CN206848343U - A kind of voltage transformer of band support - Google Patents
A kind of voltage transformer of band support Download PDFInfo
- Publication number
- CN206848343U CN206848343U CN201720788569.8U CN201720788569U CN206848343U CN 206848343 U CN206848343 U CN 206848343U CN 201720788569 U CN201720788569 U CN 201720788569U CN 206848343 U CN206848343 U CN 206848343U
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- flange
- coaxial
- voltage transformer
- division module
- band support
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Abstract
The utility model discloses a kind of voltage transformer of band support, including top flange, composite insulator and the base set gradually, and the division module being arranged in composite insulator.Voltage transformer of the utility model with supporting construction, coaxially fixed by coaxial flange, insulating flange, with the sleeve of composite insulator, three's is co-axially mounted and using ensureing that division module and composite insulator are coaxial and support reliably, high mechanical strength after screw fastening；Division module top flange is electrically coupled with the top flange of voltage transformer by conducting rod, spring touch finger and touch base；Shielding cylinder is arranged on coaxial flange, with coaxial flange coaxial, can be improved the Electric Field Distribution at the top of product, be reduced electric-field intensity, increase insulation margin.
Description
Technical field
The utility model belongs to voltage measuring apparatus field, is related to 500kV to 1100kV voltage transformer, is specially
A kind of voltage transformer of band support.
Background technology
D.C. high voltage transmission quickly develops in China to high voltage, Large Copacity direction, and grid company is to DC voltage measurement
The voltage class of device proposes higher requirement.DC voltage transformer rated voltage increases, and its product becomes overlength, in product
The axiality control of the resistance capacitance divider block length increase in portion, weight increase, product division module and sleeve pipe requires more
Add strict., can be high because of interiors of products upper end temperature outside the composite insulator of product during rainy weather, lower temperature is low and top
Dry is fast, and bottom is done slow, and exterior insulator voltage's distribiuting is uneven, and electric-field intensity becomes big at the top of product, causes product upper end
Easily occur radially discharging, have a strong impact on the safe operation in power station.
Utility model content
For problems of the prior art, the utility model provides a kind of voltage transformer of band support, structure letter
Single, reasonable in design, division module is fixed reliably, and Temperature Distribution is more uniform, safe for operation.
The utility model is to be achieved through the following technical solutions：
A kind of voltage transformer of band support, including top flange, composite insulator and the base set gradually, Yi Jishe
Put the division module in composite insulator；
Described division module bottom is fixed on base, and top sets division module top flange；Division module top
Be coaxially arranged with coaxial flange at the top of flange, coaxial flange outer rim is arranged with coaxial insulating flange, the outer rim of insulating flange with
Internal surface of sleeve pipe inside composite insulator is pressed into contact with；
Described top flange is electrically coupled by conducting rod with division module.
Preferably, the outer rim of described insulating flange is in be provided with through hole in tooth form setting and/or flange body.
Preferably, the bottom of described top flange is provided with touch base, and spring touch finger is provided with touch base；Described conduction
Bar bottom is fixed on coaxial flange, and top is plugged in touch base by spring touch finger.
Preferably, described coaxial flange upper end is coaxially fixed with shielding cylinder, between the top of shielding cylinder and top flange are in
Gap is set, and the top outer rim of shielding cylinder is set to external expansion in crimping.
Further, insulating flange is fixedly connected with division module top flange using insulated screw；Coaxial flange and point
Die block top flange is fixed using metallic screw installation；Metallic screw is located inside shielding cylinder.
Preferably, insulating flange is annular flange, and external diameter is identical with the internal diameter of sleeve pipe, the external diameter phase of internal diameter and coaxial flange
Together.
Preferably, terminal plate is provided with the top of described top flange, the bottom of base is provided with support and terminal box,
Terminal box electrically connects with base.
Preferably, division module is fixed on base by the electrical connection of division module flange in the bottom.
Compared with prior art, the utility model has technique effect beneficial below：
A kind of voltage transformer with supporting construction of the utility model, passes through coaxial flange, insulating flange and compound inslation
The sleeve of son is coaxially fixed, three be co-axially mounted and using ensure after screw fastening division module and composite insulator it is coaxial and
Support is reliable, high mechanical strength；The top flange of division module top flange and voltage transformer passes through conducting rod, spring touch finger
Electrically coupled with touch base；Shielding cylinder is arranged on coaxial flange, with coaxial flange coaxial, can improve the electric field at the top of product
Distribution, electric-field intensity is reduced, increase insulation margin.
Further, can be with sleeve pipe or independent by the through hole in insulating flange tooth form outer rim or flange body
Via through holes form interchange channel, and the heat inside dielectric and voltage transformer can be swapped by interchange channel, real
Existing upper part heat balanced and stably.
Further, shielding cylinder and coaxial flange coaxial, cover the metallic screw on coaxial flange, play shielding action；
Shielding cylinder top is set, and reduces the electric-field intensity on voltage transformer top.
Further, coaxial flange fixed on the inside of insulating flange, it is ensured that insulating flange, can be by power by after radial load
It is delivered on coaxial flange, improves integral rigidity；Insulating flange is fixedly connected with division module top flange using insulated screw,
Strengthen mechanical strength, improve electric-field intensity.
Brief description of the drawings
Fig. 1 is the structural representation of the voltage transformer described in the example of the utility model.
Fig. 2 is the front view of insulating flange described in the example of the utility model.
Fig. 3 is Fig. 2 A-A direction views.
In figure：1. top flange, 2. terminal plates, 3. touch bases, 4. spring touch fingers, 5. shielding cylinders, 6. conducting rods, 7. insulation spiral shells
Nail, 8. insulating flanges, 9. coaxial flanges, 10. division module top flanges, 11. sleeve pipes, 12. division modules, 13. division modules
Flange in the bottom, 14. bases, 15. supports, 16. terminal boxes.
Embodiment
The utility model is described in further detail with reference to specific embodiment, described is to the utility model
Explanation rather than restriction.
A kind of voltage transformer of band of the utility model support, it include division module top flange 10, insulating flange 8,
The coaxially top flange 1 of flange 9, conducting rod 6, touch base 3, spring touch finger 4, shielding cylinder 5 and voltage transformer, coaxial flange 9
External diameter is identical with the internal diameter of insulating flange 8, and the external diameter of insulating flange 8 is identical with the internal diameter of sleeve pipe 11 of composite insulator, after three's installation
It can ensure that division module 12 and composite insulator are coaxial；The top flange 1 of division module top flange 10 and voltage transformer is logical
Conducting rod 6, spring touch finger 4 and touch base 3 is crossed electrically to be coupled；Shielding cylinder 5 is arranged on coaxial flange 9, same with coaxial flange 9
Axle, the Electric Field Distribution at the top of product can be improved, reduce electric-field intensity, prevent voltage transformer because top electric field is uneven, electric field
Intensity is excessive and causes and radially discharges.
Wherein, the edge of insulating flange 8 as shown in Figure 2 can be arranged to tooth form, inside dielectric and voltage transformer
The hole that heat is formed by the outer of insulating flange 8 with sleeve pipe 11 swaps.
The length requirement of conducting rod 6 is inserted into touch base 3 when mounted, and is completely attached to spring touch finger 4, after insertion, leads
Electric pole 6 can not withstand touch base 3, retain certain distance.
Specifically, as shown in figure 1, tooth form insulating flange 8 and coaxial flange 9 are arranged on the top of division module 12, coaxial method
Orchid 9, insulating flange 8 and division module 12 are coaxial；Insulating flange 8 is made up of the solid insulating material of high mechanical strength, and insulate method
Orchid 8 is annular flange, and diametrically identical with the internal diameter of sleeve pipe 11 outside, outer is designed as dentation or flange is provided with hole, Ke Yijin
Row gas exchanges；The internal diameter of insulating flange 8 is identical with the external diameter of coaxial flange 9, it is ensured that insulating flange 8, can be with by after radial load
Transfer force on coaxial flange 9, improve integral rigidity；Insulating flange 8 and division module top flange 10 use insulated screw 7
It is fixedly connected, strengthens mechanical strength, improves electric-field intensity；Coaxial flange 9 and division module top flange 10 use metallic screw
Installation is fixed.
The top flange 1 of the top of division module 12 and voltage transformer is carried out using conducting rod 6, touch base 3 and spring touch finger 4
Electrical connection；Division module 12, coaxial flange 9, conducting rod 6, touch base 3, top flange 1 are coaxial when installing；Conducting rod 6 uses screw thread
It is coupled and is arranged on coaxial flange 9, the lower end of conducting rod 6 is external screw thread, and coaxial flange 9 is internal thread；Spring touch finger 4, which is arranged on, to be touched
On seat 3, conducting rod 6 and touch base 3 are electrically connected；The bore depth that touch base 3 inserts conducting rod 6 wants long enough, installs spring
The groove of fingertip 4 is following close to the endoporus of touch base 3, it is ensured that electrically connected with touch base 3 can for conducting rod 6 after voltage measuring apparatus installation
Lean on, and temperature raises after product operation, conducting rod 6 has certain distance with the endoporus bottom of touch base 3, it is impossible to dieback；Touch base 3 uses gold
Category screw is fixedly mounted on top flange 1；Shielding cylinder 5 is arranged on coaxial flange 9, coaxial with coaxial flange 9, is covered coaxial
Metallic screw on flange 9, plays shielding action；The external diameter of shielding cylinder 5 is suitably big, reduces the electric field on voltage transformer top
Intensity.
Above-described case study on implementation, the purpose of this utility model, technical scheme and beneficial effect are carried out further
Illustrate, should be understood that and the foregoing is only specific embodiment of the utility model, it is new to be not limited to this practicality
Type, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements done etc., it should be included in this
Within the protection domain of utility model.
Claims (8)
1. a kind of voltage transformer of band support, it is characterised in that including top flange (1), the composite insulator set gradually
With base (14), and the division module (12) being arranged in composite insulator；
Described division module (12) bottom is fixed on base (14), and top sets division module top flange (10)；Partial pressure
Coaxial flange (9) is coaxially arranged with the top of module top flange (10), coaxial flange (9) outer rim is arranged with coaxial insulating flange
(8), sleeve pipe (11) inwall inside the outer rim of insulating flange (8) and composite insulator is pressed into contact with；
Described top flange (1) is electrically coupled by conducting rod (6) with division module (12).
A kind of 2. voltage transformer of band support according to claim 1, it is characterised in that described insulating flange (8)
Outer rim in tooth form set and/or flange body on be provided with through hole.
A kind of 3. voltage transformer of band support according to claim 1, it is characterised in that described top flange (1)
Bottom be provided with touch base (3), is provided with spring touch finger (4) in touch base (3)；Described conducting rod (6) bottom is fixed on coaxially
On flange (9), top is plugged in touch base (3) by spring touch finger (4).
A kind of 4. voltage transformer of band support according to claim 1, it is characterised in that described coaxial flange (9)
Upper end is coaxially fixed with shielding cylinder (5), and top and the top flange (1) of shielding cylinder (5) are in gap setting, the top of shielding cylinder (5)
Outer rim is held to be set to external expansion in crimping.
5. the voltage transformer of a kind of band support according to claim 4, it is characterised in that insulating flange (8) and partial pressure
Module top flange (10) is fixedly connected using insulated screw (7)；Coaxial flange (9) and division module top flange (10) use
Metallic screw installation is fixed；It is internal that metallic screw is located at shielding cylinder (5).
6. the voltage transformer of a kind of band support according to claim 1, it is characterised in that insulating flange (8) is annular
The internal diameter of flange, external diameter and sleeve pipe (11) is identical, and internal diameter is identical with the external diameter of coaxial flange (9).
A kind of 7. voltage transformer of band support according to claim 1, it is characterised in that described top flange (1)
Top be provided with terminal plate (2), the bottom of base (14) is provided with support (15) and terminal box (16), terminal box (16) and bottom
Seat (14) electrical connection.
8. the voltage transformer of a kind of band support according to claim 1, it is characterised in that division module (12) is by dividing
Die block flange in the bottom (13) electrical connection is fixed on base (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788569.8U CN206848343U (en) | 2017-06-30 | 2017-06-30 | A kind of voltage transformer of band support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788569.8U CN206848343U (en) | 2017-06-30 | 2017-06-30 | A kind of voltage transformer of band support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848343U true CN206848343U (en) | 2018-01-05 |
Family
ID=60804217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720788569.8U Active CN206848343U (en) | 2017-06-30 | 2017-06-30 | A kind of voltage transformer of band support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545513A (en) * | 2018-12-27 | 2019-03-29 | 象山宏强电气制造有限公司 | A kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type |
-
2017
- 2017-06-30 CN CN201720788569.8U patent/CN206848343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545513A (en) * | 2018-12-27 | 2019-03-29 | 象山宏强电气制造有限公司 | A kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type |
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