CN205583669U - High tension cable metallic sheath circulation current limiting device - Google Patents
High tension cable metallic sheath circulation current limiting device Download PDFInfo
- Publication number
- CN205583669U CN205583669U CN201620178691.9U CN201620178691U CN205583669U CN 205583669 U CN205583669 U CN 205583669U CN 201620178691 U CN201620178691 U CN 201620178691U CN 205583669 U CN205583669 U CN 205583669U
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- China
- Prior art keywords
- copper bar
- circulation current
- limiting apparatus
- metal sheath
- voltage cable
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- 239000000463 material Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 77
- 229910052802 copper Inorganic materials 0.000 claims description 50
- 239000010949 copper Substances 0.000 claims description 50
- 239000004593 Epoxy Substances 0.000 claims description 36
- 238000009413 insulation Methods 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 5
- 230000005291 magnetic effect Effects 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000000945 filler Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a high tension cable metallic sheath circulation current limiting device, including first external subassembly, the external subassembly of second, insulating cylinder, filler material and annular inductance, the insulating cylinder includes mounting plate, insulating cylinder wall and bottom plate, mounting plate and bottom plate setting are on the insulating cylinder wall, the external subassembly of first external subassembly and second sets up respectively on mounting plate and bottom plate surface, the filler material is filled in the insulating cylinder cavity, the setting of annular inductance is just filled by the filler material in the insulating cylinder cavity, the utility model discloses the influence of annular electric current in the cable metallic sheath has been reduced.
Description
Technical field
The present invention relates to power supply technique field, particularly relate to a kind of high-voltage cable metal sheath circulation current-limiting apparatus.
Background technology
When sheath of hv cable layer two ends all ground connection, a path will be formed with the earth, thus produce grounding circulation.Restrictive coating earthing mode was the most at that time, this circulation size even can reach core electric current 50% or higher so that produce substantial amounts of loss on metal sheath, have impact on the current-carrying capacity of cable, and make cable insulation accelerated ageing, the safe operation of serious threat power supply circuits.
Summary of the invention
It is an object of the invention to, for the problems referred to above, propose a kind of high-voltage cable metal sheath circulation current-limiting apparatus, to reduce the ring current impact on cable.
For achieving the above object, the technical solution used in the present invention is:
A kind of high-voltage cable metal sheath circulation current-limiting apparatus, it is characterized in that, including the first external module, the second external module, insulating cylinder, packing material and ring-shaped inductors, described insulating cylinder includes mounting plate, insulation barrel and bottom plate, and described mounting plate and bottom plate are arranged on insulation barrel；Described first external module and the second external module are separately positioned on mounting plate and bottom plate outer surface；Described packing material is filled in insulating cylinder cavity；Described ring-shaped inductors is arranged in insulating cylinder cavity, and is filled material filling.
Further, horizontally and vertically symmetrical about insulation barrel of described mounting plate and bottom plate；Horizontally and vertically symmetrical about insulation barrel of described first external module and the second external module；Described ring-shaped inductors is about the horizontally and vertically symmetry of insulation barrel.
Further, described ring-shaped inductors includes annular core, flat type copper wire, copper bar and epoxy plate, described flat type copper wire is wrapped on the outer surface of annular core, described epoxy plate includes the first epoxy plate and the second epoxy plate, described first epoxy plate and the second epoxy plate are with the transverse axis of annular core as axis of symmetry, symmetry is fixed on annular core outer surface, described copper bar includes copper bar and lower copper bar, the side of upper copper bar is fixing with the first epoxy plate to be connected, the side of lower copper bar is fixing with the second epoxy plate to be connected, first end of described upper copper bar is connected with the top wire outlet end of flat type copper wire, first end of described lower copper bar is connected with the lower section leading-out terminal of flat type copper wire.
Further, described first external module include first cold pressing pipe and the first screw rod, described second external module include second cold pressing pipe and the second screw rod, described first screw rod one end by first cold pressing pipe be connected with the second end of upper copper bar；The other end of described first screw rod is reserved port with extraneous grounding box and is connected；Described second screw rod is colded pressing to manage by second and is connected with the second end of lower copper bar；The other end of described second screw rod is reserved port with extraneous grounding box and is connected；
Further, described packing material is epoxy resin.
Further, described insulating cylinder is one-shot forming epoxy insulation cylinder.
Further, described annular core is made up of the cold rolled silicon steel material that thickness is 0.3mm low iron loss height magnetic conduction.
Further, described flat type copper wire is the bag flat type copper wire of glass fiber.
Further, the number of turn of flat type copper wire winding annular core outer surface is at least 30 circles.
Further, the width of described first epoxy plate is identical with the width of upper copper bar, and the width of described second epoxy plate is identical with the width of lower copper bar, and described upper copper bar is identical with the width of lower copper bar.
Technical scheme has the advantages that
By the analytical calculation that the circulation of cable metal sheath is correlated with, develop circulation current-limiting apparatus, and this current-limiting apparatus is installed in the cross interconnected case of high tension cable or grounding box, increase resistance value in supply line, thus reduce circuit medium ring flow valuve, and in certain supply line of power supply administration, run use, demonstrate this circulation current-limiting apparatus and can effectively reduce the size of circulation, reduce line loss, ensure circuit safe and reliable operation.Apparatus structure is simple, easy to connect, dependable performance and can limit the current-limiting apparatus of high-voltage cable metal sheath circulation very well.Therefore it is a kind of economic and practical novel current-limiting apparatus.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is high-voltage cable metal sheath circulation current-limiting apparatus sectional view of the present utility model；
Fig. 2 is this utility model induction structure schematic diagram；
In conjunction with accompanying drawing, in this utility model embodiment, reference is as follows.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of high-voltage cable metal sheath circulation current-limiting apparatus, including the first external module, the second external module, insulating cylinder, packing material and ring-shaped inductors, described insulating cylinder includes mounting plate, insulation barrel and bottom plate, and described mounting plate and bottom plate are arranged on insulation barrel；Described first external module and the second external module are separately positioned on mounting plate and bottom plate outer surface；Described packing material is filled in insulating cylinder cavity；Described ring-shaped inductors is arranged in insulating cylinder cavity, and is filled material filling.
Packing material in the present embodiment is epoxy resin, it is simple to fixing of internal each device, and heat radiation is preferably；Insulating cylinder uses thermal diffusivity good, has good insulating properties and security performance；
Horizontally and vertically symmetrical about insulation barrel of described mounting plate and bottom plate；Horizontally and vertically symmetrical about insulation barrel of described first external module and the second external module；Described ring-shaped inductors is about the horizontally and vertically symmetry of insulation barrel；Described packing material is epoxy resin；Described insulating cylinder is one-shot forming epoxy insulation cylinder, uses one-shot forming epoxy insulation cylinder, and thermal diffusivity is good, has good insulating properties and security performance；
As shown in Figure 2, ring-shaped inductors includes annular core, flat type copper wire, copper bar and epoxy plate, described flat type copper wire is wrapped on the outer surface of annular core, described epoxy plate includes the first epoxy plate and the second epoxy plate, described first epoxy plate and the second epoxy plate are with the transverse axis of annular core as axis of symmetry, symmetry is fixed on annular core outer surface, described copper bar includes copper bar and lower copper bar, the side of upper copper bar is fixing with the first epoxy plate to be connected, the side of lower copper bar is fixing with the second epoxy plate to be connected, first end of described upper copper bar is connected with the top wire outlet end of flat type copper wire, first end of described lower copper bar is connected with the lower section leading-out terminal of flat type copper wire；First external module include first cold pressing pipe and the first screw rod, described second external module include second cold pressing pipe and the second screw rod, described first screw rod one end by first cold pressing pipe be connected with the second end of upper copper bar；The other end of described first screw rod is reserved port with extraneous grounding box and is connected；Described second screw rod is colded pressing to manage by second and is connected with the second end of lower copper bar；The other end of described second screw rod is reserved port with extraneous grounding box and is connected；Described flat type copper wire is the bag flat type copper wire of glass fiber；Described flat type copper wire is wound around the number of turn of annular core outer surface and is at least 30 circles；The width of described first epoxy plate is identical with the width of upper copper bar, and the width of described second epoxy plate is identical with the width of lower copper bar, and described upper copper bar is identical with the width of lower copper bar.
Flat type copper wire uses glass fiber bag flat type copper wire, from tape insulation, can be prevented effectively between line and line and draw the short circuit that abrasion causes；And flat type copper wire is prone to be wound around, easy to operate, and the sectional area of solid conductor is big, and current capacity is strong；
Copper bar uses 2 × 10 flat type copper wires, length about 3, is respectively arranged with one section up and down, is conveniently connected with extraction bolt.
Described epoxy plate uses identical with described copper bar width, and moderate length, is used for fixing between copper bar and upper and lower screw rod being reliably connected；
Epoxy plate is fixing for upper and lower copper bar, copper bar for draw galvanized bolt up and down and weld；External module 1 is made up of M10 × 50 galvanized bolt, galvanized washer and galvanized iron spring packing ring.The screwed hole reserved with on copper bar in grounding box is attached, during installation by galvanized bolt, it is to be ensured that fastening, does not loosens.
The making of inductance, glass fiber bag flat type copper wire is wound on circular iron core, ensure that flat type copper wire is pressed close to as far as possible with core exterior surface, and circle keeps the most uniformly with turn-to-turn, the number of turn must not be less than 30 circles, many as far as possible around, to increase inductance value, but around during be careful not to destroy flat type copper wire external insulation, if destroyed; would need to carry out insulation processing.
Then according to produce the size of inductance above, determine the size of insulating cylinder；X direction: have between internal diameter and the external diameter of inductance of insulation 10 reserved；Y direction: reserve 300 between upper and lower surface and the inwall of mounting plate of inductance, it is simple to welding between inductive connection with external module, and ensure galvanized bolt horizontal vertical, must not have inclination.After good to upper and lower galvanized bolt and welding copper bus, inductance be positioned on insulating cylinder bottom plate, pour into a mould with packing material, after sufficiently cooling, cover mounting plate, and screw.The last coating spraying respective color at insulating cylinder 2 outer wall, after coating dries, is attached to above by the nameplate identified with current-limiting apparatus title, specification, numbering etc., completes the making of current-limiting apparatus.
Annular core uses circular iron core to be the cold-rolled orientation high quality silicon Steel material using thickness to be 0.3 low iron loss height magnetic conduction, wherein ascending again to little by one, continuously direction, curve strip paramagnetic road winding forms, and cross section is circular, and window is circular, magnetic circuit is of completely closed, magnetic leakage free, power capacity is big, it is not necessary to skeleton may utilize loop wire winder coiling, coiling is quick and convenient, and production efficiency is high.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a high-voltage cable metal sheath circulation current-limiting apparatus, it is characterized in that, including the first external module, the second external module, insulating cylinder, packing material and ring-shaped inductors, described insulating cylinder includes mounting plate, insulation barrel and bottom plate, and described mounting plate and bottom plate are arranged on insulation barrel；Described first external module and the second external module are separately positioned on mounting plate and bottom plate outer surface；Described packing material is filled in insulating cylinder cavity；Described ring-shaped inductors is arranged in insulating cylinder cavity, and is filled material filling.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 1, it is characterised in that horizontally and vertically symmetrical about insulation barrel of described mounting plate and bottom plate；Horizontally and vertically symmetrical about insulation barrel of described first external module and the second external module；Described ring-shaped inductors is about the horizontally and vertically symmetry of insulation barrel.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 2, it is characterized in that, described ring-shaped inductors includes annular core, flat type copper wire, copper bar and epoxy plate, described flat type copper wire is wrapped on the outer surface of annular core, described epoxy plate includes the first epoxy plate and the second epoxy plate, described first epoxy plate and the second epoxy plate are with the transverse axis of annular core as axis of symmetry, symmetry is fixed on annular core outer surface, described copper bar includes copper bar and lower copper bar, the side of upper copper bar is fixing with the first epoxy plate to be connected, the side of lower copper bar is fixing with the second epoxy plate to be connected, first end of described upper copper bar is connected with the top wire outlet end of flat type copper wire, first end of described lower copper bar is connected with the lower section leading-out terminal of flat type copper wire.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 3, it is characterized in that, described first external module include first cold pressing pipe and the first screw rod, described second external module include second cold pressing pipe and the second screw rod, described first screw rod one end by first cold pressing pipe be connected with the second end of upper copper bar；The other end of described first screw rod is reserved port with extraneous grounding box and is connected；Described second screw rod is colded pressing to manage by second and is connected with the second end of lower copper bar；The other end of described second screw rod is reserved port with extraneous grounding box and is connected.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 4, it is characterised in that described packing material is epoxy resin.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 5, it is characterised in that described insulating cylinder is one-shot forming epoxy insulation cylinder.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 6, it is characterised in that described annular core is made up of the cold rolled silicon steel material that thickness is 0.3mm low iron loss height magnetic conduction.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 7, it is characterised in that described flat type copper wire is the bag flat type copper wire of glass fiber.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 8, it is characterised in that flat type copper wire is wound around the number of turn of annular core outer surface and is at least 30 circles.
High-voltage cable metal sheath circulation current-limiting apparatus the most according to claim 9, it is characterized in that, the width of described first epoxy plate is identical with the width of upper copper bar, and the width of described second epoxy plate is identical with the width of lower copper bar, and described upper copper bar is identical with the width of lower copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178691.9U CN205583669U (en) | 2016-03-09 | 2016-03-09 | High tension cable metallic sheath circulation current limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178691.9U CN205583669U (en) | 2016-03-09 | 2016-03-09 | High tension cable metallic sheath circulation current limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583669U true CN205583669U (en) | 2016-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620178691.9U Active CN205583669U (en) | 2016-03-09 | 2016-03-09 | High tension cable metallic sheath circulation current limiting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205583669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210967A (en) * | 2020-02-17 | 2020-05-29 | 金云云 | Novel step-down transformer capable of adapting to high-voltage environment |
-
2016
- 2016-03-09 CN CN201620178691.9U patent/CN205583669U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210967A (en) * | 2020-02-17 | 2020-05-29 | 金云云 | Novel step-down transformer capable of adapting to high-voltage environment |
| CN111210967B (en) * | 2020-02-17 | 2021-04-23 | 金云云 | Step-down transformer capable of adapting to high-voltage environment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |