CN203826894U - High voltage cable sheath circulating current compensation device - Google Patents
High voltage cable sheath circulating current compensation device Download PDFInfo
- Publication number
- CN203826894U CN203826894U CN201420234383.4U CN201420234383U CN203826894U CN 203826894 U CN203826894 U CN 203826894U CN 201420234383 U CN201420234383 U CN 201420234383U CN 203826894 U CN203826894 U CN 203826894U
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- iron core
- lower branch
- turn
- circles
- coil
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000004804 winding Methods 0.000 claims abstract description 26
- 239000004593 Epoxy Substances 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 208000008797 situs inversus Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 208000014903 transposition of the great arteries Diseases 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a high voltage cable sheath circulating current compensation device, comprising an upper half-turn iron core winding, a lower half-turn iron core winding, a seat and a striping band. The upper half-turn iron core winding and the lower half-turn iron core winding are installed by butt joint, fixed by the striping band and installed by the seat. The compensation device is easy to install, the compensation performance is adjustable, the cost is low and the application range is wide.
Description
Technical field
The utility model relates to a kind of device of auxiliary power transmission, especially a kind of circulation compensation arrangement for cable sheath.
Background technology
Along with development and the society attention to environmental protection that Chinese Urbanization is built, in 220kV and following city power distribution system, build just energetically and transform cable line.Be different from mesolow three-core cable, the induced voltage that high voltage single-core cable produces on its metal sheath is non-vanishing, and in the time of metal sheath and the earth formation path, the circulation producing on metal sheath may reach higher numerical value, cause sheath heating, reduce the ampacity of cable operation.The overheated cable insulation that also can cause of metal sheath is aging, and the safe operation of cable is constituted a threat to.
Normal three sections of conversion methods or the compensating cable method of adopting reduces metal sheath voltage both at home and abroad at present.But in actual engineering practice, along with the development of power construction, the transformation of cable line is increasing, is sometimes difficult to ensure cable sheath complete transposition and lay symmetry, thereby causes metal sheath Voltage unbalance; And adopt the method for compensating cable, increase construction cost and be subject to the constraint of steric requirements.
Adopt in addition in addition cable protective layer protector to protect cable sheath, in cable protective layer protector principle, carry out overvoltage protection by release current, instead of by reducing shield circulating current, the effect that puts into operation in Voltage Cable Lines Construction is unsatisfactory.
Summary of the invention
The technical problems to be solved in the utility model is that existing cable sheath protective device moves that most effect is bad or cost is higher.
In order to solve the problems of the technologies described above, the utility model provides a kind of high-tension cable shield circulating current compensation arrangement, comprise half-turn iron core winding, lower branch iron core winding, bearing and bandage, upper half-turn iron core winding comprises half-turn iron core and first circle epoxy package, lower branch iron core winding comprises lower branch iron core and lower branch epoxy package, upper half-turn iron core and the docking of lower branch iron core become an annular core, and be provided with the flat type copper wire of half-turn iron core and lower branch iron core in connection at a joint, be provided with the insulating paper that separates half-turn iron core and lower branch iron core at another joint, on annular core, be wound with coil, first circle epoxy package and lower branch epoxy package are wrapped in respectively on the coil outside half-turn iron core and lower branch iron core, on the outer circumference surface of first circle epoxy package and lower branch epoxy package, be all provided with the groove of half-turn, bandage is arranged in groove, and lock with tie down screw in the joint of bandage, first circle epoxy package is provided with the earth terminal being connected with coil and the coil tap being connected with cable sheath outward with lower branch epoxy package, bearing is arranged on lower branch epoxy package.
In employing, half-turn iron core winding and the docking of lower branch iron core winding become an annular core, while installation in the cable line having set up, without fitting inside from of cable, be installed on cable and can be directly upper half-turn iron core winding and lower branch iron core winding be remerged after separately, make cable be positioned at annular core, facilitate equipment to install, improved installation effectiveness; Adopt joint setting therein to separate the insulating paper of half-turn iron core and lower branch iron core, thereby change the air gap thickness between upper half-turn iron core and lower branch iron core by changing the insulating paper of different-thickness, carry out the compensation performance of adjusting device, improve compensation efficiency, but also made this device there is the larger scope of application.
As further restriction scheme of the present utility model, the quantity of coil tap is 5, respectively corresponding different coil turns.Adopt 5 taps corresponding different coil turns respectively, thereby the compensation performance of adjusting device improves the adaptive capacity of this device.
As further restriction scheme of the present utility model, the total number of turns of coil is 120 circles, and is divided into four layers on annular core, and the number of turn of each layer is respectively 34 circles, 32 circles, 28 circles and 26 circles from inside to outside.In the time designing for the cable of 110KV, the coil that is 120 by total number of turns divides four layers on annular core, and the number of turn of each layer is respectively 34 circles, 32 circles, 28 circles and 26 circles, and this setting has higher compensation effect.
As further restriction scheme of the present utility model, 5 taps of the coil tap respectively number of turns number of turn of correspondence are 80 circles, 90 circles, 100 circles, 110 circles and 120 circles.In the time designing for the cable of 110KV, respectively the coil turn of each tap is designed, contribute to select suitable tap, thereby improve the compensation performance of device.
As further restriction scheme of the present utility model, the internal diameter of upper half-turn iron core and lower branch iron core is all 210mm, and external diameter is all 260mm, and sectional area is 1250mm
2.In the time designing for the cable of 110KV, the internal diameter of upper half-turn iron core and lower branch iron core is all set to 210mm, external diameter is all set to 260mm, and sectional area is set to 1250mm
2, this setting has higher compensation effect.
The beneficial effects of the utility model are: in (1) employing, half-turn iron core winding and the docking of lower branch iron core winding become an annular core, facilitate equipment to install, and have improved installation effectiveness; (2) thus change the air gap thickness between upper half-turn iron core and lower branch iron core by the insulating paper of changing different-thickness, carry out the compensation performance of adjusting device, improved compensation efficiency; (3) adopt 5 taps corresponding different coil turns respectively, thereby the compensation performance of adjusting device has improved the adaptive capacity of this device.
Brief description of the drawings
Fig. 1 is external structure schematic diagram of the present utility model;
Fig. 2 is end view of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is cutaway view of the present utility model;
Fig. 5 is coil tap schematic diagram of the present utility model;
Fig. 6 is upper half-turn iron core winding cutaway view of the present utility model;
Fig. 7 is lower branch iron core winding cutaway view of the present utility model.
Embodiment
As shown in Fig. 1-7, high-tension cable shield circulating current compensation arrangement of the present utility model comprises half-turn iron core winding 1, lower branch iron core winding 2, bearing 3 and bandage 7, upper half-turn iron core winding 1 comprises half-turn iron core 13 and first circle epoxy package 11, lower branch iron core winding 2 comprises lower branch iron core 23 and lower branch epoxy package 21, upper half-turn iron core 13 and 23 docking of lower branch iron core become an annular core, and be provided with the flat type copper wire 5 of half-turn iron core 13 and lower branch iron core 23 in connection at a joint, be provided with the insulating paper 6 that separates half-turn iron core 13 and lower branch iron core 23 at another joint, on annular core, be wound with coil 12, first circle epoxy package 11 and lower branch epoxy package 21 are wrapped in respectively on the coil 12 outside half-turn iron core 13 and lower branch iron core 23, on the outer circumference surface of first circle epoxy package 11 and lower branch epoxy package 21, be all provided with the groove of half-turn, bandage 7 is arranged in groove, and lock with tie down screw 4 in the joint of bandage 7, first circle epoxy package 11 is provided with the earth terminal 16 being connected with coil 12 and the coil tap 17 being connected with cable sheath with outside lower branch epoxy package 21, bearing 3 is arranged on lower branch epoxy package 21.
In order to make this compensation arrangement possess better adaptive capacity, the quantity of coil tap 17 is set to 5, respectively corresponding different coil turns.Adopt 5 taps corresponding different coil turns respectively, thereby the compensation performance of adjusting device improves the adaptive capacity of this device.
This device is in the time designing for the cable of 110KV, respectively the parameters of device is carried out calculating subtly, the total number of turns of coil 12 is 120 circles the most at last, and is divided into four layers on annular core, and the number of turn of each layer is respectively 34 circles, 32 circles, 28 circles and 26 circles from inside to outside; 5 taps of the coil tap 17 respectively number of turns number of turn of correspondence are 80 circles, 90 circles, 100 circles, 110 circles and 120 circles; The internal diameter of upper half-turn iron core 13 and lower branch iron core 23 is all 210mm, and external diameter is all 260mm, and sectional area is 1250mm
2.
This device when mounted, first by separately lower branch iron core winding 2 of upper half-turn iron core winding 1, remerge and be arranged on cable 14, and joint setting therein separates the insulating paper 6 of half-turn iron core 13 and lower branch iron core 23, upper half-turn iron core 13 is connected with lower branch iron core 23 at another joint with flat type copper wire 5 again, be arranged in groove with bandage 7 again, and the tie down screw 4 of joint by bandage 7 is locked, and then earth terminal 16 is connected with earth connection, coil tap 17 is connected with cable sheath, finally bearing 3 is arranged on lower branch epoxy package 21, make cable 14 just be positioned at the center of annular core.In the time that the compensation performance of this device is regulated, thereby the insulating paper of replaceable different-thickness 6 changes the air gap thickness between upper half-turn iron core 13 and lower branch iron core 23, carry out the compensation performance of adjusting device, also can change by changing different coil tap 17 coil turn of access, thus the compensation performance of adjusting device.
Claims (5)
1. a high-tension cable shield circulating current compensation arrangement, it is characterized in that: comprise half-turn iron core winding (1), lower branch iron core winding (2), bearing (3) and bandage (7), described upper half-turn iron core winding (1) comprises half-turn iron core (13) and first circle epoxy package (11), described lower branch iron core winding (2) comprises lower branch iron core (23) and lower branch epoxy package (21), described upper half-turn iron core (13) and lower branch iron core (23) docking become an annular core, and be provided with the flat type copper wire (5) of half-turn iron core (13) and lower branch iron core (23) in connection at a joint, be provided with the insulating paper (6) that separates half-turn iron core (13) and lower branch iron core (23) at another joint, on described annular core, be wound with coil (12), described first circle epoxy package (11) and lower branch epoxy package (21) are wrapped in respectively on the coil (12) outside half-turn iron core (13) and lower branch iron core (23), on the outer circumference surface of described first circle epoxy package (11) and lower branch epoxy package (21), be all provided with the groove of half-turn, described bandage (7) is arranged in groove, and lock at the tie down screw for joint (4) of bandage (7), described first encloses epoxy package (11) and outside lower branch epoxy package (21), is provided with the earth terminal (16) being connected with coil (12) and the coil tap (17) being connected with cable sheath, described bearing (3) is arranged on lower branch epoxy package (21).
2. high-tension cable shield circulating current compensation arrangement according to claim 1, is characterized in that: the quantity of described coil tap (17) is 5, respectively corresponding different coil turns.
3. high-tension cable shield circulating current compensation arrangement according to claim 1, it is characterized in that: the total number of turns of described coil (12) is 120 circles, and be divided into four layers on annular core, the number of turn of each layer is respectively 34 circles, 32 circles, 28 circles and 26 circles from inside to outside.
4. high-tension cable shield circulating current compensation arrangement according to claim 2, is characterized in that: 5 taps of described coil tap (17) the respectively number of turns number of turn of correspondence are 80 circles, 90 circles, 100 circles, 110 circles and 120 circles.
5. high-tension cable shield circulating current compensation arrangement according to claim 1, is characterized in that: the internal diameter of described upper half-turn iron core (13) and lower branch iron core (23) is all 210mm, and external diameter is all 260mm, and sectional area is 1250mm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234383.4U CN203826894U (en) | 2014-05-08 | 2014-05-08 | High voltage cable sheath circulating current compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234383.4U CN203826894U (en) | 2014-05-08 | 2014-05-08 | High voltage cable sheath circulating current compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826894U true CN203826894U (en) | 2014-09-10 |
Family
ID=51482358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420234383.4U Expired - Lifetime CN203826894U (en) | 2014-05-08 | 2014-05-08 | High voltage cable sheath circulating current compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956698A (en) * | 2014-05-08 | 2014-07-30 | 国家电网公司 | High-voltage cable sheath loop current compensation device |
| CN111525753A (en) * | 2020-05-12 | 2020-08-11 | 南京中车浦镇海泰制动设备有限公司 | Manufacturing process of braking magnetic pole for linear eddy current braking device |
-
2014
- 2014-05-08 CN CN201420234383.4U patent/CN203826894U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956698A (en) * | 2014-05-08 | 2014-07-30 | 国家电网公司 | High-voltage cable sheath loop current compensation device |
| CN111525753A (en) * | 2020-05-12 | 2020-08-11 | 南京中车浦镇海泰制动设备有限公司 | Manufacturing process of braking magnetic pole for linear eddy current braking device |
| CN111525753B (en) * | 2020-05-12 | 2022-07-29 | 南京中车浦镇海泰制动设备有限公司 | Manufacturing process of braking magnetic pole for linear eddy current braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |