CN205070380U - 320kV DC cable outdoor termination - Google Patents
320kV DC cable outdoor termination Download PDFInfo
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- CN205070380U CN205070380U CN201520860474.3U CN201520860474U CN205070380U CN 205070380 U CN205070380 U CN 205070380U CN 201520860474 U CN201520860474 U CN 201520860474U CN 205070380 U CN205070380 U CN 205070380U
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- gold utensil
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- insulator
- outdoor terminal
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Abstract
The utility model discloses a 320kV DC cable outdoor termination, draw forth stick and high -pressure side shield ring including lower part gold utensil, insulation support, stress control piece, upper portion gold utensil, conductor. Lower part gold utensil, insulation support and upper portion gold utensil constitute sealed chamber. The upper portion gold utensil passes through the sealing washer and installs the up end at insulation support, and fastening gold utensil and the fixed gold utensil of conductor are still installed in proper order to the up end of this upper portion gold utensil, the stress control piece includes insulator and stress cone, the insulator suit is on the cable, and the stress cone is the ascending loudspeaker of opening form, and establish in the inner chamber lower part of insulator on the upper portion of this stress cone, and the lower part of stress cone extends to the outer just suit of insulator on the cable, the high -pressure side shield ring is installed on the gold utensil of upper portion and is lain in the periphery that the stick was drawn to insulation support's upper portion, upper portion gold utensil, fastening gold utensil, the fixed gold utensil of conductor and conductor. The utility model discloses an outdoor termination, simple structure, sealing performance be good, be favorable to the operation of cable security of system, easily installation operation.
Description
Technical field
The utility model relates to a kind of 320kV direct current cables outdoor terminal.
Background technology
Along with the continuous propelling of all parts of the world power grid construction, global power demand is in rising trend.In global power engineering construction, the high voltage direct current cable demand needed for long distance powedr transmission gets more and more, and global high voltage direct current cable market is ever-increasing trend.Therefore, high voltage dc transmission technology is just becoming a more and more important technology.With regard to the characteristic of high voltage dc transmission technology itself, high voltage direct current cable not only transmission capacity is two times of ac cable, and transmission of electricity electric energy loss is only 40% of ac cable, thus transmission distance obtains great lengthening, and the stability of meanwhile powering and reliability have also been obtained large increase.
Direct current cables terminal is exactly be development HVDC Transmission Technology, builds cable connection needed for direct current transportation networking project of new generation and provides solution, to adapt to the demand that the remote direct current transportation of China, new forms of energy and ocean are developed.Existing direct current cables terminal also exists more deficiency, such as: sealing is poor, affects the safe operation of cable system; Installation procedure is complicated, is unfavorable for the raising of installation effectiveness.
Utility model content
The purpose of this utility model is to overcome the defect of prior art and provides a kind of 320kV direct current cables outdoor terminal, and its structure is simple, good seal performance, be conducive to cable system safe operation, be easy to fitting operation.
The purpose of this utility model is achieved in that a kind of 320kV direct current cables outdoor terminal, comprises bottom gold utensil, is arranged on the insulating sleeve of the upper surface of bottom gold utensil, be positioned at insulating sleeve and be sleeved on Stress Control part on cable, be arranged on the top gold utensil of the upper end of insulating sleeve and be connected to the conductor upper end of cable and stretch out the conductor eduction bar of top gold utensil; Described bottom gold utensil, insulating sleeve and top gold utensil form annular seal space, and sealing is filled with insulating oil in chamber; Cable inserts in annular seal space from the central perforation of described bottom gold utensil; Described outdoor terminal also comprises high-pressure side shading ring; Wherein,
Described top gold utensil is arranged on the upper surface of described insulating sleeve by sealing ring, the upper surface of this top gold utensil also installs a fastening gold utensil successively and a conductor fixes gold utensil;
Described Stress Control part comprises insulator and stress cone; Described insulator is sleeved on cable, and described stress cone is the horn-like of opening upwards, and the top of this stress cone is located at the inner chamber bottom of insulator, and it is outer and be sleeved on cable that the bottom of stress cone extends to insulator;
Described high-pressure side shading ring to be arranged on the gold utensil of described top and be positioned at the top of described insulating sleeve, periphery that top gold utensil, fastening gold utensil, conductor fix gold utensil and conductor eduction bar.
Above-mentioned 320kV direct current cables outdoor terminal, wherein, described outdoor terminal also to comprise on suit cable and is inserted into the only oil pipe the middle part perforation of bottom gold utensil from the lower end of bottom gold utensil, the lower external face of only oil pipe should also be wound around the waterproof band that one deck extends to cable outer surface; The wall that should stop oil pipe is provided with ground terminal block.
Above-mentioned 320kV direct current cables outdoor terminal, wherein, described outdoor terminal also comprises a pair is arranged on the edge, lower surface of described bottom gold utensil symmetrically supporting insulator by pallet.
Above-mentioned 320kV direct current cables outdoor terminal, wherein, described insulating sleeve is the stacked porcelain bushing of full skirt.
Above-mentioned 320kV direct current cables outdoor terminal, wherein, described insulating oil is silicone oil.
Above-mentioned 320kV direct current cables outdoor terminal, wherein, described high-pressure side shading ring is for all to press shading ring.
Compared with prior art, tool has the following advantages and beneficial effect 320kV direct current cables outdoor terminal of the present utility model:
1. structure is simple, and good seal performance, is easy to fitting operation, and be conducive to cable system and stablize, reliably run, fail safe is higher;
2. adopt stress cone, solve electric field concentration problem, the Electric Field Distribution of insulation shield cut-off part can be made more even, and the electrical property of cable termination is more stable.
3. the electric field on the even terminal top of high-pressure side shading ring energy, reduces corona discharge, solves partial discharge and the voltage ageing of cable termination, improves the voltage endurance capability of terminal, reach the object of high-tension shielding.
Accompanying drawing explanation
Fig. 1 is the structural representation of 320kV direct current cables outdoor terminal of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, a kind of 320kV direct current cables outdoor terminal of the present utility model, comprise bottom gold utensil 13, insulating sleeve 1, top gold utensil 3, fastening gold utensil 4, conductor fix gold utensil 5, conductor eduction bar 2, Stress Control part 7, high-pressure side shading ring 12, only oil pipe 9 and a pair supporting insulator 10, wherein:
Insulating sleeve 1 is the stacked porcelain bushing of full skirt and is arranged on the upper surface of bottom gold utensil 13;
Top gold utensil 3 is arranged on the upper end of insulating sleeve 1 by sealing ring,
Bottom gold utensil 13, insulating sleeve 1 and top gold utensil 1 form annular seal space, are filled with insulating oil 11 in sealing chamber; Insulating oil 11 is silicone oil; Cable 14 inserts in annular seal space from the central perforation of bottom gold utensil 13;
Fastening gold utensil 4 and conductor fix the upper surface that gold utensil 5 is arranged on top gold utensil 3 successively;
Conductor eduction bar 2 is connected to the conductor upper end of cable 14 and stretches out top gold utensil 3, fastening gold utensil 4 and conductor and fix gold utensil 5;
Stress Control part 7 is positioned at the inner chamber of insulating sleeve 1 and is sleeved on cable 14, and this Stress Control part 7 comprises insulator 71 and stress cone 72; Insulator 71 is sleeved on cable 14, horn-like in opening upwards of stress cone 72, and the top of this stress cone 72 is located at the inner chamber bottom of insulator 71, and it is outer and be sleeved on cable 14 that the bottom of stress cone 72 extends to insulator 71; Stress Control part 7 can solve electric field concentration problem, the Electric Field Distribution of insulation shield cut-off part can be made more even, improve the stability of terminal;
High-pressure side shading ring 12 to be arranged on top gold utensil 3 and be positioned at the top of insulating sleeve 1, periphery that top gold utensil 3, fastening gold utensil 4, conductor fix gold utensil 5 and conductor eduction bar 2;
Only oil pipe 9 to be set with on cable 14 and to be inserted into the middle part perforation of bottom gold utensil 13 from the lower end of bottom gold utensil 13; The wall that should stop oil pipe 9 is provided with ground terminal block 8; In the lower external face of only oil pipe 9, also wrapped one deck extends to the waterproof band of the outer surface of cable 14;
A pair supporting insulator 10 is arranged on the edge of the lower surface of bottom gold utensil 13 symmetrically by pallet 15.
It is interference fit between Stress Control part 7 and cable 14.Stress Control part 7 adopts silastic material, by the high resiliency of Stress Control part 7, make can to keep between Stress Control part 7 and cable 14 stress and electrical strength constant, easy for installation, be set on cable, electric field concentration problem can be solved, the Electric Field Distribution of insulation shield cut-off part can be made more even, improve the stability of terminal.
The electric field on the even terminal top of high-pressure side shading ring energy, reduces corona discharge, solves partial discharge and the voltage ageing of cable termination, improves the voltage endurance capability of terminal, reach the object of high-tension shielding.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (6)
1. a 320kV direct current cables outdoor terminal, comprises bottom gold utensil, is arranged on the insulating sleeve of the upper surface of bottom gold utensil, be positioned at insulating sleeve and be sleeved on Stress Control part on cable, be arranged on the top gold utensil of the upper end of insulating sleeve and be connected to the conductor upper end of cable and stretch out the conductor eduction bar of top gold utensil; Described bottom gold utensil, insulating sleeve and top gold utensil form annular seal space, and sealing is filled with insulating oil in chamber; Cable inserts in annular seal space from the central perforation of described bottom gold utensil; It is characterized in that, described outdoor terminal also comprises high-pressure side shading ring;
Described top gold utensil is arranged on the upper surface of described insulating sleeve by sealing ring, the upper surface of this top gold utensil also installs a fastening gold utensil successively and a conductor fixes gold utensil;
Described Stress Control part comprises insulator and stress cone; Described insulator is sleeved on cable, and described stress cone is the horn-like of opening upwards, and the top of this stress cone is located at the inner chamber bottom of insulator, and it is outer and be sleeved on cable that the bottom of stress cone extends to insulator;
Described high-pressure side shading ring to be arranged on the gold utensil of described top and be positioned at the top of described insulating sleeve, periphery that top gold utensil, fastening gold utensil, conductor fix gold utensil and conductor eduction bar.
2. 320kV direct current cables outdoor terminal according to claim 1, it is characterized in that, described outdoor terminal also to comprise on suit cable and is inserted into the only oil pipe the middle part perforation of bottom gold utensil from the lower end of bottom gold utensil, the lower external face of only oil pipe should also be wound around the waterproof band that one deck extends to cable outer surface; The wall that should stop oil pipe is provided with ground terminal block.
3. 320kV direct current cables outdoor terminal according to claim 1 and 2, is characterized in that, described outdoor terminal also comprises a pair is arranged on the edge, lower surface of described bottom gold utensil symmetrically supporting insulator by pallet.
4. 320kV direct current cables outdoor terminal according to claim 1, is characterized in that, described insulating sleeve is the stacked porcelain bushing of full skirt.
5. 320kV direct current cables outdoor terminal according to claim 1, is characterized in that, described insulating oil is silicone oil.
6. 320kV direct current cables outdoor terminal according to claim 1, is characterized in that, described high-pressure side shading ring is for all to press shading ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520860474.3U CN205070380U (en) | 2015-10-30 | 2015-10-30 | 320kV DC cable outdoor termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520860474.3U CN205070380U (en) | 2015-10-30 | 2015-10-30 | 320kV DC cable outdoor termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070380U true CN205070380U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520860474.3U Active CN205070380U (en) | 2015-10-30 | 2015-10-30 | 320kV DC cable outdoor termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205070380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332195A (en) * | 2017-07-28 | 2017-11-07 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high voltage direct current cable outdoor terminal |
-
2015
- 2015-10-30 CN CN201520860474.3U patent/CN205070380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332195A (en) * | 2017-07-28 | 2017-11-07 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high voltage direct current cable outdoor terminal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |