CN208873602U - A kind of voltage transformer shielded with high-tension shielding and low pressure - Google Patents
A kind of voltage transformer shielded with high-tension shielding and low pressure Download PDFInfo
- Publication number
- CN208873602U CN208873602U CN201822008664.9U CN201822008664U CN208873602U CN 208873602 U CN208873602 U CN 208873602U CN 201822008664 U CN201822008664 U CN 201822008664U CN 208873602 U CN208873602 U CN 208873602U
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- China
- Prior art keywords
- voltage transformer
- tension shielding
- low pressure
- shielded
- deck
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of voltage transformer shielded with high-tension shielding and low pressure, including insulator, is set to insulate an intracorporal HV Terminal, high-tension shielding body, shading ring and metallic conductor；Former cavity where high potential cable termination, high-tension shielding body and a HV Terminal forms closed cavity, and the high voltage electric field of a HV Terminal is effectively shielded, keeps field strength in a HV Terminal more uniform, reduces partial discharge quantity；Insulator surface spray metal electric conductor simultaneously, shading ring connect to form low pressure shielding with metallic conductor, make voltage transformer surface voltage close to zero, realize that voltage transformer primary coil high voltage electric field is uniformly shielded within metallic conductor, voltage transformer surface can safe contact, guarantee voltage transformer can be safely operated.
Description
Technical field
The utility model relates to voltage transformer manufacture technology fields, have high-tension shielding and low pressure more particularly to one kind
The voltage transformer of shielding.
Background technique
Currently, the production method that elbow headstock formula voltage transformer is generallyd use is fixed primary embedding in mutual inductor industry
Terminal of part casting resin is in coniform, and built-in fuse envelope sets mode, while surface sprays one layer of semiconductive varnish, technique
There are not perfect place, field strength distribution is very uneven in HV Terminal of one side voltage transformer, is mainly manifested in electric field
Intensity excessively concentrates, a HV Terminal field strength height etc., and one layer of semiconductive varnish of spraying is applied alone in another aspect surface, is easy spraying not
Uniformly, appearance is coarse, is mainly manifested in mutual inductor surface easy damaged and locally charges, dare not directly touch.
Utility model content
The purpose of the utility model is to provide a kind of voltage transformers shielded with high-tension shielding and low pressure, reach field strength
Uniformly, effect securely and reliably.
To achieve the above object, the utility model provides following scheme:
A kind of voltage transformer shielded with high-tension shielding and low pressure, including insulator and to be set to the insulation intracorporal
HV Terminal, the voltage transformer further include high-tension shielding body, becket, deck and metallic conductor；
The surface of the insulator sprays the metallic conductor；
The high-tension shielding body is connect with the port of a HV Terminal, high potential cable termination, the high-tension shielding
Former cavity where body and a HV Terminal forms closed cavity, and the card-tight part of the deck is for fixing the high pressure
Cable plug, for accommodating fuse, the fuse is connect the closed cavity with a HV Terminal；
The becket and the deck constitute shading ring, and the deck is contacted with the metallic conductor, the metal
Electric conductor connect to form low pressure shielding with the shading ring；
The shading ring and the high-tension shielding body arranged concentric, the shading ring are located at the outer of the high-tension shielding body
Face, the shading ring are located at the middle position of the closed cavity, pass through ring between the shading ring and the high-tension shielding body
Oxygen insulation resin.
Optionally, the high-tension shielding body and the metal ring are at the frustum of a cone.
Optionally, the high-tension shielding body includes metal stretching net and metallic object, one end of the metal stretching net and institute
Becket connection is stated, the metallic object is arranged in the other end of the metal stretching net.
Optionally, the metallic object has annular groove.
Optionally, the deck is provided with circular hole.
Optionally, the high-tension shielding body is made for the metal stretching net and the metallic object after sandblasting welding.
Optionally, the shading ring is first by the deck and the welding metal rings, then by the deck after welding
With the becket sandblasting, finally the outer surface of the deck after sandblasting and the becket sprays semiconductor varnish and makes
At.
Optionally, the voltage transformer further includes being set to the intracorporal iron core of the insulation, first winding and secondary winding,
The first winding and the secondary winding arranged concentric, and be sleeved on the iron core.
Optionally, the iron core, the first winding and the secondary winding first through insulation processing and buffering wrapping after again
It is fixed in mold, is eventually formed in the insulator.
Optionally, the high-tension shielding body, the becket and the deck are fixed by mold, and use epoxy resin
It is poured the port that cured mode is set to a HV Terminal.
According to specific embodiment provided by the utility model, the utility model discloses following technical effects: this is practical new
Former cavity where type passes through high potential cable termination, high-tension shielding body and a HV Terminal forms closed cavity, will be primary high
The high voltage electric field of pressure side effectively shields, and keeps field strength in a HV Terminal more uniform, reduces partial discharge quantity, insulate simultaneously
Body surface face spray metal electric conductor, shading ring connect to form low pressure shielding with metallic conductor, make voltage transformer surface voltage
Close to zero, realize that voltage transformer primary coil high voltage electric field is uniformly shielded within metallic conductor, voltage transformer table
Face can safe contact, guarantee voltage transformer can be safely operated.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the section view for the voltage transformer shielded with high-tension shielding and low pressure that the embodiments of the present invention provide
The structure chart of figure and high-tension cable；
Fig. 2 is the main view for the voltage transformer shielded with high-tension shielding and low pressure that the embodiments of the present invention provide
Figure；
Fig. 3 is the left view for the voltage transformer shielded with high-tension shielding and low pressure that the embodiments of the present invention provide
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of voltage transformers shielded with high-tension shielding and low pressure, can guarantee
Voltage transformer can be safely operated.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
Embodiment
As shown in Figure 1, it includes exhausted that the voltage transformer provided in this embodiment shielded with high-tension shielding and low pressure, which includes,
Edge body 13 and a HV Terminal 7 in insulator 13, the voltage transformer further include high-tension shielding body 4, becket
12, deck 11 and metallic conductor 8；
The surface spray metal electric conductor 8 of insulator 13；
High-tension shielding body 4 is connect with the port of a HV Terminal 7, high potential cable termination 15, high-tension shielding body 4 and primary
Former cavity where HV Terminal 7 forms closed cavity, and the card-tight part of deck 11 is for fixing high potential cable termination 15, closing chamber
For accommodating fuse 14, fuse 14 is connect body with a HV Terminal 7；
Becket 12 and deck 11 constitute shading ring 5, and deck 11 is contacted with metallic conductor 8, metallic conductor 8 and shielding
The connection of ring 5 forms low pressure shielding；
Shading ring 5 and 4 arranged concentric of high-tension shielding body, shading ring 5 are located at the outside of high-tension shielding body 4, and shading ring 5 is located at
The middle position of closed cavity passes through epoxy resins insulation between shading ring 5 and high-tension shielding body 4.
High-tension shielding body 4 and becket 12 form the frustum of a cone.
High-tension shielding body 4 includes metal stretching net 9 and metallic object 10, and one end of metal stretching net 9 is connect with becket 12,
Metallic object 10 is arranged in the other end of metal stretching net 9.
Metallic object 4 has annular groove, is convenient for and matched 15 clamping of high potential cable termination.
Deck 11 is provided with circular hole, the fixation after being seated for high potential cable termination 15 and deck 11.
High-tension shielding body 4 is made for the metal stretching net 9 and metallic object 10 after sandblasting welding.
Shading ring 5 is first to weld deck 11 and becket 12, then by 12 sandblasting of deck 11 and becket after welding, most
The outer surface of the deck 11 after sandblasting and becket 12 sprays semiconductor varnish and is made afterwards.
The voltage transformer further includes iron core 1, first winding 2 and secondary winding 3 in the insulator 13, once around
Group 2 and 3 arranged concentric of secondary winding, and be sleeved on iron core 1.
Iron core 1, first winding 2 and secondary winding 3 are first fixed in mold after insulation processing and buffering wrapping again, finally
It is formed in insulator 13.
High-tension shielding body 4, becket 12 and deck 11 are fixed by mold, and use the cured mode of poured with epoxy resin
It is set to the port of a HV Terminal 7.
Former cavity where high potential cable termination 15, high-tension shielding body 4 and a HV Terminal 7 forms the wall of closed cavity
Body generates electric field after connecting with a HV Terminal 7 and is shielded effectively in closed cavity for accommodating fuse 14, fuse 14
It is interior, so that field strength is uniform, partial discharge quantity is reduced, and in 13 surface spray metal electric conductor 8 of insulator, shading ring and 5
It connect to form low pressure shielding with metallic conductor 8, makes voltage transformer surface voltage close to zero, realize that voltage transformer is primary
Coil high voltage electric field is uniformly shielded within metallic conductor 8, voltage transformer surface can safe contact, guarantee voltage transformer
It can be safely operated.
As shown in Fig. 2, insulator 13 and secondary connection platform 16 are mounted on bottom plate 17, elbow headstock formula mutual induction of voltage is formed
Device, the voltage transformer is in addition to the inner surface of secondary connection platform 16 and the surface not spray metal electric conductor of high-tension shielding body 4
8, remaining part all spray metal electric conductors 8 make voltage transformer surface voltage close to zero, realize that voltage transformer is primary
Coil high voltage electric field is uniformly shielded within metallic conductor, and voltage transformer surface can safe contact.
As shown in figure 3, voltage transformer includes two high-tension shielding bodies 4 and two shading rings 5, the card-tight part 6 of deck 11
Former cavity for fixing high potential cable termination 15, where high potential cable termination 15, high-tension shielding body 4 and a HV Terminal 7
It is formed for accommodating 14 cavity of fuse, realizes that effective shielding of high voltage electric field reduces shelf depreciation so that field strength is uniform
Amount.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of voltage transformer shielded with high-tension shielding and low pressure, including insulator and it is set to the insulation intracorporal one
Sub-high pressure terminal, which is characterized in that the voltage transformer further includes high-tension shielding body, becket, deck and metallic conductor；
The surface of the insulator sprays the metallic conductor；
The high-tension shielding body is connect with the port of a HV Terminal, high potential cable termination, the high-tension shielding body and
Former cavity where HV Terminal forms closed cavity, and the card-tight part of the deck is for fixing the high-tension cable
Plug, for accommodating fuse, the fuse is connect the closed cavity with a HV Terminal；
The becket and the deck constitute shading ring, and the deck is contacted with the metallic conductor, the metallic conduction
Body connect to form low pressure shielding with the shading ring；
The shading ring and the high-tension shielding body arranged concentric, the shading ring are located at the outside of the high-tension shielding body, institute
The middle position that shading ring is located at the closed cavity is stated, passes through epoxy resin between the shading ring and the high-tension shielding body
Insulation.
2. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that the height
Press shield and the metal ring at the frustum of a cone.
3. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that the height
Pressing shield includes metal stretching net and metallic object, and one end of the metal stretching net is connect with the becket, the metal
The metallic object is arranged in the other end of stretching nets.
4. the voltage transformer according to claim 3 shielded with high-tension shielding and low pressure, which is characterized in that the gold
Belonging to body has annular groove.
5. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that the card
Seat is provided with circular hole.
6. the voltage transformer according to claim 3 shielded with high-tension shielding and low pressure, which is characterized in that the height
Pressure shield is made for the metal stretching net and the metallic object after sandblasting welding.
7. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that the screen
Cover ring be first by the deck and the welding metal rings, then by after welding the deck and the becket sandblasting, finally
The outer surface of the deck and the becket after sandblasting sprays semiconductor varnish and is made.
8. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that the electricity
Pressure mutual inductor further includes being set to the intracorporal iron core of the insulation, first winding and secondary winding, the first winding and described two
Secondary winding arranged concentric, and be sleeved on the iron core.
9. the voltage transformer according to claim 8 shielded with high-tension shielding and low pressure, which is characterized in that the iron
Core, the first winding and the secondary winding are first fixed in mold after insulation processing and buffering wrapping again, are ultimately formed
In in the insulator.
10. the voltage transformer according to claim 1 shielded with high-tension shielding and low pressure, which is characterized in that described
High-tension shielding body, the becket and the deck are fixed by mold, and are arranged using the cured mode of poured with epoxy resin
In the port of a HV Terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008664.9U CN208873602U (en) | 2018-12-03 | 2018-12-03 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008664.9U CN208873602U (en) | 2018-12-03 | 2018-12-03 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873602U true CN208873602U (en) | 2019-05-17 |
Family
ID=66471766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822008664.9U Withdrawn - After Issue CN208873602U (en) | 2018-12-03 | 2018-12-03 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346302A (en) * | 2018-12-03 | 2019-02-15 | 大连北方互感器集团有限公司 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
-
2018
- 2018-12-03 CN CN201822008664.9U patent/CN208873602U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346302A (en) * | 2018-12-03 | 2019-02-15 | 大连北方互感器集团有限公司 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190517 Effective date of abandoning: 20230808 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190517 Effective date of abandoning: 20230808 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |