CN203232764U - Insulating bush and air insulated switchgear using same - Google Patents
Insulating bush and air insulated switchgear using same Download PDFInfo
- Publication number
- CN203232764U CN203232764U CN 201320229223 CN201320229223U CN203232764U CN 203232764 U CN203232764 U CN 203232764U CN 201320229223 CN201320229223 CN 201320229223 CN 201320229223 U CN201320229223 U CN 201320229223U CN 203232764 U CN203232764 U CN 203232764U
- Authority
- CN
- China
- Prior art keywords
- insulating sleeve
- metallic shield
- shield net
- utility
- model
- 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 - Lifetime
Links
Images
Landscapes
- Regulation Of General Use Transformers (AREA)
Abstract
The utility model provides an insulating bush (1) and an air insulated switchgear including the insulating bush. The insulating bush comprises a conducting rod (11), a cylindric metal shielding net (12) and an epoxy main body (13), wherein the metal shielding net (12) is sleeved around the conducting rod (11) and is casted into the epoxy main body (13) together with the conducting rod (11), one end of the metal shielding net (12) is connected with a ground terminal (123) to realize grounding of the whole metal shielding net (12), and two ends of the metal shielding net (12) are provided with arc roll rims (121 and 122).
Description
Technical field
The utility model belongs to the power product technical field, is specifically related to a kind of insulating sleeve that is applied on the air insulation switchgear, as the primary winding of low pressure ring current transformer.
Background technology
At present, employed current transformer all is the instrument transformer with high pressure resistant insulation ability on the conventional pressure-air insulated switching installation, because its structure will realize the requirement of High-Voltage Insulation, makes its cost very high.Under the main trend that product design strictness is at present controlled cost, just press for a kind of cheap and good-quality current transformer scheme and can be applied on the High-Voltage Insulation switchgear.
Existing, be applied to the low pressure ring current transformer on the low-pressure air insulated switching installation because itself structure does not need to possess the ability of High-Voltage Insulation, therefore ining contrast to high-tension current inductor just has very big cost advantage.But also can not be applied directly on the pressure-air insulated switching installation because of its ability that does not possess High-Voltage Insulation.
The utility model content
An aspect of the present utility model provides a kind of insulating sleeve, comprises contact rod, metallic shield net cylindraceous and epoxy main body; The metallic shield net and is cast in the epoxy main body with contact rod around contact rod.
According to most preferred embodiment of the present utility model, an end of metallic shield net is connected with earth terminal, is used for realization to the ground connection of whole metallic shield net.
According to most preferred embodiment of the present utility model, there is the circular arc crimping at the two ends of metallic shield net.
Another aspect of the present utility model provides a kind of air insulation switchgear, comprises as above any described insulating sleeve; Insulating sleeve passes from the low pressure ring current transformer, connects the primary circuit of air insulation switchgear.
Insulating sleeve of the present utility model has effectively solved the Insulation Problems that faces when the low pressure ring current transformer is applied on the High-Voltage Insulation switchgear, thereby has realized the application of low pressure ring current transformer on the pressure-air insulated switching installation.Make switchgear on the basis that requires that meets the specification, effectively reduced cost.
Description of drawings
Fig. 1 is the structural representation of insulating sleeve of the present utility model;
Fig. 2 is the structural representation of metallic shield net in the insulating sleeve of the present utility model;
Fig. 3 is the schematic diagram that insulating sleeve of the present utility model is used at the air insulation switchgear.
Embodiment
Below with reference to accompanying drawing, the specific descriptions of optional execution mode of the present utility model have been provided.
Figure 1 shows that the cutaway view of insulating sleeve 1 of the present utility model, its structure mainly is made up of the epoxy main body 13 of contact rod 11, metallic shield net 12 cylindraceous and sleeve pipe.Metallic shield net 12 be enclosed within contact rod 11 around, be cast in the epoxy main body 13 with contact rod 11.One end of metallic shield net 12 is connected with earth terminal 123, by the ground connection of these earth terminal 123 realizations to whole metallic shield net 12, thereby effectively shielded the high voltage on the low pressure ring current transformer 2, made low pressure ring current transformer 2 not carry high voltage.
Figure 2 shows that the structural representation of metallic shield net 12 in the insulating sleeve of the present utility model, the two ends of metallic shield net 12 have circular arc crimping 121 and 122, one ends to be connected with earth terminal 123.The circular arc crimping 121 at the cylinder-like structure of metallic shield net 12 and two ends and 122 is well even insulating sleeve 1 residing electric field, reduce insulating sleeve 1 inner and surperficial electric field strength effectively, thereby made insulating sleeve possess desired anti-insulating capacity and partial discharge performance.
Be illustrated in figure 3 as the schematic diagram that insulating sleeve 1 of the present utility model is used at the air insulation switchgear, insulating sleeve 1 passes from low pressure ring current transformer 2, connects the primary circuit 3 of switchgear.
Although disclose preferred embodiment of the present utility model and accompanying drawing for the purpose of illustration, the person skilled in the art in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and protection range of the present utility model is as the criterion with the scope that appending claims was defined.
Claims (4)
1. an insulating sleeve (1) comprises contact rod (11), metallic shield net cylindraceous (12) and epoxy main body (13); Metallic shield net (12) be enclosed within contact rod (11) around, and be cast in the epoxy main body (13) with contact rod (11).
2. insulating sleeve according to claim 1, it is characterized in that: an end of metallic shield net (12) is connected with earth terminal (123), is used for realizing the ground connection to whole metallic shield net (12).
3. insulating sleeve according to claim 1 and 2, it is characterized in that: there is circular arc crimping (121,122) at the two ends of metallic shield net (12).
4. an air insulation switchgear is characterized in that, comprises as any described insulating sleeve of claim 1-3 (1); Insulating sleeve (1) passes from low pressure ring current transformer (2), connects the primary circuit (3) of air insulation switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229223 CN203232764U (en) | 2013-04-28 | 2013-04-28 | Insulating bush and air insulated switchgear using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229223 CN203232764U (en) | 2013-04-28 | 2013-04-28 | Insulating bush and air insulated switchgear using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232764U true CN203232764U (en) | 2013-10-09 |
Family
ID=49288870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229223 Expired - Lifetime CN203232764U (en) | 2013-04-28 | 2013-04-28 | Insulating bush and air insulated switchgear using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232764U (en) |
-
2013
- 2013-04-28 CN CN 201320229223 patent/CN203232764U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202307490U (en) | Vertical coaxial capacitance structure pillar electronic voltage transformer | |
| CN201466610U (en) | Wall bushing with double-shield structure | |
| US20130021709A1 (en) | Conductor arrangement for reducing impact of very fast transients | |
| CN208093344U (en) | A kind of dc circuit breaker energy supply transformer | |
| CN105467187B (en) | A kind of stagewise voltage transformer | |
| CN203232764U (en) | Insulating bush and air insulated switchgear using same | |
| CN204989400U (en) | A integral type high -voltage testing transformer for insulating oily withstanding voltage tester | |
| CN201237973Y (en) | Sulfur hexafluoride current mutual inductor with small-diameter casing tube | |
| CN103022928B (en) | A kind of contact double shield structure | |
| CN202474544U (en) | Contact box capable of preventing corona discharge | |
| CN104409183A (en) | Composite insulator with built-in capacitance voltage-sharing screen | |
| CN201910323U (en) | Three-phase capacitor voltage-dividing electronic voltage transformer | |
| CN204118027U (en) | A kind of high-tension fuse with function of shielding | |
| CN204167022U (en) | A kind of high-voltage wall bushing | |
| CN204257303U (en) | A kind of built-in capacitance all presses the composite insulator of screen | |
| CN201444538U (en) | Composite bushing | |
| CN209843481U (en) | Multi-turn link type sulfur hexafluoride gas insulation current transformer | |
| CN201898025U (en) | Current transformator and shielding case | |
| CN202473587U (en) | Feedthrough type current transformer | |
| CN104332258B (en) | The high-voltage wall bushing improved | |
| CN208433724U (en) | Fixed sealing type wall bushing | |
| CN201315236Y (en) | Voltage transformer with shield cover | |
| CN201717518U (en) | Contact box with double-shielding structure | |
| CN201904169U (en) | 800 KV composite bushing | |
| CN204167834U (en) | A kind of outdoor part of high-voltage wall bushing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180530 Address after: Baden, Switzerland Patentee after: ABB Switzerland Co.,Ltd. Address before: Zurich Patentee before: ABB TECHNOLOGY Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
|
| CX01 | Expiry of patent term |