CN104362565A - Ultrahigh-voltage resin-impregnated paper capacitive wall bushing - Google Patents
Ultrahigh-voltage resin-impregnated paper capacitive wall bushing Download PDFInfo
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- CN104362565A CN104362565A CN201410623523.1A CN201410623523A CN104362565A CN 104362565 A CN104362565 A CN 104362565A CN 201410623523 A CN201410623523 A CN 201410623523A CN 104362565 A CN104362565 A CN 104362565A
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- sleeve
- inner catheter
- gland
- cover plate
- head connector
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Abstract
The invention provides an ultrahigh-voltage resin-impregnated paper capacitive wall bushing. After two ends of a connecting sleeve are both connected with hollow composite insulators, the two ends of the connecting sleeve are connected with an outdoor head connector and an indoor head connector, respectively; a dual-guide-tube structure comprises two inner guide tubes provided in the center of the connecting sleeve and of the hollow composite insulators; the inner guide tubes are connected through a carrier terminal prior to penetrating the whole bushing; two ends of the inner guide tubes extend out of the outdoor head connector and the indoor head connector prior to being connected with external junction plates; an outer guide tube sleeves the inner guide tubes; a capacitor core serving as main insulation of the bushing is provided outside the outer guide tube; the capacitor core is in an epoxy resin impregnated insulation structure; the connecting sleeve and the hollow composite insulators are filled with SF6 gas. The dual-guide-tube structure helps reduce the influence of heat of a conducting tube upon the performance of the capacitor core, thus improving insulation of the bushing; the capacitor core serving as the main insulation of the bushing is in the epoxy resin impregnated insulation structure, and insulating performance is further improved.
Description
Technical field
The present invention relates to power equipment, particularly relate to a kind of extra-high moulding leaching paper capacitor formula wall bushing.
Background technology
In recent years, China's direct current transportation obtains develop rapidly, expands further in direct current transportation project to the demand of glue leaching paper wall bushing.Existing wall bushing not only complex structure, because structure receives it, existing sleeve pipe is in use because contact tube heating can cause insulation property to reduce, extreme high voltage transmission of electricity needs cannot be met, also can not meet the need of market at present and can connect insulation and supporting role wall bushing through building walls to line, in order to meet the demand of power transmission engineering to glue leaching paper direct-current wall bushing, the direct-current wall bushing of composite demand must be developed.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, good insulation preformance, direct current can be met, exchange dual-purpose extra-high moulding leaching paper capacitor formula wall bushing.
A kind of extra-high moulding leaching paper capacitor formula wall bushing, comprises outdoor head connector, hollow combined insulator, branch sleeve, indoor head connector and DLC structure, be connected with outdoor head connector and indoor head connector respectively after described branch sleeve two ends all connect hollow combined insulator, DLC structure comprises the two-section inner catheter being arranged on branch sleeve and hollow combined insulator center, connected by current carrying terminals in the middle of two-section inner catheter and run through whole sleeve pipe, and inner catheter two ends are stretched out outdoor head connector respectively and are connected with external cabling plate with indoor head connector, two-section inner catheter outside suit outer catheter, outer catheter periphery is provided with the capacitor core as sleeve pipe main insulation, capacitor core edge adopts epoxide-resin glue leaching paper insulation structure, branch sleeve and hollow combined insulator inside are filled with SF
6gas.
Described branch sleeve forms by by the first sleeve of Flange joint, transition sleeve and the second sleeve, and the first sleeve, the second sleeve are connected with the hollow combined insulator of both sides respectively, the first sleeve, leaves make SF between the second sleeve and transition sleeve
6the pore of gas circulation, transition sleeve is provided with monitoring SF
6the Pressure gauge of gas pressure, the first sleeve, the second sleeve are all provided with test tapping device.
The two ends that two capacitor cores on described two-section outer catheter deviate from mutually are equipped with bulge-structure for clamping branch sleeve, two capacitor core afterbody docking, joint is shielded by pressure-equalizing device, branch sleeve is enclosed within the bulge-structure of two capacitor cores, and inner catheter and outer catheter two ends are all located by positioner.
Described outdoor head connector comprises grading ring, cover plate, the first gland and the second gland, cover plate is fixed on the external insulation sleeve of hollow combined insulator by mucilage binding flange, first gland and the second gland are stacked successively by screw and fix on the cover board, be threaded connection between second gland and inner catheter, inner catheter is positioned, be equipped with shaft seal between inner catheter and two glands, inner catheter is connected with terminal block with the second gland through cover plate, the first gland, and grading ring is fixing on the cover board.
Described indoor head connector comprises grading ring, cover plate and gland, cover plate is fixed on hollow combined insulator external insulation sleeve by mucilage binding flange, gland is fixed by screws on cover plate for fixing inner catheter, shaft seal is provided with between inner catheter and gland, inner catheter is connected with terminal block through cover plate, gland, and grading ring is fixing on the cover board.
Described capacitor core end is provided with base, and current carrying terminals is arranged on base, and current carrying terminals connects two-section inner catheter by spring contact and carries out current-carrying, and pressure-equalizing device is fixed by screws on current carrying terminals.
Two described hollow combined insulator umbellate forms are large and small umbrella structure.
Stripper rubber is provided with between described branch sleeve 37 and hollow combined insulator.
Described inner catheter two ends are provided with external screw thread, are connected with external cabling plate by screw thread.
Relative to prior art, the present invention has following beneficial effect:
(1) sleeve pipe adopts DLC structure, is conducive to reducing the impact of sleeve pipe contact tube heating on insulation core body performance, improves sleeve pipe insulation property, is applicable to ± 1000kV extra high voltage direct current transmission line;
(2) the main insulation capacitor core as sleeve pipe adopts epoxide-resin glue leaching paper insulation structure; External insulation is the hollow rubber insulator of organic composite silicon, improves insulation property further;
Further, sleeve pipe main insulation adopts the form of two capacitor core afterbody docking, and joint is shielded by pressure-equalizing device; Sleeve pipe current-carrying adopts the direct current-carrying of contact tube, and the connection of afterbody current-carrying is led and spring contact current-carrying by taper, safe and reliable; Branch sleeve is provided with SF
6monitoring device, carries out enforcement monitoring when sleeve pipe runs, ensure that the electric property of sleeve pipe is reliable; Meanwhile, be the radio interference that the partial discharge reducing casing high pressure position produces, at sleeve pipe two ends, head is equipped with grading ring.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention's extra-high moulding leaching paper capacitor formula wall bushing;
Fig. 2 is that in the present invention, outdoor interior head connects headgear partial schematic diagram;
Fig. 3 is that in the present invention, indoor head connects headgear partial schematic diagram;
Fig. 4 is joint sleeve structural representation in the present invention;
Fig. 5 is the inside and outside guide-tube structure figure of middle sleeve of the present invention;
Fig. 6 is middle sleeve afterbody of the present invention docking schematic diagram.
Embodiment
Technical scheme of the present invention is described in detail below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 to Fig. 6, a kind of extra-high moulding leaching paper capacitor formula wall bushing of the present invention, comprises outdoor head connector 100, first sleeve 101, transition sleeve 103, second sleeve 105, indoor head connector 102 and DLC structure.
First sleeve 101, transition sleeve 103, be connected with outdoor head connector 100 and indoor head connector 102 respectively after the branch sleeve two ends that second sleeve 105 forms all connect hollow combined insulator 104, DLC structure comprises the two-section inner catheter being arranged on branch sleeve and hollow combined insulator 104 center, connected by current carrying terminals 48 in the middle of two-section inner catheter and run through whole sleeve pipe, and inner catheter 44 two ends are stretched out outdoor head connector 100 respectively and are connected with external cabling plate 3 with indoor head connector 102, two-section inner catheter 44 outside suit outer catheter 45, outer catheter 45 periphery is provided with the capacitor core 47 as sleeve pipe main insulation, capacitor core 47 edge adopts epoxide-resin glue leaching paper insulation structure, branch sleeve and hollow combined insulator 104 inside are filled with SF
6gas, hollow combined insulator 104 is the coated organic composite silicone rubber cover in expoxy glass fiber tube periphery.
Refer to shown in Fig. 2, outdoor head connector 100 comprises grading ring 2, terminal block 3, hold-down screw, lock washer, the first gland 6-1 and the second gland 6-2, cover plate 11, rubber washer; The insulating case head periphery of hollow combined insulator 104 is provided with cover plate 11, and cover plate 11 fixes external insulation sleeve by mucilage binding flange; First gland 6-1 and the second gland 6-2 is stacked successively by screw and is fixed on cover plate 11, be threaded connection between second gland 6-2 and inner catheter 44, inner catheter 44 is positioned, simultaneously inner catheter 44 and be equipped with shaft seal between the first gland 6-1 and the second gland 6-2, inner catheter 44 is worn out by cover plate 11, first gland 6-1 and the second gland 6-2, is connected with terminal block 3; Grading ring 2 is fixed on cover plate 11.
Refer to shown in Fig. 3, indoor head connector 102 comprises grading ring 2, terminal block 3, hold-down screw, lock washer, gland 6, cover plate 11, rubber washer; The insulating case head periphery of hollow combined insulator 104 is provided with cover plate 11, and cover plate 11 fixes external insulation sleeve by mucilage binding flange; Cover plate 11 is provided with gland 6, and gland 6 is provided with one shaft seal for the while of fixing inner catheter on inner catheter; Inner catheter 44 is worn out by cover plate 11, gland 6, is connected with terminal block 3; Grading ring 2 is fixed on cover plate 11.
Refer to shown in Fig. 4, branch sleeve comprises the first sleeve 101, transition sleeve 103 and the second sleeve 105, transition sleeve 103, rubber washer, test tapping device 38, SF
6pressure gauge 43; Hollow combined insulator 104 afterbody is all connected with the first sleeve 101 and the second sleeve 105 respectively by mucilage binding flange, between be provided with face envelope; Capacitor core 47 is provided with a bulge-structure, and branch sleeve is enclosed within the bulge-structure of capacitor core 47; Transition sleeve 103 two ends connect with the first sleeve 101, second sleeve 105 respectively, between transition sleeve 103 and the first sleeve 101, second sleeve 105, are equipped with stripper rubber between the first sleeve 101, second sleeve 105 and hollow combined insulator 104; First sleeve 101, second sleeve 105 is processed with 8 apertures with transition sleeve 103 endoporus place, and SF6 gas uniform can be made to be full of whole sleeve pipe.
First sleeve 101, transition sleeve 103 are equipped with measurement mechanism 38, are used for measuring the dielectric loss of sleeve pipe, office puts and capacitance; Transition sleeve 103 is equipped with SF6 Pressure gauge 43, carries out enforcement monitoring when sleeve pipe runs, and ensures that the electric property of sleeve pipe is reliable.
Refer to shown in Fig. 5, the mutual alignment of two conduits is fixed at inner catheter 44 and outer catheter 45 two ends by positioner 46.
Refer to shown in Fig. 6, sleeve pipe main insulation adopts the form of two capacitor core 47 afterbody docking, and joint is shielded by pressure-equalizing device 49; Current carrying terminals 48 connects inner catheter 44 current-carrying by spring contact 51, and base 55 is fixed with capacitor core 47, and current carrying terminals 48 is arranged on base 55, and pressure-equalizing device 49 is fixed by screws on current carrying terminals 48 and plays shielding all pressure effects.
The glue leaching paper capacitor formula direct-current wall bushing that the present invention adopts epoxy resin impregnated insulating paper technology to manufacture, have non-maintaining, pollution-free, volume is little, the advantage such as lightweight, easy to use, be subject to the welcome of more and more user, become the bright spot in sleeve pipe market, obtain the favor of user.According to the trend of electric power system non-oil ultra high vacuum system development, dry type wall bushing has good market prospects.
Claims (9)
1. an extra-high moulding leaching paper capacitor formula wall bushing, is characterized in that: comprise outdoor head connector (100), hollow combined insulator (104), branch sleeve, indoor head connector (102) and DLC structure, described branch sleeve two ends are connected with outdoor head connector (100) and indoor head connector (102) after all connecting hollow combined insulator (104) respectively, DLC structure comprises the two-section inner catheter being arranged on branch sleeve and hollow combined insulator (104) center, connected by current carrying terminals (48) in the middle of two-section inner catheter and run through whole sleeve pipe, and inner catheter (44) two ends are stretched out outdoor head connector (100) respectively and are connected with external cabling plate (3) with indoor head connector (102), two-section inner catheter (44) outside suit outer catheter (45), outer catheter (45) periphery is provided with the capacitor core (47) as sleeve pipe main insulation, capacitor core (47) edge adopts epoxide-resin glue leaching paper insulation structure, branch sleeve and hollow combined insulator (104) inside are filled with SF6 gas.
2. extra-high moulding leaching paper capacitor formula wall bushing according to claim 1, it is characterized in that: described branch sleeve is by the first sleeve (101) by Flange joint, transition sleeve (103) and the second sleeve (105) composition, first sleeve, second sleeve is connected with the hollow combined insulator (104) of both sides respectively, first sleeve, the pore that SF6 gas is circulated is left between second sleeve and transition sleeve (103), transition sleeve (103) is provided with the Pressure gauge (43) of monitoring SF6 gas pressure, first sleeve, second sleeve is all provided with test tapping device (38).
3. extra-high moulding leaching paper capacitor formula wall bushing according to claim 1, it is characterized in that: the two ends that two capacitor cores (47) on described two-section outer catheter (45) are deviated from mutually are equipped with bulge-structure for clamping branch sleeve, two capacitor cores (47) afterbody docks, joint is by pressure-equalizing device (49) shielding, branch sleeve is enclosed within the bulge-structure of two capacitor cores (47), and inner catheter (44) and outer catheter (45) two ends are all located by positioner (46).
4. the extra-high moulding leaching paper capacitor formula wall bushing according to any one of claim 1-3, it is characterized in that: described outdoor head connector (100) comprises grading ring (2), cover plate (11), first gland (6-1) and the second gland (6-2), cover plate (11) is fixed on by mucilage binding flange on the external insulation sleeve of hollow combined insulator (104), first gland (6-1) and the second gland (6-2) are stacked successively by screw and are fixed on cover plate (11), be threaded connection between second gland (6-2) and inner catheter (44), inner catheter (44) is positioned, shaft seal is equipped with between inner catheter (44) and two glands, inner catheter (44) is through cover plate (11), first gland (6-1) is connected with terminal block (3) with the second gland (6-2), grading ring (2) is fixed on cover plate (11).
5. the extra-high moulding leaching paper capacitor formula wall bushing according to any one of claim 1-3, it is characterized in that: described indoor head connector (102) comprises grading ring (2), cover plate (11) and gland (6), cover plate (11) is fixed on hollow combined insulator (104) external insulation sleeve by mucilage binding flange, gland (6) is fixed by screws on cover plate (11) for fixing inner catheter (44), shaft seal is provided with between inner catheter (44) and gland (6), inner catheter (44) is through cover plate (11), gland (6) is connected with terminal block (3), grading ring (2) is fixed on cover plate (11).
6. extra-high moulding leaching paper capacitor formula wall bushing according to claim 5, it is characterized in that: described capacitor core (47) end is provided with base (55), current carrying terminals (48) is arranged on base (55), current carrying terminals (48) connects two-section inner catheter (44) by spring contact (51) and carries out current-carrying, and pressure-equalizing device (49) is fixed by screws on current carrying terminals (48).
7. extra-high moulding leaching paper capacitor formula wall bushing according to claim 5, is characterized in that: two described hollow combined insulator (104) umbellate forms are large and small umbrella structure.
8. extra-high moulding leaching paper capacitor formula wall bushing according to claim 5, is characterized in that: be provided with stripper rubber between described branch sleeve 37 and hollow combined insulator (104).
9. extra-high moulding leaching paper capacitor formula wall bushing according to claim 5, be is characterized in that: described inner catheter (44) two ends are provided with external screw thread, is connected by screw thread with external cabling plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623523.1A CN104362565A (en) | 2014-11-06 | 2014-11-06 | Ultrahigh-voltage resin-impregnated paper capacitive wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623523.1A CN104362565A (en) | 2014-11-06 | 2014-11-06 | Ultrahigh-voltage resin-impregnated paper capacitive wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104362565A true CN104362565A (en) | 2015-02-18 |
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ID=52529803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623523.1A Pending CN104362565A (en) | 2014-11-06 | 2014-11-06 | Ultrahigh-voltage resin-impregnated paper capacitive wall bushing |
Country Status (1)
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|---|---|
| CN (1) | CN104362565A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953241A (en) * | 2017-04-22 | 2017-07-14 | 上海华东电器集团电气有限公司 | Gas-insulated transmission line |
| CN107507705A (en) * | 2017-10-13 | 2017-12-22 | 镇江市丹高电器有限公司 | A kind of insulating sleeve of high sealing performance |
| CN108736409A (en) * | 2018-07-27 | 2018-11-02 | 山东彼岸电力科技有限公司 | A kind of gas wall bushing |
| CN110729684A (en) * | 2019-10-31 | 2020-01-24 | 西安交通大学 | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof |
| WO2020082556A1 (en) * | 2018-10-23 | 2020-04-30 | 南京智达电气设备有限公司 | Combination ultra-high-pressure rubber-impregnated paper sleeve |
| CN114050532A (en) * | 2021-09-22 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800kV flexible direct-current wall bushing |
-
2014
- 2014-11-06 CN CN201410623523.1A patent/CN104362565A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953241A (en) * | 2017-04-22 | 2017-07-14 | 上海华东电器集团电气有限公司 | Gas-insulated transmission line |
| CN107507705A (en) * | 2017-10-13 | 2017-12-22 | 镇江市丹高电器有限公司 | A kind of insulating sleeve of high sealing performance |
| CN108736409A (en) * | 2018-07-27 | 2018-11-02 | 山东彼岸电力科技有限公司 | A kind of gas wall bushing |
| WO2020082556A1 (en) * | 2018-10-23 | 2020-04-30 | 南京智达电气设备有限公司 | Combination ultra-high-pressure rubber-impregnated paper sleeve |
| CN110729684A (en) * | 2019-10-31 | 2020-01-24 | 西安交通大学 | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof |
| CN110729684B (en) * | 2019-10-31 | 2020-10-27 | 西安交通大学 | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof |
| CN114050532A (en) * | 2021-09-22 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 800kV flexible direct-current wall bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170110 Address after: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Applicant after: China XD Electric Co., Ltd. Applicant after: Xi'an Xidian High Pressure Sleeve Co., Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Applicant before: China XD Electric Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |