CN208781642U - Switchgear all insulation voltage transformer - Google Patents
Switchgear all insulation voltage transformer Download PDFInfo
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- CN208781642U CN208781642U CN201821696737.1U CN201821696737U CN208781642U CN 208781642 U CN208781642 U CN 208781642U CN 201821696737 U CN201821696737 U CN 201821696737U CN 208781642 U CN208781642 U CN 208781642U
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Abstract
The utility model relates to electric system high-tension measurement or relay protection device, in particular to a kind of switchgear all insulation voltage transformer.Including flat base, the major insulation body being mounted on flat base and it is sealed and placed in the intracorporal transformer body of major insulation, the top two sides of major insulation body are symmetrically arranged with primary insulation column, are equipped with the full skirt of multiple size intervals alternating laying on primary insulation column along short transverse.Support column is symmetrically arranged at left and right sides of the top of major insulation body, support column is truncated conical shape and tilts upward extension, and lower end and the major insulation body of support column mutually pass through, and primary insulation column is arranged in upper end along the vertical direction.The utility model is poured using epoxide resin vacuum, small in size, good appearance, flexible for installation, easy to maintain, is primarily adapted for use in 35KV switchgear.
Description
Technical field
The utility model relates to electric system high-tension measurement or relay protection device, in particular to a kind of switchgear is used complete exhausted
Edge voltage transformer.
Background technique
Voltage transformer is used as in the power system to measuring instrument, instrument or relay protection, and control device transmits information
Major electrical components, installation space, mounting means, small product size, properties of product, product capacity etc. have stringent want
It asks.With electrical modernization development, the matched switchgear of voltage transformer has become urban industry park, residential area, quotient
The departments such as industry center, industrial and mining enterprises are most preferably setting for electric energy distribution, control and electic protection as power supply unit and terminal device
It is standby；Common voltage mutual inductor makes the switchgear to form a complete production network because volume is big, capacity is small, installation is complicated, the disadvantages of need to safeguarding
The defects of bigger there is volume, in order to realize that the volume miniaturization of switch cabinet equipment, capacity is big, the functions such as flexible for installation are special
Point, it is accordingly required in particular to which development and design goes out the totally enclosed special circuit formula voltage transformer of a kind of small size, large capacity, subtracts on the whole
The size of small switchgear, the technical equipment of lifting switch cabinet, while reducing the economic cost of switchgear, improve switch
The market competitiveness of cabinet.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of switchgear all insulation voltage transformer, with
Change the status that existing voltage transformer volume is big, capacity is small, installation is complicated, maintenance is cumbersome.
To achieve the goals above, the utility model uses following technical scheme:
A kind of switchgear all insulation voltage transformer, it is exhausted including flat base, the master being mounted on the flat base
Edge body and it is sealed and placed in the intracorporal transformer body of the major insulation, the top two sides of the major insulation body are symmetrically arranged with primary insulation
Column, the primary insulation column are to be equipped with the full skirt that multiple size intervals are alternately laid along short transverse on cylindrical and outer surface.
Support column is symmetrically arranged at left and right sides of the top of the major insulation body, the support column is truncated conical shape and tilts
It upwardly extends, the lower end of the support column is mutually passed through with the major insulation body, and the primary insulation column is arranged in upper end along the vertical direction.
The lower end of the primary insulation column is connect by gusset with the major insulation body, the bottom of the gusset and the branch
Dagger connection.
The lower part of the major insulation body is square structure, and top is semicylinder, and the major insulation body is along the longitudinal direction
Symmetrical step structure.
Bottom at left and right sides of the major insulation body is hanging structure and bottom is equipped with groove.
The groove is the square groove being recessed upwards.
The front bottom end of the major insulation body is equipped with secondary connection platform, is covered with secondary terminal box on the secondary connection platform
Lid.
The secondary connection box cover is made of transparent material, has band lead sealing screw thereon.
The primary insulation column and secondary connection platform and the major insulation body are integral using epoxide resin vacuum casting
Formula structure.
The transformer body includes iron core, first winding and secondary winding, and wherein secondary winding and first winding are by interior
It is wound on an insulation framework upper rear set with one heart on iron core to outer.
The utility model have the following advantages that and the utility model has the advantages that
1. small in size, flexible for installation: the utility model optimizing structure design, structure is more compact, two primary connection ends
Son is the alternate cylindrical form of size full skirt, is vertically arranged at major insulation body symmetrical top outward in parallel angle,
Guarantee couples with the smooth of high voltage bus, can flexibly be installed in switchgear.
2. insulation is stablized, resistance to gradation for surface pollution is high: the utility model forms integral structure using epoxide resin vacuum casting,
It insulate reliable and stable, major insulation body is top multiple semicylinder superpositions front and back symmetrically in the excessive form of step, the left and right sides
It is provided with inside square groove, product surface creepage distance is effectively increased, will not be sent out because of dust dirt in longtime running
Raw arc dodges, electric discharge and Fault of Insulating Breakdown, insulation are more stable.
3. anti overvoltage, shock resistance: using high-quality silicon steel sheet permeability magnetic material, low magnetic density design, tool inside the utility model
There is higher anti-overvoltage capacity, it is whole to be formed using poured with epoxy resin, it, will not in the case of contact net overvoltage frequent impact
It is relatively reliable that failures, the security performances such as insulation damages occurs.
4. the utility model is primarily adapted for use in 35KV switchgear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1.
In figure: 1 is iron core, and 2 be secondary winding, and 3 be first winding, and 4 be primary insulation column, and 5 be secondary connection platform, and 6 are
Flat base, 7 be main insulator, and 8 be full skirt, and 9 be groove, and 10 be secondary connection box cover, and 11 be support column, and 12 be gusset.
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied
The utility model is described in detail in example.
As shown in Figure 1-3, a kind of switchgear all insulation voltage transformer provided by the utility model, including flat base
6, the major insulation body 7 being mounted on flat base 6 and the transformer body being sealed and placed in major insulation body 7, the top of major insulation body 7
Two sides are symmetrically arranged with primary insulation column 4, and primary insulation column 4 is to be equipped with multiple sizes along short transverse on cylindrical and outer surface
Alternate the full skirt 8 of laying.
Transformer body includes iron core 1, first winding 3 and secondary winding 2, and wherein secondary winding 2 is with first winding 3 by interior
It is wound on an insulation framework upper rear set with one heart on iron core 1 to outer.
The front bottom end of major insulation body 7 is equipped with secondary connection platform 5, is covered with secondary terminal box lid 10 on secondary connection platform 5.
Secondary connection box cover 10 is made of transparent material, has band lead sealing screw thereon.
Primary insulation column 4 and secondary connection platform 5 and major insulation body 7 are poured and integrated knot using epoxide resin vacuum
Structure.
Support column 11 is symmetrically arranged at left and right sides of the top of major insulation body 7, support column 11 is truncated conical shape and tilts upward
Extend, lower end and 7 phase of major insulation body of support column 11 are passed through, and primary insulation column 4 is arranged in upper end along the vertical direction.Primary insulation column 4
Lower end connect with major insulation body 7 by gusset 12, gusset 12 is square structure and bottom is connect with support column 11.
The lower part of major insulation body 7 is square structure, and top is semicylinder, and major insulation body 7 is symmetrical along the longitudinal direction
Step structure.The bottom of 7 left and right sides of major insulation body is hanging structure and bottom is equipped with groove 9.
In the embodiments of the present invention, groove 9 is the square groove being recessed upwards.
The manufacturing process of the utility model is:
Secondary winding 2 and first winding 3 are concentric from inside to outside to be wound on an insulation framework upper rear set on iron core 1, warp
It is fixed in casting mold after crossing insulation and buffering wrapping, is solidified using epoxide resin vacuum casting；Last integral installation
In on a flat base 6 with mounting hole；It is the alternate cylindrical form of size full skirt 8 that two primary insulation columns 4, which are top,
Two primary insulation columns 4 are parallel to each other and are vertically arranged at the symmetrical top outward of major insulation body 7, not only guarantee and height
The smooth connection of bus is pressed, and ensure that alternate with enough alternate air insulation distances and enough phases in use process
Between surface creepage distance, insulate it is relatively reliable；7 shape of major insulation body is the multiple semicylinder superpositions in top and front and back is symmetrical, is in
Step transition form, profiling and optimizing structure design guarantee that Inside coil surrounding has uniformly abundant insulation distance, Er Qieyun
With dust dirt that in the process will not be excessive because of long-term accumulation；Two primary insulation columns 4 pass through with the intermediate position of major insulation body 7
Rectangular gusset 12 is connected, and the lower portion of primary insulation column 4 passes through the support column 11 being obliquely installed and passes through with 7 phase of major insulation body,
Effectively increase alternate surface creepage distance；The bottom of 8 left and right sides of major insulation body is provided with inside square groove 9, guarantees to produce
The surface creepage distance of product high pressure over the ground；Secondary connection platform 5 is located at integral structure forward lower part, and secondary connection box cover 10 uses
Transparent material is made, and has band lead sealing screw thereon, integrally uses epoxy resin disposal molding with major insulation body, has dust-proof
The effect of waterproof.
The utility model is primarily adapted for use in 35KV switchgear, the one kind designed fully according to national standard and industry technology
New product, using electromagnetic conversion principle, enables secondary voltage accurately to reflect the variation feelings of primary voltage using iron core is rolled
Condition is used as voltage measurement and relay protection.
The utility model is poured using epoxide resin vacuum, product have small in size, good appearance, it is flexible for installation,
Insulate high reliable, resistance to gradation for surface pollution, easy to maintain, anti overvoltage, shock proof feature, and fitting entirely into China's electric system makes
With whole raising 35KV switch cabinet equipment manufacture level.
The foregoing is merely the embodiments of the present invention, are not intended to limit the protection scope of the utility model.It is all
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in novel protection scope.
Claims (10)
1. a kind of switchgear all insulation voltage transformer, which is characterized in that including flat base (6), be mounted on the plate
Major insulation body (7) on pedestal (6) and the transformer body being sealed and placed in the major insulation body (7), the major insulation body (7)
Top two sides are symmetrically arranged with primary insulation column (4), and the primary insulation column (4) is on cylindrical and outer surface along short transverse
The full skirt (8) alternately laid equipped with multiple size intervals.
2. switchgear according to claim 1 all insulation voltage transformer, which is characterized in that the major insulation body (7)
Top at left and right sides of be symmetrically arranged with support column (11), the support column (11) is truncated conical shape and to tilt upward extension, described
The lower end of support column (11) is mutually passed through with the major insulation body (7), and the primary insulation column (4) is arranged in upper end along the vertical direction.
3. switchgear according to claim 2 all insulation voltage transformer, which is characterized in that the primary insulation column
(4) lower end is connect by gusset (12) with the major insulation body (7), the bottom and the support column (11) of the gusset (12)
Connection.
4. switchgear according to claim 1 all insulation voltage transformer, which is characterized in that the major insulation body (7)
Lower part be square structure, top is semicylinder, the major insulation body (7) along the longitudinal direction be symmetrical step structure.
5. switchgear according to claim 4 all insulation voltage transformer, which is characterized in that the major insulation body (7)
The bottom of the left and right sides is hanging structure and bottom is equipped with groove (9).
6. switchgear according to claim 5 all insulation voltage transformer, which is characterized in that the groove (9) be to
The square groove of upper recess.
7. switchgear according to claim 1 all insulation voltage transformer, which is characterized in that the major insulation body (7)
Front bottom end be equipped with secondary connection platform (5), be covered with secondary terminal box lid (10) on the secondary connection platform (5).
8. switchgear according to claim 7 all insulation voltage transformer, which is characterized in that the secondary connection box cover
(10) it is made of transparent material, there is band lead sealing screw thereon.
9. switchgear according to claim 7 all insulation voltage transformer, which is characterized in that the primary insulation column
(4) it is poured with the major insulation body (7) using epoxide resin vacuum with secondary connection platform (5) and forms integral structure.
10. switchgear according to claim 1 all insulation voltage transformer, which is characterized in that the transformer body
Including iron core (1), first winding (3) and secondary winding (2), wherein secondary winding (2) and first winding (3) are concentric from inside to outside
An insulation framework upper rear set is wound on iron core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696737.1U CN208781642U (en) | 2018-10-19 | 2018-10-19 | Switchgear all insulation voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696737.1U CN208781642U (en) | 2018-10-19 | 2018-10-19 | Switchgear all insulation voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208781642U true CN208781642U (en) | 2019-04-23 |
Family
ID=66163210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821696737.1U Active CN208781642U (en) | 2018-10-19 | 2018-10-19 | Switchgear all insulation voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208781642U (en) |
-
2018
- 2018-10-19 CN CN201821696737.1U patent/CN208781642U/en active Active
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