 2.End cushion block 8 be used for by end fixing support interior insulation cylinder 9 and outer absolutely
Edge cylinder 10.Every group of interior insulation cylinder 9 and external insulation cylinder 10 typically require four end cushion blocks 8 of outfit, and they are divided into two groups and set up separately
At the two ends of outer insulating cylinder 10 and the axial direction of interior insulation cylinder 9, and two end cushion blocks 8 in a group are separately positioned on interior insulation cylinder
9 or external insulation cylinder 10 the two ends of one of end face longitudinal diameter at.End cushion block 8 is arranged on outside arm-tie 6 and epoxy plate 7,
Offer the draw-in groove being inserted and fixed for interior insulation cylinder 9 and external insulation cylinder 10 thereon.Output winding 3 is arranged on outside input coil 2
Side, that is, winding is outside outer insulating cylinder 10.On arm-tie 6 two ends, it is respectively provided with upper clamping piece 11, the two ends of upper clamping piece 11 are upwards
Bending, is connected by connected structure between arm-tie 6 and upper clamping piece 11.And it is respectively provided with lower clamping piece 12 under epoxy plate 7 two ends
And be connected with epoxy plate 7.It is fastenedly connected by connecting bolt 17 between one group of upper clamping piece being oppositely arranged 11 and lower clamping piece 12.
It is connected with suspension ring 16 above upper clamping piece 11.It is additionally provided with below lower clamping piece 12 for this dc circuit breaker energy supplying system of built on stilts installation
Removable support 14 with power frequency isolation transformer.Input wires terminal 4 is arranged on connecting bolt 17 lower end, it and input line
Circle 2 is connected.And two output wiring terminals 5 to be then arranged on output winding 3 outside and be positioned above, it and output winding 3
It is connected.Left and right end portions unshakable in one's determination 1 are additionally provided with the reinforcing plate 13 being connected with lower clamping piece 12, reinforcing plate 13 offers and connects
Ground hole 18.
Output winding 3 two ends at least axially are cast with the first insulator of umbrella skirt construction, and this first insulator sets
It is placed in the outside of external insulation cylinder 10, output wiring terminal 5 periphery is cast with the second insulator of umbrella skirt construction.Can also be in output
The sidepiece of the axial direction of coil 3（Including outside and inner side）Cast connecting portion, connecting portion is connected with the first insulator, the second insulator
And collectively forming Integral-type insulator 15, this Integral-type insulator 15 is cylindrical in shape.Wherein, the first insulator partly on be provided with
The full skirt that some height differ, full skirt axially equidistantly arranging along output winding 3, the second insulator partly on be also equipped with
Some full skirts.
Unshakable in one's determination 1 can adopt hollow iron core 1, two parallel partly on be respectively provided with input coil 2, input and connect
The parts such as line terminals 4, output winding 3, output wiring terminal 5 and Integral-type insulator 15.
Above-mentioned high pressure dry transformator passes through its Integral-type insulator 15 structure, can effectively increase creep age distance and electrically
Gap, thus increasing substantially its stress levels, its exchange long-term pressure grade is more than 50kV, and direct current long-term pressure grade is more than
50kV.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (8)
1. a kind of dc circuit breaker energy supplying system power frequency isolation transformer, including iron core, is arranged at the defeated of described iron core periphery
Enter coil, be arranged at the input wires terminal that the output winding outside described input coil is connected with described input coil and
Output wiring terminal that described output winding is connected it is characterised in that：Described output winding two ends at least axially are poured
It is marked with the first insulator of umbrella skirt construction, described output wiring terminal periphery is cast with the second insulator of umbrella skirt construction.
2. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 1 it is characterised in that：Described defeated
The sidepiece going out the axial direction of coil is also cast with connecting portion, and described connecting portion is with described first insulator, described second insulator even
It is connected in Integral-type insulator.
3. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 1 and 2 it is characterised in that：Institute
State and the full skirt that some height differ is provided with the first insulator, described full skirt is along the axial arranging of described output winding.
4. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 1 and 2 it is characterised in that：Institute
State dc circuit breaker energy supplying system power frequency isolation transformer and also include arm-tie, epoxy plate, several end cushion block, interior insulations
Cylinder, external insulation cylinder；Described iron core is horizontal to arrange and has relative upper surface and surface, and described arm-tie and described epoxy plate set up separately
In described upper and lower surface unshakable in one's determination, described interior insulation jacket casing is outside described arm-tie and described epoxy plate, described defeated
Enter coil and be arranged at outside described interior insulation cylinder, outside described input coil, described output winding sets described external insulation jacket casing
It is placed in outside described external insulation cylinder, described end cushion block is arranged at outside described arm-tie and described epoxy plate and is located at described interior insulation cylinder
With the end of described external insulation cylinder thus supporting described interior insulation cylinder and described external insulation cylinder；Described first insulator is arranged at institute
State outside external insulation cylinder.
5. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 4 it is characterised in that：Described draw
The outside at plate two ends is respectively arranged with upper clamping piece, and the outside at described epoxy plate two ends is respectively arranged with lower clamping piece, described upper clamping piece
It is connected by connecting bolt with described lower clamping piece correspondence.
6. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 5 it is characterised in that：Under described
Removable support for dc circuit breaker energy supplying system power frequency isolation transformer described in built on stilts installation is connected with folder.
7. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 4 it is characterised in that：On described
Suspension ring are connected with folder.
8. dc circuit breaker energy supplying system power frequency isolation transformer according to claim 1 and 2 it is characterised in that：Institute
Stating unshakable in one's determination is laminated core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063105.7A CN106449057A (en) | 2016-11-28 | 2016-11-28 | Power frequency isolation transformer for direct current breaker energy supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063105.7A CN106449057A (en) | 2016-11-28 | 2016-11-28 | Power frequency isolation transformer for direct current breaker energy supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106449057A true CN106449057A (en) | 2017-02-22 |
Family
ID=58218832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611063105.7A Withdrawn CN106449057A (en) | 2016-11-28 | 2016-11-28 | Power frequency isolation transformer for direct current breaker energy supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449057A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545998A (en) * | 2017-10-27 | 2018-01-05 | 江苏思源赫兹互感器有限公司 | A kind of isolating transformer |
| CN109148098A (en) * | 2018-10-09 | 2019-01-04 | 苏州康开电气有限公司 | Single phase ac current-limiting transformer |
| CN109215994A (en) * | 2018-10-09 | 2019-01-15 | 苏州康开电气有限公司 | Dry-type isolation transformer |
| CN110473698A (en) * | 2019-08-02 | 2019-11-19 | 全球能源互联网研究院有限公司 | A kind of insulating sleeve and preparation method thereof of DC isolation transformer |
| WO2020098750A1 (en) * | 2018-11-14 | 2020-05-22 | 全球能源互联网研究院有限公司 | High-voltage isolation transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4459575A (en) * | 1981-01-09 | 1984-07-10 | Licentia Patent-Verwaltungs-Gmbh | High power transformer |
| CN2906861Y (en) * | 2006-04-22 | 2007-05-30 | 浙江广天变压器有限公司 | Overlapped dry type resin insulated transformer |
| CN101060031A (en) * | 2006-04-22 | 2007-10-24 | 浙江广天变压器有限公司 | Dry-type resin insulation static dust removal and rectifying transformer |
| CN105493210A (en) * | 2013-07-18 | 2016-04-13 | Abb技术有限公司 | Enhanced track resistant dome structure for dry-type cast coil transformer |
| CN206236527U (en) * | 2016-11-28 | 2017-06-09 | 苏州康开电气有限公司 | Dc circuit breaker energy supplying system power frequency isolation transformer |
-
2016
- 2016-11-28 CN CN201611063105.7A patent/CN106449057A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4459575A (en) * | 1981-01-09 | 1984-07-10 | Licentia Patent-Verwaltungs-Gmbh | High power transformer |
| CN2906861Y (en) * | 2006-04-22 | 2007-05-30 | 浙江广天变压器有限公司 | Overlapped dry type resin insulated transformer |
| CN101060031A (en) * | 2006-04-22 | 2007-10-24 | 浙江广天变压器有限公司 | Dry-type resin insulation static dust removal and rectifying transformer |
| CN105493210A (en) * | 2013-07-18 | 2016-04-13 | Abb技术有限公司 | Enhanced track resistant dome structure for dry-type cast coil transformer |
| CN206236527U (en) * | 2016-11-28 | 2017-06-09 | 苏州康开电气有限公司 | Dc circuit breaker energy supplying system power frequency isolation transformer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545998A (en) * | 2017-10-27 | 2018-01-05 | 江苏思源赫兹互感器有限公司 | A kind of isolating transformer |
| CN107545998B (en) * | 2017-10-27 | 2024-02-23 | 江苏思源赫兹互感器有限公司 | Isolation transformer |
| CN109148098A (en) * | 2018-10-09 | 2019-01-04 | 苏州康开电气有限公司 | Single phase ac current-limiting transformer |
| CN109215994A (en) * | 2018-10-09 | 2019-01-15 | 苏州康开电气有限公司 | Dry-type isolation transformer |
| WO2020098750A1 (en) * | 2018-11-14 | 2020-05-22 | 全球能源互联网研究院有限公司 | High-voltage isolation transformer |
| CN110473698A (en) * | 2019-08-02 | 2019-11-19 | 全球能源互联网研究院有限公司 | A kind of insulating sleeve and preparation method thereof of DC isolation transformer |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170222 |