CN2665881Y - Shielding insulated cable shaped conductive tube generatrix - Google Patents
Shielding insulated cable shaped conductive tube generatrix Download PDFInfo
- Publication number
- CN2665881Y CN2665881Y CN 03226611 CN03226611U CN2665881Y CN 2665881 Y CN2665881 Y CN 2665881Y CN 03226611 CN03226611 CN 03226611 CN 03226611 U CN03226611 U CN 03226611U CN 2665881 Y CN2665881 Y CN 2665881Y
- Authority
- CN
- China
- Prior art keywords
- contact tube
- shape contact
- cable shape
- shield cable
- tube bus
- 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
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- Gas-Insulated Switchgears (AREA)
Abstract
A shielded and insulated cable type conductive tube generatrix with zero insulating surface potential is especially applicable to the direct connection of a power main transformer and a high voltage switching incoming cabinet in a transformer substation. The operation of the utility model is safe and reliable and the structure is simple.
Description
The utility model insulated shield cable shape contact tube bus is specially adapted to that power transformer directly is connected use with high-voltage switch gear room equipment in transformer station, and is safe and reliable to operation.
Existing transformer station in service, power transformer is connected with bus bridge with incoming line cabinet in the high-voltage switch gear room, and the insulation support fixation point of existing bus bridge is will install post insulator additional and the wall bushing that insulate, and is the porcelain insulation mode.This bus connects operational mode and has non-uniform electric, and post insulator and insulation wall bushing Short Circuit withstand electric power are little, stretching-resisting bending-resisting intensity difference, fracture easily, operation are dangerous, complex structure, installation complexity.
Have non-uniform electric for overcoming this connection operational mode, post insulator and insulation wall bushing Short Circuit withstand electric power are little, stretching-resisting bending-resisting intensity difference, fracture easily, operation are dangerous, complex structure, installation complexity.The utility model provides a kind of insulated shield cable shape contact tube bus, and the insulating material of this insulated shield cable shape contact tube bus is to use the plastics class, and insulation mode is a shielding insulation.Because electric shield has: (1) makes Electric Field Distribution even, (2) CONTROLLED POTENTIAL and restriction electric field, (3) avoid producing partial discharge at insulating surface, (4) conduct leakage current and charging current, (5) touch voltage of danger such as is protected at characteristic, so this insulated shield cable shape contact tube bus Electric Field Distribution is even, electrical insulation properties is strong, because insulated shield cable shape contact tube bus bulk potential is zero, the insulating surface touch voltage that is safe from danger, and can cancel post insulator and insulation wall bushing, make insulated shield cable shape contact tube bus easy for installation as cable, simple in structure, Electric Field Distribution is even.
The technical scheme that its technical problem that solves the utility model adopts is: be connected with insulated shield cable shape contact tube bus between power transformer and high-voltage switch gear incoming line cabinet, the two ends of insulated shield cable shape contact tube bus are connected with the high-voltage switch gear incoming line cabinet with power transformer with the insulation expansion joint.Insulated shield cable shape contact tube bus is fixed on support bus metallic support and the high-voltage switch gear room wall metallic support, installs the inspection earthing device additional in the centre of insulated shield cable shape contact tube bus.This insulated shield cable shape contact tube bus is that insulating material is to use the plastics class with tubular shape conductor appearance shielding insulation in addition.Insulated shield cable shape contact tube bus external insulation layer is the conductive shield ground plane, with conductive shield ground plane ground connection in addition, and protective sleeve, making this insulated shield cable shape contact tube bus insulation top layer current potential is zero.Reach cancellation post insulator and insulation wall bushing and make the purpose of insulation support fixation, directly insulated shield cable shape contact tube bus is fixed on and supports on bus metallic support and the high-voltage switch gear room wall metallic support, so just can make that insulated shield cable shape contact tube bus reaches that Electric Field Distribution is even, the Short Circuit withstand electric power greatly, stretching-resisting bending-resisting intensity height, safe, simple in structure, easy for installation.
The beneficial effects of the utility model are, give in addition shielding insulation of contact tube bus with the contact tube bus with insulated shield cable shape mode, make that insulated shield cable shape contact tube bus is safe, simple in structure, easy for installation as cable, Electric Field Distribution is even.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structure chart of the utility model insulated shield cable shape contact tube bus.
1. power transformers among the figure, bus metallic support, 4. insulated shield cable shape contact tube bus, 5. inspection earthing device, 6. high-voltage switch gear room wall metallic support, 7. high-voltage switch gear incoming line cabinet are 3. supported in 2. insulation expansion joint.
In Fig. 1, be connected with insulated shield cable shape contact tube bus (4) between power transformer (1) and high-voltage switch gear incoming line cabinet (7), the two ends of insulated shield cable shape contact tube bus (4) are connected with high-voltage switch gear incoming line cabinet (7) with power transformer (1) with insulation expansion joints (2).Insulated shield cable shape contact tube bus (4) is fixed on support bus metallic support (3) and the high-voltage switch gear room wall metallic support (6), installs inspection earthing device (5) additional in the centre of insulated shield cable shape contact tube bus (4).This insulated shield cable shape contact tube bus (4) is that insulating material is to use the plastics class with tubular shape conductor appearance shielding insulation in addition.Insulated shield cable shape contact tube bus outermost insulating barrier is the conductive shield ground plane, with conductive shield ground plane ground connection in addition, and protective sleeve, making this insulated shield cable shape contact tube bus insulation top layer current potential is zero.
Claims (4)
1, a kind of insulated shield cable shape contact tube bus, be used for power transformer and be connected with the high-voltage switch gear incoming line cabinet and make overcurrent and use, its technical characterictic is that insulated shield cable shape contact tube bus is that insulating material is to use the plastics class with tubular shape conductor appearance shielding insulation in addition.Insulated shield cable shape contact tube bus outermost insulating barrier is the conductive shield ground plane, with conductive shield ground plane ground connection in addition, and protective sleeve, making this insulated shield cable shape contact tube bus insulation top layer current potential is zero.
2, insulated shield cable shape contact tube bus according to claim 1 is characterized in that the two ends of insulated shield cable shape contact tube bus are connected with the high-voltage switch gear incoming line cabinet with power transformer with the insulation expansion joint.
3, insulated shield cable shape contact tube bus according to claim 1 is characterized in that the centre of insulated shield cable shape contact tube bus installs the inspection earthing device additional.
4, insulated shield cable shape contact tube bus according to claim 1 is characterized in that insulated shield cable shape contact tube bus is fixing with supporting bus metallic support and high-voltage switch gear room wall metallic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226611 CN2665881Y (en) | 2003-05-30 | 2003-05-30 | Shielding insulated cable shaped conductive tube generatrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226611 CN2665881Y (en) | 2003-05-30 | 2003-05-30 | Shielding insulated cable shaped conductive tube generatrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665881Y true CN2665881Y (en) | 2004-12-22 |
Family
ID=34326028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03226611 Expired - Lifetime CN2665881Y (en) | 2003-05-30 | 2003-05-30 | Shielding insulated cable shaped conductive tube generatrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665881Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888078A (en) * | 2010-06-30 | 2010-11-17 | 国家电网公司 | Line stringing mode |
| CN106025963A (en) * | 2016-05-25 | 2016-10-12 | 国网山东省电力公司莱芜供电公司 | Anti-leakage overhead incoming line combination fixing apparatus for 10kV distribution room |
-
2003
- 2003-05-30 CN CN 03226611 patent/CN2665881Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888078A (en) * | 2010-06-30 | 2010-11-17 | 国家电网公司 | Line stringing mode |
| CN106025963A (en) * | 2016-05-25 | 2016-10-12 | 国网山东省电力公司莱芜供电公司 | Anti-leakage overhead incoming line combination fixing apparatus for 10kV distribution room |
| CN106025963B (en) * | 2016-05-25 | 2017-07-18 | 国网山东省电力公司莱芜供电公司 | The 10kV switchgear houses service drop combination fastener of antiseep |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130530 Granted publication date: 20041222 |