CN109841382A - A kind of bushing shell for transformer head assembly and bushing shell for transformer - Google Patents
A kind of bushing shell for transformer head assembly and bushing shell for transformer Download PDFInfo
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- CN109841382A CN109841382A CN201910153233.8A CN201910153233A CN109841382A CN 109841382 A CN109841382 A CN 109841382A CN 201910153233 A CN201910153233 A CN 201910153233A CN 109841382 A CN109841382 A CN 109841382A
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- Prior art keywords
- hole
- contact tube
- lid
- head assembly
- connecting part
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- 239000007769 metal material Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000007667 floating Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- -1 for example Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
This application discloses a kind of bushing shell for transformer head assembly and bushings shell for transformer, the head assembly includes: conservator, including lid, the lid includes opposite outer surface and inner surface, the lid is provided with first through hole and the second through-hole, the first through hole runs through the outer surface and the inner surface, and second through-hole runs through the hole wall of the outer surface and the first through hole；One end of contact tube, the contact tube is located in the first through hole；Conducting connecting part is located in second through-hole, and one end of the conducting connecting part is abutted with the contact tube in the first through hole, so that the lid is electrically connected with the contact tube.By the above-mentioned means, the application can make contact tube and lid keep equipotential.
Description
Technical field
This application involves transformer technology fields, more particularly to a kind of bushing shell for transformer head assembly and transformer set
Pipe.
Background technique
Bushing shell for transformer is the external primary insulation device of transformer tank, is mainly used for drawing in the electric current of transformer winding
Or introduce, play the role of insulation and the extraction of fixed transformer winding or lead-in.
Present inventor has found that bushing shell for transformer head assembly generally comprises conduction at present in chronic study procedure
Pipe and lid, contact tube and lid are realized by the tolerance fit at axial seal to be connected, and it is unreliable to connect between the two, is easy
There is poor contact, cause to generate voltage difference between contact tube and lid, and then it is abnormal to generate shelf depreciation, dielectric loss and capacitance
The problems such as.
Summary of the invention
The purpose of the application is to provide a kind of bushing shell for transformer head assembly and bushing shell for transformer, can make contact tube and lid
Body keeps equipotential.
In order to achieve the above objectives, the technical solution that the application uses is: a kind of bushing shell for transformer head assembly is provided,
The head assembly includes: conservator, including lid, and the lid includes opposite outer surface and inner surface, the lid setting
There are first through hole and the second through-hole, the first through hole runs through the outer surface and the inner surface, and second through-hole runs through
The hole wall of the outer surface and the first through hole；One end of contact tube, the contact tube is located in the first through hole；It is conductive
Connector is located in second through-hole, and one end of the conducting connecting part is supported with the contact tube in the first through hole
It connects, so that the lid is electrically connected with the contact tube.
Wherein, the conducting connecting part includes screw, and the screw is provided with external screw thread, the second through-hole wall setting
Have and the matched internal screw thread of the external screw thread.
It wherein, further include conductive resilient element, the conductive resilient element both ends abut the conducting connecting part respectively, described lead
Fulgurite.
Wherein, diameter of the screw adjacent to described contact tube one end is less than the diameter far from described contact tube one end, with
Ladder is formed in the screw outer wall；The conductive resilient element includes spring, and one end of the spring abuts the contact tube, institute
The other end for stating spring is socketed on the screw adjacent to one end of the contact tube, and is connected to the ladder of the screw
On.
Wherein, the lid, the contact tube, the conducting connecting part, the conductive resilient element are formed by metal material.
Wherein, the lid forms the bulge loop axially away from the lid at the first through hole edge；Described second is logical
Hole is through the outer wall of the bulge loop and the inner wall of the bulge loop.
Wherein, the number of second through-hole is multiple, is set to the company of the bulge loop or the bulge loop and the lid
Meet place.
Wherein, second through-hole and the axis angle of the first through hole are between 0~180 degree.
Wherein, the contact tube is hollow structure, the head assembly further include: current-carrying bar is inserted in the contact tube
Interior, the current-carrying bar is arranged in the first through hole, and the current-carrying bar is not contacted with the conductive inside pipe wall；Positioning pin, it is horizontal
The current-carrying bar is worn, and the both ends of the positioning pin and the bulge loop position are relatively fixed.
In order to achieve the above objectives, the another technical solution that the application uses is: providing a kind of bushing shell for transformer, the change
Depressor casing includes head assembly described in any of the above-described embodiment.
It is in contrast to the prior art, transformer head assembly provided herein includes lid, contact tube and leads
Electrical connector, wherein lid includes opposite outer surface and inner surface, and lid is provided with first through hole and the second through-hole, and first
Through-hole runs through outer surface and inner surface, and the second through-hole runs through the hole wall of outer surface and first through hole；One end of contact tube is located at the
In one through-hole；Conducting connecting part is located in the second through-hole, and one end of conducting connecting part is abutted with the contact tube in first through hole, with
So that lid is electrically connected with contact tube.The beneficial effect of the application is: due to the effect of conducting connecting part, even if contact tube and lid
Connection at body axial seal is in the state of poor contact, and conducting connecting part can also make lid and contact tube equipotential, in turn
It prevents from leading to problems such as shelf depreciation, dielectric loss and capacitance abnormal since contact tube generates floating potential.
In addition, further including conductive resilient element in bushing shell for transformer head assembly provided herein, both ends abut respectively
Conducting connecting part, contact tube；In use, bushing shell for transformer internal temperature can change, and contact tube can generate heat expansion
The phenomenon that shrinkage, on the one hand, conductive resilient element can reduce contact force of the contact tube in heat expansion between conducting connecting part, from
And reduce the damage to contact tube, lid, conducting connecting part；On the other hand, conductive resilient element can be in contact tube in shrinkage
In the case where caused and conducting connecting part poor contact, lid is made to keep being electrically connected with contact tube, to realize the electricity such as the two
Position, and then prevent from leading to problems such as shelf depreciation, dielectric loss and capacitance abnormal since contact tube generates floating potential.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of the application bushing shell for transformer head assembly；
Fig. 2 is the structural schematic diagram of another embodiment of the application bushing shell for transformer head assembly；
Fig. 3 is the structural schematic diagram of one embodiment of bulge loop in Fig. 1；
Fig. 4 is the structural schematic diagram of one embodiment of the application bushing shell for transformer.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of one embodiment of the application bushing shell for transformer head assembly, the head
Component 20 includes conservator 10, contact tube 12, conducting connecting part 14.
Wherein, conservator 10, including lid 100, lid 100 include opposite outer surface 1000 and inner surface 1002, lid
100 are provided with first through hole 1004 and the second through-hole 1006, and first through hole 1004 runs through outer surface 1000 and inner surface 1002, the
Two through-holes 1006 run through the hole wall of outer surface 1000 and first through hole 1004；In the present embodiment, lid 100 is conductive
Can, material can be metal, for example, iron, aluminium, stainless steel etc..Conservator 10 further includes cabinet body 102, and cabinet body 102 is hollow knot
Structure, lid 100 are located at the side opening of cabinet body 102, and the outer surface 1000 of above-mentioned lid 100 is defined as not covered by cabinet body 102
The all surface of lid, the inner surface 1002 of lid 100 are defined as the side surface covered by cabinet body 102.For example, it is assumed that lid
100 when being cuboid, and the outer surface 1000 of lid 100 includes upper surface, left side, right side, leading flank and trailing flank, lid
100 inner surface 1002 includes lower surface, and first through hole 1004 runs through the upper and lower surfaces of lid 100, and can be located at
The center position of lid 100, the second through-hole 1006 can be through to first from left side, right side, leading flank or trailing flank
The inner wall of through-hole 1004.
One end 120 of contact tube 12 is located in the first through hole 1004 of lid 100；In the present embodiment, contact tube 12
Material is metal, for example, aluminium etc..
Conducting connecting part 14 is located in the second through-hole 1006 of lid 100, and one end 140 of conducting connecting part 14 and first leads to
Contact tube 12 in hole 1004 abuts, so that lid 100 is electrically connected with contact tube 12.In the present embodiment, conducting connecting part
14 material is metal, for example, iron, aluminium, stainless steel etc..Due to the effect of conducting connecting part 14, even if contact tube 12 and lid
Connection at 100 axial seals is in the state of poor contact, and conducting connecting part 14 can also make the electricity of lid 100 Yu contact tube 12
Position it is identical, and then prevent because contact tube 12 generate floating potential due to generate shelf depreciation, dielectric loss and capacitance are abnormal phenomena such as.
In one embodiment, first through hole 1004 and the second through-hole 1006 can be cylindrical hole, prismatic logical
Hole etc.；Second through-hole 1006 and the axis angle of first through hole 1004 are between 0~180 degree, for example, 45 degree, 90 degree, 135 degree
Deng corresponding contact tube being arranged according to the corresponding axis angle of Position Design of contact tube 12, or according to axis angle
12 position, as long as guaranteeing that the conducting connecting part 14 being located in the second through-hole 1006 is abutted with contact tube 12.For example, second
Through-hole 1006 is formed with opening on the hole wall of first through hole 1004, when one end of contact tube 12 120 does not cover the opening all
When, as shown in fig. 1, the axis angle of the second through-hole 1006 and first through hole 1004 be obtuse angle (i.e. in Fig. 1 two dotted lines at
Angle), the upper right side in the oblique Fig. 1 of the second through-hole 1006.In another example one end 120a as contact tube 12a covers the opening
When, the axis angle of the second through-hole 1006a and first through hole 1004a can be right angle or acute angle or obtuse angle, such as Fig. 2 institute
Show, Fig. 2 is the structural schematic diagram of another embodiment of the application bushing shell for transformer head assembly.
In another embodiment, referring to Fig. 1, conducting connecting part 14 includes screw, and screw is provided with outer spiral shell
Line (not shown), 1006 inner wall of the second through-hole are provided with and the matched internal screw thread (not shown) of external screw thread.By external screw thread with it is interior
The cooperation of screw thread, so that conducting connecting part 14 and the position of lid 100 are relatively fixed；In the present embodiment, screw can be
Soket head cap screw, in order to simply and quickly be installed in the second through-hole 1006.Certainly, in other embodiments, it is conductively connected
Part 14 can also be conducting rod, and the internal diameter of outer diameter and the second through-hole 1006 matches, and between the two by interference fit, and then make
The position for obtaining conducting rod and lid 100 is relatively fixed；Certainly, also it can pass through conducting resinl in the periphery coating conducting resinl of conducting rod
Effect further fix conducting rod and the position of lid 100.
In yet another embodiment, referring to Fig. 1, head assembly 20 provided herein further includes conductive bullet
Property part 16,16 both ends of conductive resilient element abut conducting connecting part 14 and contact tube 12 respectively, and conductive resilient element 16 can be by metal
Material is formed, for example, iron, aluminium, stainless steel etc..In use, bushing shell for transformer internal temperature can change, contact tube
12 can generate the phenomenon that expanding with heat and contract with cold, on the one hand, conductive resilient element 16 can reduce contact tube 12 in heat expansion and be conductively connected
Contact force between part 14, to reduce the damage to contact tube 12, lid 100, conducting connecting part 14；On the other hand, conductive
Elastic component 16 can when contact tube 12 is in shrinkage it is caused with 14 poor contact of conducting connecting part in the case where, make lid 100
It is electrically connected with the holding of contact tube 12, to realize the two equipotential, and then prevents from leading since contact tube 12 generates floating potential
Cause shelf depreciation, the problems such as dielectric loss and capacitance are abnormal.
In a specific application scenarios, as shown in Figure 1, conductive resilient element 16 includes spring, screw is adjacent to contact tube
The diameter of 12 one end is less than the diameter far from 12 one end of contact tube, to form ladder in screw outer wall；One end of spring abuts and leads
Fulgurite 12, the other end of spring is socketed on screw adjacent to one end of contact tube 12, and is connected on the ladder of screw.Certainly, exist
In other application scenarios, conductive resilient element 16 can also be other, such as electric silica gel etc..And when conductive resilient element 16 is conductive silicon
When glue, conducting connecting part 14 can also be electric silica gel, i.e., conductive resilient element 16 is integral with conducting connecting part 14 at this time.
In another embodiment, please continue to refer to Fig. 1, lid 100 forms axial remote at 1004 edge of first through hole
Bulge loop 104 from lid 100, the bulge loop 104 and lid 100 form the structure for being similar to ladder, the bulge loop 104 and lid 100
It can be integrally formed.Second through-hole 1006 is through the outer wall of bulge loop 104 and the inner wall of bulge loop 104.Second through-hole 1006 in Fig. 1
Number is one, and certainly, the number of the second through-hole 1006 can also be multiple (for example, two, three, four etc.).Multiple second
Through-hole 1006 is set to the junction of bulge loop 104 or bulge loop 104 and lid 100, as shown in figure 3, Fig. 3 is bulge loop 104 in Fig. 1
The schematic top plan view of one embodiment, specially four the second through-holes 1006 are uniformly arranged on bulge loop 104.
In yet another embodiment, please continue to refer to Fig. 1, contact tube 12 provided herein is hollow structure, this
Head assembly 20 provided by applying further includes current-carrying bar 18 and positioning pin 11；Wherein, current-carrying bar 18 is inserted in contact tube 12
(i.e. one end of current-carrying bar 18 is located in contact tube 12, and the other end of current-carrying bar 18 is located at outside contact tube 12), current-carrying bar 18 is worn
In first through hole 1004, (i.e. current-carrying bar 18 passes through first through hole 1004, and the both ends of current-carrying bar 18 are respectively positioned on first through hole 1004
Outside), current-carrying bar 18 is not contacted with 12 inner wall of contact tube；One end that current-carrying bar 18 is located in contact tube 12 is provided with to current-carrying bar 18
Another concave end the first groove 180, the lead-out wire of the intracorporal transformer winding of transformer case is welded on first groove 180
Bottom；Positioning pin 11 crosses current-carrying bar 18, and the both ends of positioning pin 11 and the position of bulge loop 104 are relatively fixed；In this implementation
In example, current-carrying bar 18 includes the first area 182 being located in same level with bulge loop 104, which, which is provided with, passes through
Through-hole (does not indicate), and through hole is axially vertical with current-carrying bar 18, and positioning pin 11 is arranged in the through hole；Bulge loop 104 is corresponding
The position of the positioning pin 11 is provided with the second groove (not indicating), with the end of holding locating pin 11, and then by the current-carrying bar 18
Position fix.
In yet another embodiment, please continue to refer to Fig. 1, head assembly 20 provided herein further includes terminal plate
13, which is located in the first through hole 1004 of lid 100, and the terminal plate 13 is provided with accommodating cavity 130, for holding
Set the other end that current-carrying bar 18 is located at outside contact tube 12；The terminal plate 13 includes the extension 132 contacted with lid 100, is extended
Portion 132 can be fixed by screws on lid 100.It is provided with third groove 134 on 130 side wall of accommodating cavity of terminal plate 13,
For accommodating current-carrying spring in the third groove 134.Electric current in transformer winding is through current-carrying bar 18, current-carrying spring, terminal plate
It is flowed out after 13, current-carrying bar 18 and 13 equipotential of terminal plate.Since terminal plate 13 and lid 100 are fixed by screw, wiring
Plate 13 and 100 equipotential of lid.In addition, in the present embodiment, first through hole 1004 and the second through-hole are provided on lid 100
1006, the second through-hole 1006 is connected to first through hole 1004, and one end 120 of contact tube 12 is located in first through hole 1004, and second
Conducting connecting part 14 is provided in through-hole 1006, one end 140 of conducting connecting part 14 abuts contact tube 12, due to conducting connecting part
14 effect, therefore lid 100 and 12 equipotential of contact tube.Contact tube 12 in head assembly 20 i.e. provided herein,
Lid 100, current-carrying bar 18,13 equipotential of terminal plate, so can reduce entire head assembly 20 occur shelf depreciation, dielectric loss and
The probability for phenomena such as capacitance is abnormal.
Certainly, in other embodiments, head assembly 20 provided herein may also include other common structures, example
Such as, grading ring etc., the application does not illustrate this excessively.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of one embodiment of the application bushing shell for transformer, the bushing shell for transformer 40
Including head assembly 20, the specific structure of head assembly 20 can be found in any of the above-described embodiment, and details are not described herein.Certainly, should
Bushing shell for transformer 40 may also include other common structures, for example, rail unit 22 etc., the application does not illustrate this excessively.
To sum up, being in contrast to the prior art, transformer head assembly provided herein includes lid, leads
Fulgurite and conducting connecting part, wherein lid includes opposite outer surface and inner surface, and lid is provided with first through hole and second and leads to
Hole, first through hole run through outer surface and inner surface, and the second through-hole runs through the hole wall of outer surface and first through hole；One end of contact tube
In first through hole；Conducting connecting part is located in the second through-hole, the contact tube in one end and first through hole of conducting connecting part
It abuts, so that lid is electrically connected with contact tube.Due to the effect of conducting connecting part, even if at contact tube and lid axial seal
Connection be in the state of poor contact, conducting connecting part can also make lid identical as the current potential of contact tube, and then reduces and generate
Phenomena such as shelf depreciation, abnormal dielectric loss and capacitance；It can also reduce and locally be put caused by generating floating potential because of contact tube simultaneously
Electricity, phenomena such as dielectric loss and capacitance are abnormal.In addition, further including conductive bullet in bushing shell for transformer head assembly provided herein
Property part, both ends abut conducting connecting part, contact tube respectively；In use, bushing shell for transformer internal temperature can change,
Contact tube can generate the phenomenon that expanding with heat and contract with cold, on the one hand, conductive resilient element can reduce contact tube in heat expansion and be conductively connected
Contact force between part, to reduce the damage to contact tube, lid, conducting connecting part；On the other hand, conductive resilient element can be with
When contact tube is in shrinkage in the case where caused and conducting connecting part poor contact, lid is made to keep being electrically connected with contact tube,
The equipotential both to realize, and then prevent from leading to shelf depreciation, dielectric loss and capacitance since contact tube generates floating potential
The problems such as abnormal.
The above is only presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize the application
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of bushing shell for transformer head assembly, which is characterized in that the head assembly includes:
Conservator, including lid, the lid include opposite outer surface and inner surface, and the lid is provided with first through hole and
Two through-holes, the first through hole run through the outer surface and the inner surface, and second through-hole runs through the outer surface and institute
State the hole wall of first through hole；
One end of contact tube, the contact tube is located in the first through hole；
Conducting connecting part, be located at second through-hole in, one end of the conducting connecting part with it is described in the first through hole
Contact tube abuts, so that the lid is electrically connected with the contact tube.
2. head assembly according to claim 1, which is characterized in that
The conducting connecting part includes screw, and the screw is provided with external screw thread, second through-hole wall be provided with it is described
The matched internal screw thread of external screw thread.
3. head assembly according to claim 2, which is characterized in that it further include conductive resilient element, the conductive resilient element
Both ends abut the conducting connecting part, the contact tube respectively.
4. head assembly according to claim 3, which is characterized in that
Diameter of the screw adjacent to described contact tube one end is less than the diameter far from described contact tube one end, in the screw
Outer wall forms ladder；
The conductive resilient element includes spring, and one end of the spring abuts the contact tube, the other end socket of the spring
In the screw adjacent to one end of the contact tube, and it is connected on the ladder of the screw.
5. head assembly according to claim 3, which is characterized in that
The lid, the contact tube, the conducting connecting part, the conductive resilient element are formed by metal material.
6. head assembly according to claim 1, which is characterized in that
The lid forms the bulge loop axially away from the lid at the first through hole edge；
Second through-hole is through the outer wall of the bulge loop and the inner wall of the bulge loop.
7. head assembly according to claim 6, which is characterized in that
The number of second through-hole be it is multiple, be set to the junction of the bulge loop or the bulge loop and the lid.
8. head assembly according to claim 1, which is characterized in that
Second through-hole and the axis angle of the first through hole are between 0~180 degree.
9. head assembly according to claim 6, which is characterized in that the contact tube is hollow structure, the head group
Part further include:
Current-carrying bar is inserted in the contact tube, and the current-carrying bar is arranged in the first through hole, the current-carrying bar with it is described
Conductive inside pipe wall does not contact；
Positioning pin crosses the current-carrying bar, and the both ends of the positioning pin and the bulge loop position are relatively fixed.
10. a kind of bushing shell for transformer, which is characterized in that the bushing shell for transformer includes the described in any item heads of claim 1-9
Parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153233.8A CN109841382A (en) | 2019-02-28 | 2019-02-28 | A kind of bushing shell for transformer head assembly and bushing shell for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153233.8A CN109841382A (en) | 2019-02-28 | 2019-02-28 | A kind of bushing shell for transformer head assembly and bushing shell for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109841382A true CN109841382A (en) | 2019-06-04 |
Family
ID=66885101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910153233.8A Pending CN109841382A (en) | 2019-02-28 | 2019-02-28 | A kind of bushing shell for transformer head assembly and bushing shell for transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109841382A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297784Y (en) * | 1997-04-30 | 1998-11-18 | 沈阳变压器厂一分厂 | Cable-through oil filled paper condenser bushing |
| CN2585376Y (en) * | 2002-10-08 | 2003-11-05 | 新疆特变电工股份有限公司 | Sleeve with no suspension electric potential |
| CN201282024Y (en) * | 2008-08-12 | 2009-07-29 | 中国西电电气股份有限公司 | Oil immersion inversion type current transformer |
| CN201374231Y (en) * | 2009-03-23 | 2009-12-30 | 南京智达电气有限公司 | Oil-impregnated paper capacitive transformer bushing head structure |
| CN202134315U (en) * | 2011-06-03 | 2012-02-01 | 中国西电电气股份有限公司 | High-voltage sleeve with canted coil spring current-carrying structure |
| CN205882306U (en) * | 2016-07-19 | 2017-01-11 | 国网新疆电力公司电力科学研究院 | Electrical connection device for standard voltage transformer |
| JP2018160576A (en) * | 2017-03-23 | 2018-10-11 | 日本碍子株式会社 | Transformer gas bushing |
| CN209544073U (en) * | 2019-02-28 | 2019-10-25 | 江苏神马电力股份有限公司 | A kind of bushing shell for transformer head assembly and bushing shell for transformer |
-
2019
- 2019-02-28 CN CN201910153233.8A patent/CN109841382A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297784Y (en) * | 1997-04-30 | 1998-11-18 | 沈阳变压器厂一分厂 | Cable-through oil filled paper condenser bushing |
| CN2585376Y (en) * | 2002-10-08 | 2003-11-05 | 新疆特变电工股份有限公司 | Sleeve with no suspension electric potential |
| CN201282024Y (en) * | 2008-08-12 | 2009-07-29 | 中国西电电气股份有限公司 | Oil immersion inversion type current transformer |
| CN201374231Y (en) * | 2009-03-23 | 2009-12-30 | 南京智达电气有限公司 | Oil-impregnated paper capacitive transformer bushing head structure |
| CN202134315U (en) * | 2011-06-03 | 2012-02-01 | 中国西电电气股份有限公司 | High-voltage sleeve with canted coil spring current-carrying structure |
| CN205882306U (en) * | 2016-07-19 | 2017-01-11 | 国网新疆电力公司电力科学研究院 | Electrical connection device for standard voltage transformer |
| JP2018160576A (en) * | 2017-03-23 | 2018-10-11 | 日本碍子株式会社 | Transformer gas bushing |
| CN209544073U (en) * | 2019-02-28 | 2019-10-25 | 江苏神马电力股份有限公司 | A kind of bushing shell for transformer head assembly and bushing shell for transformer |
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