CN105810390B - A kind of dry-type transformer bottom shielding of bushing ejector - Google Patents
A kind of dry-type transformer bottom shielding of bushing ejector Download PDFInfo
- Publication number
- CN105810390B CN105810390B CN201610210603.3A CN201610210603A CN105810390B CN 105810390 B CN105810390 B CN 105810390B CN 201610210603 A CN201610210603 A CN 201610210603A CN 105810390 B CN105810390 B CN 105810390B
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- CN
- China
- Prior art keywords
- tap
- shield
- mounting base
- dry
- end shield
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Insulators (AREA)
Abstract
The invention belongs to power equipment bushing shell for transformer monitoring field more particularly to a kind of dry-type transformer bottom shielding of bushing ejectors.It is emitted including end shield connection plug, earthing spring, tap mounting base, tap ground connection shield, the tap ground connection shield emits, tap mounting base, casing mounting flange are sequentially connected, the end shield connection plug is located at tap ground connection shield and emits, in the cavity that tap mounting base and casing mounting flange are collectively formed, the earthing spring pocket is in end shield connection plug, earthing spring one end is contacted with the installation step end face of end shield connection plug, and the other end is contacted with tap mounting base reducing end face.The invention avoids the technological deficiencies that human weld and spring-piece type ejector bring, and ensure end shield reliable ground, improve the safety in utilization of product.
Description
Technical field
The invention belongs to power equipment bushing shell for transformer monitoring fields more particularly to a kind of dry-type transformer bottom shielding of bushing to draw
Go out device.
Background technology
With the rapid development of Chinese national economy, the demand to electric power also rises increasingly, as the master in defeated change system
Equipment-transformer industry is wanted also to obtain significant progress.Bushing shell for transformer is a kind of insulating element, as transformer key
Accessory is that inside transformer high and low pressure lead is guided to insulating sleeve outside fuel tank, plays support conducting wire and conducting wire is exhausted over the ground
The effect of edge.Transformer Bushing Tap ejector is that condenser-type terminal insulate the extraction ground terminal of the last layer, and when operation connects
Ground；When carrying out the experiment of casing electric high-voltage, end shield end is opened, the capacitance and dielectric loss of casing is detected, carries out set pipe insulation
Performance Evaluation.However, current most of Transformer Bushing Tap ejector signal is drawn using bonding wire craft, not only technique
Complexity influences production efficiency；All multi-risk System hidden danger that artificial bonding wire introduces simultaneously be easy to cause welding quality unstable, and ground connection is not
It is good.Also, major part end shield ejector, although simple in structure, is normally transported using spring-piece type ejector in casing at present
In row, shrapnel is chronically at pressured state, once fatigue failure is even broken, be easy to cause end shield imperfect earth.End shield is grounded
It is bad, shelf depreciation is easily caused, severe patient causes bushing explosion, and therefore, the reliable ground of end shield is that power equipment is steadily transported
Capable necessary guarantee.
Invention content
The technical problems to be solved by the invention are to provide a kind of dry-type transformer bottom shielding of bushing ejector, to avoid people
The technological deficiency that work is welded and spring-piece type ejector is brought ensures end shield reliable ground, improves the safety in utilization of product.
The used to solve above-mentioned technical problem technical solution of the present invention is：
A kind of dry-type transformer bottom shielding of bushing ejector, the dry-type transformer bottom shielding of bushing ejector installation are provided
On casing mounting flange, it is characterized in that：Including end shield connection plug, earthing spring, tap mounting base, tap
Ground connection shield emits；
The tap ground connection shield emits, tap mounting base, casing mounting flange are sequentially connected, and the end shield connection plug is located at
Tap ground connection shield emits, in the cavity that tap mounting base and casing mounting flange are collectively formed, and the earthing spring pocket is mounted in
In end shield connection plug, earthing spring one end is contacted with the installation step end face of end shield connection plug, the other end and tap
Mounting base reducing end face contacts.
The first sealing ring, the middle part of the tap mounting base are provided between the tap mounting base and casing mounting flange
It is provided with the annular groove of accommodating first sealing ring.
The tap mounting base and tap ground connection shield are provided with the second sealing ring, the end of the tap mounting base between emitting
On be provided with the annular groove of accommodating second sealing ring.
The end shield connection plug be located at set at tap mounting base axle center in special-shaped anti-rotating hole.
Arcuately lantern body spring leaf outside end shield connection plug upper end setting one.
The end shield connection plug sets one layer of engineering plastics insulating layer using Shooting Technique in mandrel outer layer.
The end shield connection plug axial direction is provided with reticle.
The mandrel of the end shield connection plug uses T2 red copper materials.
The end shield connection plug sets one layer of engineering plastics insulating layer using Shooting Technique in mandrel outer layer.
First sealing ring, the second sealing ring material use silicon rubber or fluorubber.
The technological merit of the present invention is embodied in：
1st, end shield ejector signal is drawn using spring passive compression type scheme, ensures end shield connection plug and end shield
Reliable contacts.It is not only simple for process, play the role of to raising production detection efficiency positive；Reduce what human factor was brought simultaneously
All multi-risk System hidden danger improves the Earthing Reliability of end shield ejector；
2nd, tap ground connection shield is emitted with end shield connection plug while ensureing that end face contacts, and is increased outside passive exposure formula arcuately
The reliable contacts of both lantern body spring leafs, dual guarantee improve the Earthing Reliability of end shield ejector；
3rd, compared to traditional end shield ejector, part of the present invention is simplified, simple in structure, easy to use, and reliability is high.
Description of the drawings
Fig. 1 is structural profile illustration of the present invention；
Fig. 2 is patent structure explosive view of the present invention；
Fig. 3 is the cross-sectional view of the structure of end shield connection plug；
Fig. 4 is the vertical view of end shield connection plug；
In figure, 1- end shields, 2- end shields connection plug, 3- casings mounting flange, 4- earthings spring, 5- first are sealed
Circle, 6- taps mounting base, the second sealing rings of 7-, 8- taps ground connection shield emit, outside 9- reticles, 10- arcuately lantern body spring leaf,
11- insulating layers.
Specific embodiment
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, dry-type transformer bottom shielding of bushing ejector of the invention is inserted including end shield 1, end shield connection
First 2, casing mounting flange 3, earthing spring 4, the first sealing ring 5, tap mounting base 6, the second sealing ring 7, tap ground connection
Shield emits 8.
End shield 1 and the casing mounting flange 3 of the present invention insulate interlayer, and one is set with casing mounting flange 3 under pre- subdrilling
The coaxial via of end shield installation internal thread hole, the hole internal diameter are slightly larger than 2 lower end outer diameter of end shield connection plug, can be grasped ensureing to assemble
Under the premise of the property made, device shock resistance is improved as possible.4 one end of earthing spring and the installation step end of end shield connection plug 2
Face is in close contact, and one end is in close contact with 6 reducing end face of tap mounting base.End shield connection plug 2 is one at installation step
The section cylinder very close with 4 internal diameter of earthing spring, to ensure earthing spring 4, end shield connection plug 2 and tap
The concentricity of mounting base 6 improves assembling operability.2 lower end of end shield connection plug and 1 reliable contacts of end shield, end shield connection
2 upper end of plug passes through the special-shaped anti-rotating hole at 6 axle center of tap mounting base to emit 8 reliable contacts with tap ground connection shield.End shield connects
Plug 2 and tap ground connection shield are emitted at 8 face contact positions, increase outside passive exposure formula arcuately lantern body spring leaf, dual guarantee two
The reliable contacts of person improve the Earthing Reliability of end shield ejector.Tap mounting base 6 is set with casing mounting flange 3
End shield installation internal thread hole is fastenedly connected；Meanwhile 6 top of tap mounting base is provided with external screw thread, is emitted in 8 with tap ground connection shield
Threaded hole coaxially engages.Tap mounting base 6 axially sets the first sealing ring 5, tap mounting base with 3 contact surface of casing mounting flange
6 emit 8 contact faces with head ground connection shield sets the second sealing ring 7, so as to improve the leakproofness of end shield ejector, prevents end shield from drawing
Go out device since long-term outdoor works, end shield ejector internal structure caused by the intrusion of wet gas or other erosions is rotten
Erosion destroys and electric property declines.
In installation process, the first sealing ring 5 is placed in 6 lower end annular groove of tap mounting base first；Then by earth contact pressure
Tight spring 4 is placed on the installation step endface of end shield connection plug 2 across 2 upper end of end shield connection plug；Then by end shield
2 upper end of connection plug is penetrated in special-shaped anti-rotating hole from 6 bottom circular endoporus of tap mounting base up to earthing spring 4 is with taking out
The contact of 6 reducing end face of head mounting base；Then tap mounting base 6 is screwed in into the end shield that casing mounting flange 3 sets and internal thread is installed
In hole until 6 lower face of tap mounting base is contacted with 3 end face of casing mounting flange (needs observation end shield connection to insert after the completion of the step
Whether the reticle at first 2 axial direction appears in design correct position, and if position is overproof, there are the risks of loose contact)；So
The second sealing ring 7 is placed in 6 upper end annular groove of tap mounting base afterwards；It finally screws in tap ground connection shield and emits 8 to tap mounting base 6
At threaded upper ends, until tap ground connection shield emits 8 lower faces and is contacted with 6 upper surface of tap mounting base.
Claims (8)
1. a kind of dry-type transformer bottom shielding of bushing ejector, the dry-type transformer bottom shielding of bushing ejector is mounted on casing
On mounting flange, it is characterised in that：It is emitted including end shield connection plug, earthing spring, tap mounting base, tap ground connection shield；
The tap ground connection shield emits, tap mounting base, casing mounting flange are sequentially connected, and the end shield connection plug is located at tap
Ground connection shield emits, in the cavity that tap mounting base and casing mounting flange are collectively formed, and the earthing spring pocket is mounted in end shield
In connection plug, earthing spring one end is contacted with the installation step end face of end shield connection plug, and the other end is installed with tap
The contact of seat reducing end face；
The end shield connection plug be located at set at tap mounting base axle center in special-shaped anti-rotating hole；
Arcuately lantern body spring leaf outside end shield connection plug upper end setting one.
2. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that：The tap peace
The first sealing ring is provided between dress seat and casing mounting flange, accommodating described first is provided in the middle part of the tap mounting base
The annular groove of sealing ring.
3. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that：The tap peace
Dress seat and tap ground connection shield are provided with the second sealing ring between emitting, and accommodating described the is provided on the end of the tap mounting base
The annular groove of two sealing rings.
4. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that：The end shield connects
Plug sets one layer of engineering plastics insulating layer using Shooting Technique in mandrel outer layer.
5. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that：The end shield connects
Plug axial direction is provided with reticle.
6. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that：The end shield connects
The mandrel of plug uses T2 red copper materials.
7. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 2, it is characterised in that：Described first is close
The material of seal uses silicon rubber or fluorubber.
8. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 3, it is characterised in that：Described second is close
The material of seal uses silicon rubber or fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610210603.3A CN105810390B (en) | 2016-04-06 | 2016-04-06 | A kind of dry-type transformer bottom shielding of bushing ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610210603.3A CN105810390B (en) | 2016-04-06 | 2016-04-06 | A kind of dry-type transformer bottom shielding of bushing ejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105810390A CN105810390A (en) | 2016-07-27 |
| CN105810390B true CN105810390B (en) | 2018-06-12 |
Family
ID=56459721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610210603.3A Expired - Fee Related CN105810390B (en) | 2016-04-06 | 2016-04-06 | A kind of dry-type transformer bottom shielding of bushing ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105810390B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706972B (en) * | 2017-01-20 | 2019-01-18 | 志峰（北京）环境科技集团有限公司 | For the bottom shielding of bushing signal adapter in sewage treatment |
| CN107831410B (en) * | 2017-09-26 | 2023-05-30 | 杭州西湖电子研究所 | Capacitive sleeve end screen signal detection device |
| EP3544028B1 (en) | 2018-03-22 | 2022-01-05 | Hitachi Energy Switzerland AG | A bushing with a tap assembly |
| CN109817432A (en) * | 2019-04-01 | 2019-05-28 | 江苏神马电力股份有限公司 | End shield connector and bushing shell for transformer |
| CN110518312A (en) * | 2019-08-26 | 2019-11-29 | 广东通宇通讯股份有限公司 | Ceramic Dielectric Filter and its conducting fixing means with antenna coupling plate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1360993A (en) * | 1970-11-28 | 1974-07-24 | Lucas Industries Ltd | Ignition coils |
| CN201903555U (en) * | 2010-12-13 | 2011-07-20 | 江西省电力公司超高压分公司 | Auxiliary device for testing of transformer bushing tap |
| CN202305586U (en) * | 2011-10-31 | 2012-07-04 | 马鞍山市万缘电气有限责任公司 | Interface device for transformer casing pipe |
| CN203242476U (en) * | 2013-02-27 | 2013-10-16 | 宁夏电力公司固原供电局 | Transformer bushing |
| CN204614584U (en) * | 2015-05-15 | 2015-09-02 | 深圳供电局有限公司 | A kind of end shield earthing device for oily formula sleeve pipe |
| CN205609314U (en) * | 2016-04-06 | 2016-09-28 | 西安思坦电气技术有限公司 | Dry -type transformer sleeve pipe end screen extraction device |
-
2016
- 2016-04-06 CN CN201610210603.3A patent/CN105810390B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105810390A (en) | 2016-07-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170221 Address after: 710065 high tech Zone, Shaanxi, Xi'an science and Technology Park, No. 22, No. five, Tan Tan Industrial Park, building two, floor 3 Applicant after: XI'AN SITAN ENVIRONMENT TECHNOLOGY CO., LTD. Address before: 710065 Xi'an science and technology zone, Shaanxi high tech Road No. five, No. 22 Applicant before: XI'AN SITAN ELECTRIC TECHNOLOGY CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20200406 |