CN201821008U - Connecting sleeve for solid-insulation high voltage bus - Google Patents
Connecting sleeve for solid-insulation high voltage bus Download PDFInfo
- Publication number
- CN201821008U CN201821008U CN 201020266783 CN201020266783U CN201821008U CN 201821008 U CN201821008 U CN 201821008U CN 201020266783 CN201020266783 CN 201020266783 CN 201020266783 U CN201020266783 U CN 201020266783U CN 201821008 U CN201821008 U CN 201821008U
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- CN
- China
- Prior art keywords
- rubber ring
- silicon rubber
- silicone rubber
- conductive silicon
- high voltage
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Abstract
The utility model discloses a connecting sleeve for a solid-insulation high voltage bus. The connecting end of a pipe body of the connecting sleeve is provided with a flange projected outwards, wherein the wall of a central through hole adjacent to the connecting end is provided with an inner conducting silicone rubber ring, and the wall of the other central through hole at the other end of the pipe body is provided with an outer conducting silicone rubber ring; the exterior of the two conducting silicone rubber rings, the space between the two conducting silicone rubber rings and the end face of the connecting end are made of insulating silicone rubber; and except for the end face of the connecting end, the external surface of the insulating silicone rubber is provided with a semiconductive silicone rubber layer communicated with the outer conducting silicone rubber ring. The connecting sleeve is used for sheathing the connecting terminal of the solid insulation bus, therefore the distance between the connected bus and a low potential component of high voltage electric equipment can be greatly shortened, the partial discharge of insulating materials by the connecting terminal can be effectively prevented, and the surface potential of the sleeve can be controlled within safe voltage through external grounding.
Description
Technical field
The utility model relates to electric power system power transmission and distribution technical field, the part that especially a kind of solid insulation bus that is used for being provided with outside the semiconductive material layer is tightly connected.
Background technology
Bus in the existing high-tension apparatus connects, and is to adopt gas-insulated mostly at connecting portion, wherein adopts air-insulated occasion, require the insulating space distance big, cause the bulky of high-tension apparatus, environmental change is bigger to its insulating capacity influence, safety, and useful life inadequately is short; And this bus is connected in the sulfur hexafluoride gas-insulating environment, though can dwindle isolation distance, sulfur hexafluoride gas needs gas tank encapsulation, and not only structure is complicated, and is restricted because sulfur hexafluoride gas uses more and more the influence of environment.For this reason, the applicant has adopted a kind of new technical scheme to come the bus in the high-voltage electrical equipment is insulated, its scheme is included in epoxy resin insulation material layer that the bus outer surface forms with pressure injection as the solid material isolated insulation, also is provided with the semiconductor layer and controls high voltage bus surface current potential over the ground outside the epoxy resin insulation material layer.The solid insulation bus of this structure also do not have at present to make its connecting portion to external world air isolate well, can prevent that again link is to connecting the adapter sleeve of insulating part generation partial discharge.
Summary of the invention
It is good that problem to be solved in the utility model provides a kind of sealed insulation performance, and the surface that is applicable to that office's value of putting is low has the solid insulation high voltage bus adapter sleeve that the solid insulation bus of semiconductor is connected and sealed.
In order to address the above problem, the technical solution of the utility model is: this solid insulation high voltage bus adapter sleeve is a body with central through hole, the link of described body has the flange of projection laterally, at the hole wall near the central through hole of this link an interior conductive silicon rubber ring is arranged, the hole wall of the central through hole of the other end of this body has an outer conductive silicon rubber ring; In described the conductive silicon rubber ring and described outside the outside of conductive silicon rubber ring, in described the conductive silicon rubber ring and described outside between the conductive silicon rubber ring and the end face part of described link be with conductive silicon rubber ring in described and described outside the conductive silicon rubber ring connect to as a whole electrically insulating silicone rubber part; The outer surface of described electrically insulating silicone rubber part except that the end face of described link is provided with one deck and the logical semiconductive silastic-layer of described outer conductive silicon rubber articulating, and the resistance value R of the every cm distance of outer surface of described semiconductive silastic-layer is: 500 ohm≤R≤10000 ohm
In the above-mentioned solid insulation high voltage bus adapter sleeve, described semiconductive silastic-layer can be by silicon rubber and be mixed in carbon dust in this silicon rubber or material that graphite powder constitutes is made.
The resistance value of the every cm distance of the utility model alleged semiconductive silastic-layer outer surface is meant the resistance value between 2 of 1 centimetre of this layer outer surface any distance.
Owing to adopted technique scheme, the utility model beneficial effect compared with prior art is:
1, interior conductive silicon rubber ring and outside the outside of conductive silicon rubber ring, interior conductive silicon rubber ring and outside between the conductive silicon rubber ring and the part outside the described link central through hole be the electrically insulating silicone rubber part, this part has been born the effect to high pressure connection bus connecting portion sealed solid, the distance of the electronegative potential parts of connection bus and high voltage electric equipment can be dwindled greatly, be convenient to the high voltage electric equipment miniaturization Design;
2, this is the outside that is set in bus and conducting connecting part connecting part by two identical covers at solid insulation high voltage bus adapter sleeve in use, between two this solid insulation high voltage bus adapter sleeves, adpting flange is housed, and between these two covers, is provided with the elastic insulated pad of crimping sealing.Therefore, originally the central through hole outside that is enclosed near this link is the part of interior conductive silicon rubber ring, can improve the Electric Field Distribution of the joint exposed part periphery that connection bus and conducting connecting part join, make the outer rim of high potential expand in conductive silicon rubber ring and electrically insulating silicone rubber joint partly, avoid position that connection bus and conducting connecting part join to its outer insulator generation partial discharge to influence insulating properties;
3, be coated with the semiconductive silastic-layer that one deck and outer conductive silicon rubber articulating lead at the outer surface of tube body of this solid insulation high voltage bus adapter sleeve, this cover outer surface is connected with the semiconductive material layer of solid insulation high voltage bus outer surface, under arms under the condition, carry out ground connection by semiconductive material layer to this semiconductive silastic-layer or solid insulation high voltage bus outer surface, the high-voltage of connection bus is isolated in this semiconductive silastic-layer, in case the personnel and the equipment of this solid insulation high voltage bus adapter sleeve outside suffer high-voltage electric shock.
Description of drawings
Fig. 1 is the main pseudosection that the utility model is implemented.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Solid insulation high voltage bus adapter sleeve shown in Figure 1 is by outer conductive silicon rubber ring 1, semiconductive silastic-layer 2, a body with central through hole of electrically insulating silicone rubber 3 and 4 compound formations of part of interior conductive silicon rubber ring.Body has the flange of projection laterally in the electrically insulating silicone rubber portion 3 of link, is the part of interior conductive silicon rubber ring 4 in the outside near the central through hole of link, and the outside of the central through hole of the other end of body is outer conductive silicon rubber ring 1 part; Interior conductive silicon rubber ring 4 and outside the outside of conductive silicon rubber ring 1, interior conductive silicon rubber ring 4 and outside between the conductive silicon rubber ring 1 and the part outside the link central through hole be the part of electrically insulating silicone rubber 3; The outer surface of electrically insulating silicone rubber 3 except that the end face of link, the semiconductive silastic-layer 2 that has one deck and outer conductive silicon rubber ring 1 to connect, the material of semiconductive silastic-layer 2 be by silicon rubber with sneak into carbon dust in the silicon rubber and constitute that (this material is made up of silicon rubber and the graphite that is mixed in the silicon rubber in embodiment in addition, have effect same), the resistance value R of the every cm distance of outer surface of described semiconductive silastic-layer is: 500 ohm≤R≤10000 ohm
The making of this solid insulation high voltage bus adapter sleeve is conductive silicon rubber ring 4 and an outer conductive silicon rubber ring 1 in making earlier, and then the complex of conductive silicon rubber ring 4 and outer conductive silicon rubber ring 1 in electrically insulating silicone rubber 3 links in making with the electrically insulating silicone rubber material is compound, the last outer surface formation semiconductive silastic-layer 2 that is compounded in outer conductive silicon rubber ring 1 and electrically insulating silicone rubber 3 again with the semiconductive silastic material.
Claims (1)
1. solid insulation high voltage bus adapter sleeve, it is a body with central through hole, it is characterized in that: the link of described body has the flange of projection laterally, at the hole wall near the central through hole of this link an interior conductive silicon rubber ring is arranged, the hole wall of the central through hole of the other end of this body has an outer conductive silicon rubber ring; In described the conductive silicon rubber ring and described outside the outside of conductive silicon rubber ring, in described the conductive silicon rubber ring and described outside between the conductive silicon rubber ring and the end face part of described link be with conductive silicon rubber ring in described and described outside the conductive silicon rubber ring connect to as a whole electrically insulating silicone rubber part; The outer surface of described electrically insulating silicone rubber part except that the end face of described link is provided with one deck and the logical semiconductive silastic-layer of described outer conductive silicon rubber articulating, and the resistance value R of the every cm distance of outer surface of described semiconductive silastic-layer is: 500 ohm≤R≤10000 ohm
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020266783 CN201821008U (en) | 2010-07-22 | 2010-07-22 | Connecting sleeve for solid-insulation high voltage bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020266783 CN201821008U (en) | 2010-07-22 | 2010-07-22 | Connecting sleeve for solid-insulation high voltage bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821008U true CN201821008U (en) | 2011-05-04 |
Family
ID=43918950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020266783 Expired - Fee Related CN201821008U (en) | 2010-07-22 | 2010-07-22 | Connecting sleeve for solid-insulation high voltage bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201821008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515898A (en) * | 2012-06-21 | 2014-01-15 | 西门子公司 | Disc-shaped insulator |
-
2010
- 2010-07-22 CN CN 201020266783 patent/CN201821008U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515898A (en) * | 2012-06-21 | 2014-01-15 | 西门子公司 | Disc-shaped insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20190722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |