CN105810390A - Sleeve pipe end screen leading-out device of dry type transformer - Google Patents
Sleeve pipe end screen leading-out device of dry type transformer Download PDFInfo
- Publication number
- CN105810390A CN105810390A CN201610210603.3A CN201610210603A CN105810390A CN 105810390 A CN105810390 A CN 105810390A CN 201610210603 A CN201610210603 A CN 201610210603A CN 105810390 A CN105810390 A CN 105810390A
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- CN
- China
- Prior art keywords
- tap
- end shield
- type transformer
- dry
- sleeve pipe
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Classifications
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention belongs to the field of monitoring of an electronic device transformer sleeve pipe, in particular relates to a sleeve pipe end screen leading-out device of a dry type transformer. The sleeve pipe end screen leading-out device comprises an end screen connection plug, a grounding press spring, a tap installation seat and a tap grounding protection cap, wherein the tap grounding protection cap, the tap installation seat and a sleeve installation flange are sequentially connected, the end screen connection plug is arranged in a cavity jointly formed by the tap grounding protection cap, the tap installation seat and the sleeve pipe installation flange, the grounding press spring sleeves the end screen connection plug, one end of the grounding press spring is in contact with the end surface of an installation step of the end screen connection plug, and the other end of the grounding press spring is in contact with a reducing end surface of the tap installation seat. By the sleeve pipe end screen leading-out device, the technical defect brought by manual welding and an elastic sheet type leading-out device is avoided, an end screen is enabled to be reliably grounded, and the application safety of a product is improved.
Description
Technical field
The invention belongs to power equipment bushing shell for transformer monitoring field, particularly relate to a kind of dry-type transformer bottom shielding of bushing ejector.
Background technology
Along with developing rapidly of Chinese national economy, the demand of electric power is also risen increasingly, have also been obtained significant progress as the capital equipment transformator industry in defeated change system.Bushing shell for transformer is a kind of insulating element, as transformator key accessory, is that inside transformer high and low pressure is guided to the insulated sleeve outside fuel tank, plays the effect supporting wire and wire insulation against ground.Transformer Bushing Tap ejector is that condenser-type terminal insulate the extraction earth terminal of the last layer, ground connection during operation；When carrying out the test of sleeve pipe electric high-voltage, open end shield end, the capacitance of detection sleeve pipe and dielectric loss, carry out sleeve pipe insulating properties assessment.But, current most of Transformer Bushing Tap ejector signal is drawn and is adopted bonding wire craft, not only complex process, affects production efficiency；All multi-risk System hidden danger that artificial bonding wire introduces simultaneously easily causes welding quality instability, imperfect earth.Further, major part end shield ejector adopts spring-piece type ejector at present, although simple in construction, but in sleeve pipe is properly functioning, shell fragment is chronically at pressured state, once fatigue failure is even ruptured, it is easy to cause end shield imperfect earth.End shield imperfect earth, it is easy to causing shelf depreciation, severe patient causes bushing explosion, therefore, the reliable ground of end shield, is the necessary guarantee of power equipment even running.
Summary of the invention
The technical problem to be solved is to provide a kind of dry-type transformer bottom shielding of bushing ejector, with the technological deficiency avoiding human weld and spring-piece type ejector to bring, it is ensured that end shield reliable ground, improves the safety in utilization of product.
The present invention solves that above-mentioned technical problem be the technical scheme is that
Thering is provided a kind of dry-type transformer bottom shielding of bushing ejector, described dry-type transformer bottom shielding of bushing ejector is arranged on sleeve pipe mounting flange, and it is characterized in that and includes that end shield connects plug, ground connection holddown spring, tap mounting seat, tap ground connection are protected and emitted；
Described tap ground connection protect emit, tap mounting seat, sleeve pipe mounting flange are sequentially connected with, described end shield connect plug be positioned at tap ground connection protect emit, cavity that tap mounting seat and sleeve pipe mounting flange are collectively forming, described ground connection compresses spring housing and is contained on end shield connection plug, ground connection compresses spring one end and is connected the installation step end contact of plug, the other end and tap mounting seat reducing end contact with end shield.
Being provided with the first sealing ring between described tap mounting seat and sleeve pipe mounting flange, the middle part of described tap mounting seat is provided with the cannelure of accommodating described first sealing ring.
Described tap mounting seat and tap ground connection are protected and are provided with the second sealing ring between emitting, and the end of described tap mounting seat is provided with the cannelure of accommodating described second sealing ring.
Described end shield connect plug be positioned at tap mounting seat axle center place arrange run through abnormity anti-rotating hole.
Described end shield connects plug upper end and arranges an outer arcuately lantern body spring leaf.
Described end shield connects plug and adopts Shooting Technique to arrange one layer of engineering plastics insulating barrier at mandrel outer layer.
Described end shield connects plug axial direction and is provided with reticle.
Described end shield connects the mandrel of plug and adopts T2 red copper material.
Described end shield connects plug and adopts Shooting Technique to arrange one layer of engineering plastics insulating barrier at mandrel outer layer.
Described first sealing ring, the second sealing ring material adopt silicone rubber or fluorubber.
The technological merit of the present invention is embodied in:
1, end shield ejector signal is drawn and is adopted spring passive compression type scheme, it is ensured that end shield connects the reliable contacts of plug and end shield.Not only technique is simple, has positive effect to improving production detection efficiency；Decrease all multi-risk System hidden danger that anthropic factor brings simultaneously, improve the Earthing Reliability of end shield ejector；
2, tap ground connection is protected to emit and is connected plug with end shield and is ensureing while end contact, increases outside passive exposure formula arcuately lantern body spring leaf, the reliable contacts of dual both guarantees, improves the Earthing Reliability of end shield ejector；
3, compared to traditional end shield ejector, part of the present invention is simplified, and simple in construction is easy to use, and reliability is high.
Accompanying drawing explanation
Fig. 1 is present configuration generalized section；
Fig. 2 is patent structure explosive view of the present invention；
Fig. 3 is the section of structure that end shield connects plug；
Fig. 4 is the top view that end shield connects plug；
In figure, 1-end shield, 2-end shield connect plug, 3-sleeve pipe mounting flange, 4-ground connection holddown spring, 5-the first sealing ring, 6-tap mounting seat, 7-the second sealing ring, 8-tap ground connection protect emit, outside 9-reticle, 10-arcuately lantern body spring leaf, 11-insulating barrier.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the dry-type transformer bottom shielding of bushing ejector of the present invention, protects emit 8 including end shield 1, end shield connection plug 2, sleeve pipe mounting flange 3, ground connection holddown spring the 4, first sealing ring 5, tap mounting seat the 6, second sealing ring 7, tap ground connection.
The end shield 1 of the present invention and sleeve pipe mounting flange 3 insulate interlayer, next via coaxial with the end shield installation internal thread hole that sleeve pipe mounting flange 3 is arranged of pre-subdrilling, this hole internal diameter connects plug 2 lower end external diameter slightly larger than end shield, under the premise ensureing assembling operability, improves device shock resistance as far as possible.Ground connection holddown spring 4 one end is connected the installation step end face close contact of plug 2, one end and the close contact of tap mounting seat 6 reducing end face with end shield.End shield connect plug 2 near installation step place be one section with ground connection holddown spring 4 internal diameter cylinder closely, to ensure that ground connection holddown spring 4, end shield connect the axiality of plug 2 and tap mounting seat 6, improve and assemble operability.End shield connects plug 2 bottom and end shield 1 reliable contacts, and end shield connection plug 2 upper end is protected emit 8 reliable contacts through special-shaped anti-rotating hole and the tap ground connection at tap mounting seat 6 axle center place.End shield connects plug 2 and protects with tap ground connection and emit 8 contact position places, increases outside passive exposure formula arcuately lantern body spring leaf, the reliable contacts of dual both guarantees, improves the Earthing Reliability of end shield ejector.The end shield that tap mounting seat 6 and sleeve pipe mounting flange 3 are arranged is installed internal thread hole and is fastenedly connected；Meanwhile, tap mounting seat 6 top is provided with external screw thread, protects with tap ground connection and emits the internal thread hole of 8 and coaxially engage.Tap mounting seat 6 and axially arranged first sealing ring 5 of sleeve pipe mounting flange 3 contact surface, tap mounting seat 6 is protected with head ground connection and is emitted 8 and contact end face and arrange the second sealing ring 7, thus improving the sealing of end shield ejector, preventing end shield ejector from working due to long-term outdoor, end shield ejector internal structure corrosion failure and electric property that the intrusion of wet gas or other erosions causes decline.
In installation process, first the first sealing ring 5 is placed in the cannelure of tap mounting seat 6 lower end；Then ground connection holddown spring 4 is connected plug 2 upper end through end shield and be placed on the installation step end of end shield connection plug 2；Then end shield is connected plug 2 upper end and penetrates in abnormity anti-rotating hole from tap mounting seat 6 bottom circular endoporus until ground connection holddown spring 4 and tap mounting seat 6 reducing end contact；Then tap mounting seat 6 screws in the end shield that sleeve pipe mounting flange 3 arranges in internal thread hole until tap mounting seat 6 lower surface and sleeve pipe mounting flange 3 end contact are installed (whether this step needs to observe end shield and be connected the reticle at plug 2 axial direction place and occur in and design tram after completing, as position is overproof, there is the risk of loose contact)；Then the second sealing ring 7 is placed in the cannelure of tap mounting seat 6 upper end；Finally screw in tap ground connection to protect and emit 8 to tap mounting seat 6 threaded upper ends place, until tap ground connection is protected and emitted 8 lower surfaces and contact with tap mounting seat 6 upper surface.
Claims (10)
1. a dry-type transformer bottom shielding of bushing ejector, described dry-type transformer bottom shielding of bushing ejector is arranged on sleeve pipe mounting flange, it is characterised in that: include that end shield connects plug, ground connection holddown spring, tap mounting seat, tap ground connection are protected and emitted；
Described tap ground connection protect emit, tap mounting seat, sleeve pipe mounting flange are sequentially connected with, described end shield connect plug be positioned at tap ground connection protect emit, cavity that tap mounting seat and sleeve pipe mounting flange are collectively forming, described ground connection compresses spring housing and is contained on end shield connection plug, ground connection compresses spring one end and is connected the installation step end contact of plug, the other end and tap mounting seat reducing end contact with end shield.
2. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterized in that: be provided with the first sealing ring between described tap mounting seat and sleeve pipe mounting flange, the middle part of described tap mounting seat is provided with the cannelure of accommodating described first sealing ring.
3. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterized in that: described tap mounting seat and tap ground connection are protected and is provided with the second sealing ring between emitting, the end of described tap mounting seat is provided with the cannelure of accommodating described second sealing ring.
4. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: what described end shield connected that plug is positioned at that tap mounting seat axle center place arranges runs through abnormity anti-rotating hole.
5. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: described end shield connects plug upper end and arranges an outer arcuately lantern body spring leaf.
6. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: described end shield connects plug and adopts Shooting Technique to arrange one layer of engineering plastics insulating barrier at mandrel outer layer.
7. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: described end shield connects plug axial direction and is provided with reticle.
8. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: described end shield connects the mandrel of plug and adopts T2 red copper material.
9. a kind of dry-type transformer bottom shielding of bushing ejector according to claim 1, it is characterised in that: described end shield connects plug and adopts Shooting Technique to arrange one layer of engineering plastics insulating barrier at mandrel outer layer.
10. a kind of dry-type transformer bottom shielding of bushing ejector according to Claims 2 or 3, it is characterised in that: described first sealing ring, the second sealing ring material adopt silicone 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 true CN105810390A (en) | 2016-07-27 |
| CN105810390B CN105810390B (en) | 2018-06-12 |
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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 |
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| CN (1) | CN105810390B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706972A (en) * | 2017-01-20 | 2017-05-24 | 志峰（北京）环境科技集团有限公司 | Bushing end screen signal adapter used for sewage treatment |
| CN107831410A (en) * | 2017-09-26 | 2018-03-23 | 杭州西湖电子研究所 | A kind of capacitive bottom shielding of bushing signal supervisory instrument |
| 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 |
| US11270817B2 (en) | 2018-03-22 | 2022-03-08 | Hitachi Energy Switzerland Ag | Bushing with a tap assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716813A (en) * | 1970-11-28 | 1973-02-13 | P Hillyard | 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 | End screen grounding device for oil type sleeve |
| 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
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716813A (en) * | 1970-11-28 | 1973-02-13 | P Hillyard | 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 | End screen grounding device for oil type sleeve |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706972A (en) * | 2017-01-20 | 2017-05-24 | 志峰（北京）环境科技集团有限公司 | Bushing end screen signal adapter used for sewage treatment |
| 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 |
| CN107831410A (en) * | 2017-09-26 | 2018-03-23 | 杭州西湖电子研究所 | A kind of capacitive bottom shielding of bushing signal supervisory instrument |
| US11270817B2 (en) | 2018-03-22 | 2022-03-08 | Hitachi Energy Switzerland Ag | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105810390B (en) | 2018-06-12 |
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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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Granted publication date: 20180612 Termination date: 20200406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |