CN108335893A - A kind of voltage transformer with fuse high-tension shielding apparatus - Google Patents
A kind of voltage transformer with fuse high-tension shielding apparatus Download PDFInfo
- Publication number
- CN108335893A CN108335893A CN201810304309.8A CN201810304309A CN108335893A CN 108335893 A CN108335893 A CN 108335893A CN 201810304309 A CN201810304309 A CN 201810304309A CN 108335893 A CN108335893 A CN 108335893A
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- CN
- China
- Prior art keywords
- fuse
- shielding apparatus
- voltage transformer
- pressure side
- tension shielding
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
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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
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- 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
- H01F27/402—Association of measuring or protective means
Abstract
The present invention relates to voltage transformer manufacture technology field, more particularly to a kind of voltage transformer with fuse high-tension shielding apparatus.Including insulator and the coil device body being sealed and placed in insulator, the top of insulator is equipped with high-pressure side auxiliary cylinder, high-pressure side auxiliary cylinder content is equipped with the fuse being connect with a HV Terminal, and the end of high-pressure side auxiliary cylinder is equipped with closeouts, high-tension shielding apparatus is equipped between fuse and high-pressure side auxiliary cylinder.High-tension shielding apparatus includes metal stretching net and is set to the upper becket at metal stretching net both ends and lower becket.This invention ensures that each high-pressure side auxiliary cylinder electric field intensity inside high is uniformly distributed, a HV Terminal high voltage electric field is effectively shielded, a high-pressure side auxiliary cylinder internal field is made more uniformly, to implement protective effect to insulation by force；The local discharging level of voltage transformer product is greatly improved simultaneously.
Description
Technical field
It is the present invention relates to voltage transformer manufacture technology field, more particularly to a kind of with fuse high-tension shielding apparatus
Voltage transformer.
Background technology
Currently, in mutual inductor industry, what the primary voltage transformer with fuse of voltage transformer generally used
Production method is cylindrical to fix an inserts casting resin, and built-in fuse envelope sets mode, has life for many years in China
Industry is tested, and with the continuous development of technological equipment industry, the voltage transformer manufacture craft with fuse is also constantly increasingly complete
Kind, compared to more ripe fixing, an inserts casting resin is cylindrical, and built-in fuse envelope, which sets mode still, has its technique endless
Distribution is very uneven by force for kind place, i.e. high-pressure side auxiliary cylinder internal field of voltage transformer, is mainly manifested in electric field strength and excessively collects
In, a HV Terminal field strength height etc..Therefore, the voltage transformer urgent need with fuse is a kind of more improving more advanced making
Technique further promotes the designing and manufacturing level of voltage transformer.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of mutual induction of voltage with fuse high-tension shielding apparatus
Device, to solve the problems, such as that HV Terminal electric-field intensity distribution of the existing voltage transformer with fuse is uneven.
To achieve the goals above, the present invention uses following technical scheme：
A kind of voltage transformer with fuse high-tension shielding apparatus, including insulator and be sealed and placed in insulator
The top of coil device body, the insulator is equipped with high-pressure side auxiliary cylinder, and the high-pressure side auxiliary cylinder content is equipped with and a HV Terminal
The end of the fuse of connection, the high-pressure side auxiliary cylinder is equipped with closeouts, is set between the fuse and the high-pressure side auxiliary cylinder
There is high-tension shielding apparatus.
The high-tension shielding apparatus include metal stretching net and be set to metal stretching net both ends upper becket and
Lower becket.
The lower becket is equipped with hickey, and the high-tension shielding apparatus passes through hickey and the insulator top
Inserts in portion connects.
The upper becket and lower becket are connect with the both ends of the metal stretching net by way of rolling.
The upper becket and lower becket are punch forming part.
The upper becket and lower becket are iron, copper or aluminium sheet punch forming, and the metal stretching net is iron, copper or aluminium
Matter stretching nets.
The lower end of the fuse is equipped with spring.
The closeouts include swivel nut and swivel nut bolt, and the swivel nut is embedded in the upper end of the high-pressure side auxiliary cylinder, described
Swivel nut bolt is connect with swivel nut, and the fuse is sealed and placed in the high-pressure side auxiliary cylinder.
The high-pressure side auxiliary cylinder and the insulator use the integral structure of poured with epoxy resin.
The closeouts are cable plug.
The invention has the advantages that and advantage：
1. the configuration of the present invention is simple, production efficiency are high：The present invention is that the fuse installation of voltage transformer makes base
A kind of mature technology innovation on plinth, i.e., use upper becket, lower becket and metal stretching net in a high-pressure side auxiliary cylinder
High-tension shielding is made to install and fix, integrated artistic scheme is easy to operate using roll forming, and working efficiency can be improved.
2. the present invention makes, a HV Terminal electric-field intensity distribution is uniform, product partial discharge quantity is small：Fuse will be carried
High-pressure side auxiliary cylinder of voltage transformer in plus shielding, ensure that a high-pressure side auxiliary cylinder electric field intensity inside high is uniformly distributed,
HV Terminal high voltage electric field is effectively shielded, keeps a high-pressure side auxiliary cylinder internal field more uniform by force, to reach product office
The small purpose of portion's discharge capacity.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of mesohigh screening arrangement of the present invention；
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is the mounting structure schematic diagram of mesohigh screening arrangement of the present invention.
In figure：1 is upper becket；2 be metal stretching net；3 be lower becket；4 be hickey；5 be coil device body；6
For mold；7 be high-tension shielding apparatus；8 be high-pressure side auxiliary cylinder；9 be core model；10 be an inserts；11 be screw rod；12 be swivel nut；
13 be insulator；14 be fuse；15 be screw；16 be spring；17 be swivel nut bolt.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
As shown in Figure 1, a kind of voltage transformer with fuse high-tension shielding apparatus provided by the invention, including insulation
The top of body 13 and the coil device body 5 being sealed and placed in insulator 13, insulator 13 is equipped with high-pressure side auxiliary cylinder 8, high-pressure side auxiliary cylinder 8
It is inside equipped with the fuse 14 being connect with a HV Terminal, the end of high-pressure side auxiliary cylinder 8 is equipped with closeouts, by 14 envelope of fuse
It is placed in high-pressure side auxiliary cylinder 8, high-tension shielding apparatus 7 is equipped between fuse 14 and high-pressure side auxiliary cylinder 8.
Using the integral structure of poured with epoxy resin, the top of insulator 13 is equipped with for high-pressure side auxiliary cylinder 8 and insulator 13
Two or three high-pressure side auxiliary cylinders 8.
In one embodiment of the invention, closeouts include swivel nut 12 and swivel nut bolt 17, and swivel nut 12 is embedded in HV Terminal
The upper end of cylinder 8, swivel nut bolt 17 connect with swivel nut 12, fuse 14 are sealed and placed in high-pressure side auxiliary cylinder 8, the lower end of fuse 14
Equipped with spring 16.The upper end of spring 16 is connect with fuse 14, and lower end passes through screw and the inserts being set to above coil device body 5
10 connections.
As Figure 2-3, high-tension shielding apparatus 7 includes metal stretching net 2 and the upper gold for being set to 2 both ends of metal stretching net
Belong to ring 1 and lower becket 3.Lower becket 3 is equipped with hickey 4, and high-tension shielding apparatus 7 passes through hickey 4 and insulator
Inserts 10 connection at 13 tops.
Upper becket 1 and lower becket 3 are punch forming part, and hickey 4, upper becket 1 are squeezed out on lower becket 3
It is connected as one by way of rolling with lower becket 3 and the both ends of metal stretching net 2.
Upper becket 1 and lower becket 3 are iron, copper or aluminium sheet punch forming, and metal stretching net 2 is that iron, copper or aluminum are drawn
Stretch net.
Swivel nut 12 and high-tension shielding apparatus 7 pour into a mould one with high-pressure side auxiliary cylinder 8.
As shown in figure 4, upper mold screws tight core model 9 and spiral shell with swivel nut 12 after voltage transformer coil device body 5 fixes
Bar 11 passes through 7 cylindrical metal stretching nets of high-tension shielding apparatus, 2 center, is sealed in each high-pressure side auxiliary cylinder 8 and sets a high-tension shielding
Device 7, adjust distance molding cast formed one with insulator 13 and be sealed and placed in insulator 13 coil device body 5,
Swivel nut 12,7 integrated structure of high-tension shielding apparatus.Further, group loads onto spring 16, screw 15, fuse 14, spiral shell successively
Bolt 17 is covered to fasten.
In another embodiment of the present invention, closeouts are cable plug, do not need swivel nut 12, but are sealed by cable plug
The open end of stifled high-pressure side auxiliary cylinder 8, fuse 14 is sealed and placed in high-pressure side auxiliary cylinder 8.It is special fuse using this mode
Elbow headstock is matched with American elbow-type cable plug, so that once connection is more fastened, is convenient, fast, and play sealing high pressure
The effect of terminal is used for various American-type boxes and other switchgears.
This invention ensures that primary each band fuse high-pressure side auxiliary cylinder electric field intensity inside high is uniformly distributed, by a high-pressure side
High voltage electric field effectively shields in auxiliary cylinder, keeps a high-pressure side auxiliary cylinder internal field more uniform by force, to reach product partial discharge quantity
Small purpose.
In conclusion voltage transformer of the present invention with fuse high-tension shielding apparatus is produced in primary voltage mutual inductor
The complete technological innovation of manufacturing process is that the die-filling process before product casting mold increases high-tension shielding, by a sub-high pressure
Terminal fuse ensure that a high-pressure side auxiliary cylinder electric field intensity inside high is uniformly distributed, by a HV Terminal high pressure plus shielding
Electric field effectively shields, and keeps a high-pressure side auxiliary cylinder internal field more uniform by force, to reach the small purpose of product partial discharge quantity.
Voltage transformer of the present invention with fuse high-tension shielding apparatus is to follow mutual inductor production principle and related mark
The new structure of quasi- design, fully considers electromagnetic induction principle, and special height is utilized when voltage transformer makes with fuse
Shield effectiveness is pressed, further reaches that a high-pressure side auxiliary cylinder electric field intensity inside high is more uniform, and product partial discharge quantity is small, is made primary
Distribution is more uniform by force in high-pressure side auxiliary cylinder internal field, to achieve the purpose that product partial discharge quantity is small, so that it is guaranteed that product can
Safe operation provides advantageous guarantee for mutual inductor batch micro operations and quality control.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of voltage transformer with fuse high-tension shielding apparatus, which is characterized in that including insulator (13) and envelope
The top of the coil device body (5) being placed in insulator (13), the insulator (13) is equipped with high-pressure side auxiliary cylinder (8), the high pressure
The fuse (14) being connect with a HV Terminal is equipped in terminal cylinder (8), the end of the high-pressure side auxiliary cylinder (8) is equipped with envelope
Blocking piece is equipped with high-tension shielding apparatus (7) between the fuse (14) and the high-pressure side auxiliary cylinder (8).
2. the voltage transformer according to claim 1 with fuse high-tension shielding apparatus, which is characterized in that the height
Pressure screening arrangement (7) include metal stretching net (2) and the upper becket (1) for being set to metal stretching net (2) both ends and under
Becket (3).
3. the voltage transformer according to claim 2 with fuse high-tension shielding apparatus, which is characterized in that under described
Becket (3) is equipped with hickey (4), and the high-tension shielding apparatus (7) passes through hickey (4) and the insulator (13)
Inserts (10) at top connects.
4. the voltage transformer according to claim 2 with fuse high-tension shielding apparatus, which is characterized in that on described
Becket (1) and lower becket (3) are connect with the both ends of the metal stretching net (2) by way of rolling.
5. the voltage transformer according to claim 2 with fuse high-tension shielding apparatus, which is characterized in that on described
Becket (1) and lower becket (3) are punch forming part.
6. the voltage transformer according to claim 2 with fuse high-tension shielding apparatus, which is characterized in that on described
Becket (1) and lower becket (3) are iron, copper or aluminium sheet punch forming, and the metal stretching net (2) is that iron, copper or aluminum are drawn
Stretch net.
7. the voltage transformer according to claim 1 with fuse high-tension shielding apparatus, which is characterized in that described molten
The lower end of disconnected device (14) is equipped with spring (16).
8. the voltage transformer according to claim 1 with fuse high-tension shielding apparatus, which is characterized in that the envelope
Blocking piece includes swivel nut (12) and swivel nut bolt (17), and the swivel nut (12) is embedded in the upper end of the high-pressure side auxiliary cylinder (8), described
Swivel nut bolt (17) is connect with swivel nut (12), and the fuse (14) is sealed and placed in the high-pressure side auxiliary cylinder (8).
9. the voltage transformer according to claim 1 with fuse high-tension shielding apparatus, which is characterized in that the height
Pressure side auxiliary cylinder (8) and the insulator (13) use the integral structure of poured with epoxy resin.
10. the voltage transformer according to claim 1 with fuse high-tension shielding apparatus, which is characterized in that described
Closeouts are cable plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304309.8A CN108335893A (en) | 2018-04-08 | 2018-04-08 | A kind of voltage transformer with fuse high-tension shielding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304309.8A CN108335893A (en) | 2018-04-08 | 2018-04-08 | A kind of voltage transformer with fuse high-tension shielding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108335893A true CN108335893A (en) | 2018-07-27 |
Family
ID=62932779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810304309.8A Withdrawn CN108335893A (en) | 2018-04-08 | 2018-04-08 | A kind of voltage transformer with fuse high-tension shielding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108335893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755080A (en) * | 2019-03-01 | 2019-05-14 | 大连北方互感器集团有限公司 | A kind of voltage transformer secondary fuse protective device and preparation method thereof |
| CN111219403A (en) * | 2018-11-23 | 2020-06-02 | 大连北方互感器集团有限公司 | Fixing structure and method of threaded sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6492891B2 (en) * | 2000-06-14 | 2002-12-10 | Denso Corporation | Transformer device, high voltage generating apparatus having the same, and lighting system having them |
| CN204118027U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of high-tension fuse with function of shielding |
| CN204614646U (en) * | 2015-05-25 | 2015-09-02 | 日九（大连）互感器有限公司 | A kind of voltage transformer of outdoor belt fuse |
| CN205376278U (en) * | 2016-01-31 | 2016-07-06 | 大连金业电力设备有限公司 | Take compound inslation dry -type voltage transformer of fuse protection |
-
2018
- 2018-04-08 CN CN201810304309.8A patent/CN108335893A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6492891B2 (en) * | 2000-06-14 | 2002-12-10 | Denso Corporation | Transformer device, high voltage generating apparatus having the same, and lighting system having them |
| CN204118027U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of high-tension fuse with function of shielding |
| CN204614646U (en) * | 2015-05-25 | 2015-09-02 | 日九（大连）互感器有限公司 | A kind of voltage transformer of outdoor belt fuse |
| CN205376278U (en) * | 2016-01-31 | 2016-07-06 | 大连金业电力设备有限公司 | Take compound inslation dry -type voltage transformer of fuse protection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219403A (en) * | 2018-11-23 | 2020-06-02 | 大连北方互感器集团有限公司 | Fixing structure and method of threaded sleeve |
| CN109755080A (en) * | 2019-03-01 | 2019-05-14 | 大连北方互感器集团有限公司 | A kind of voltage transformer secondary fuse protective device and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180727 |
|
| WW01 | Invention patent application withdrawn after publication |