CN203588747U - Medium-voltage variable frequency cable - Google Patents
Medium-voltage variable frequency cable Download PDFInfo
- Publication number
- CN203588747U CN203588747U CN201320777649.5U CN201320777649U CN203588747U CN 203588747 U CN203588747 U CN 203588747U CN 201320777649 U CN201320777649 U CN 201320777649U CN 203588747 U CN203588747 U CN 203588747U
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- China
- Prior art keywords
- voltage converter
- medium voltage
- conductor
- cable according
- auxiliary
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- 239000004020 conductor Substances 0.000 claims abstract description 35
- 239000004677 Nylon Substances 0.000 claims abstract description 16
- 229920001778 nylon Polymers 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000009954 braiding Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Abstract
The utility model discloses a medium-voltage variable frequency cable comprising primary conductors, conductor shielding layers, insulating layers, insulated shielding layers, semiconductive nylon tapes, inner braiding shielding layers, and secondary conductors. The conductor shielding layers, the insulating layers, the insulated shielding layers, the semiconductive nylon tapes, and the inner braiding shielding layers successively coat the outsides of the primary conductors. The gap between the primary conductors and the secondary conductors is filled with fillers; the primary conductors, the secondary conductors, and the fillers are processed by a cabling twisting way; and the integrated twisted unit is coated with a wrapping layer; the outside of the wrapping layer is coated with an outer braiding shielding layer; and the outside of the outer braiding shielding layer is coated with an outer sheath. According to the cable, the outsides of the primary conductors are coated with the conductor shielding layers, the insulating layers, the insulated shielding layers, the semiconductive nylon tapes, and the inner braiding shielding layers, so that the good electromagnetic compatibility is realized and the interference can be suppressed; the odd harmonic in the low-efficient higher harmonic can be shielded; the anti-interference property of the cable can be enhanced; and the high-frequency shaft current generation can be effectively prevented. In addition, the variable frequency cable with the voltage of 6KV to 10 KV can be used.
Description
Technical field
The utility model belongs to cable technology field, is specifically related to the medium voltage converter cable of a kind of 6KV of being applicable to～10KV.
Background technology
Frequency converter timing technology is the high-tech technology that integrates the technology such as automatic control, microelectronics, power electronics, communication.It,, with good speed governing, energy-efficient performance, obtains a wide range of applications in all trades and professions.Frequency converter timing device is that inlet wire industrial-frequency alternating current is transformed into direct current through rectifying and wave-filtering, direct current being modulated into variable-frequency AC wave transmits electricity again, because it adopts soft start, can reduce the mechanical shock of equipment and motor, the useful life of extension device and motor.
In frequency conversion system, feeder cable particularly choosing with the problem of electromagnetic compatibility of frequency converter output cable more and more comes into one's own.From the viewpoint of electromagnetic emission and susceptibility two aspects, feeder cable line plays a part transmitting antenna on the one hand, plays a part again reception antenna, thereby becomes an important ring of frequency conversion system radiation-sensitive degree.Because the electrical power of frequency converter output is often larger, frequency spectrum is wider, and the distributed capacitance of cable provides coupling path for transmitting electromagnetic interference voltage and disturbance current.The inverter of frequency converter adopts PWM technology mostly, when it works in switching mode and does to switch at a high speed, produce a large amount of coupling noises, this near-field coupling being caused by power cable by frequency converter often becomes the potential threat of nearby device with crosstalking, and power cable originally also can produce the loss of electric energy when transmission frequency conversion power simultaneously.
In view of the foregoing, only according to conventional cable choosing method, if electric pressure, system of laying and ampacity are far from being enough, also should take in from factors such as the wave distortion of voltage or electric current, electromagnetic interference, distributed capacitance, wave impedance, special converter output cable is used in design comprehensively.
Utility model content
The purpose of this utility model is to provide the medium voltage converter cable of a kind of 6KV of can be used for～10KV, and this frequency-changing cable adopts multilayer screen and insulation to leading body, disturbs avoiding between leading body.
The utility model is taked following technical scheme:
A medium voltage converter cable, comprises leading body, and is coated on successively conductor shield, insulating barrier, insulation screen, semiconductive nylon tape, interior woven shield outside leading body; Auxiliary-conductor; Space between leading body and auxiliary-conductor adopts filler to fill, and leading body, auxiliary-conductor and filler are stranded by stranding, and coated lapping layer, the outer woven shield of lapping layer outer cladding, outer woven shield outer cladding oversheath.
Further technical scheme is: described auxiliary-conductor is coated with insulating barrier.
Further technical scheme is: 0.4～0.6 times of the core nominal cross that the core cross section sum of three auxiliary-conductors is single leading body.
Further technical scheme is: described leading body and the core of auxiliary-conductor are soft copper, the 5th kind of GB/T3956-2008.
Further technical scheme is: described filler is rubber strip.
Further technical scheme is: described insulating barrier is ethylene propylene diene rubber.
Further technical scheme is: described interior woven shield and outer woven shield are interwoven by tinned copper wire and nylon yarn, copper wire area coverage >=80%.
Further technical scheme is: on described nylon yarn, with color separation, identify.
Further technical scheme is: the material of described lapping layer is polyester belt.
The utility model compared with prior art, has following beneficial effect:
(1) leading body outer cladding conductor shield, insulating barrier, insulation screen, semiconductive nylon tape, interior woven shield, there is preferably Electro Magnetic Compatibility, can suppress to disturb, and can shield the odd harmonic in poor efficiency high order harmonic component, improve the anti-interference of cable; Can effectively prevent the generation of high frequency shaft current.This cable can be used the frequency-changing cable of 6KV～10KV.
(2) the utility model is filled and is adopted rubber to fill, and core is soft copper material, and whole cable is soft structure, is more conducive to crane span structure.
(3) adopt interior woven shield and outer woven shield to be coated cable; woven shield is that tinned copper wire and nylon yarn braiding form; there is good oil resistant and corrosion-resistant effect, simultaneously because nylon yarn has good pull resistance and then can protect preferably core.
(4) show after testing to meet completely in the time of-40～+ 90 ℃ and normally move, can be widely used in various environment.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the utility model medium voltage converter cable;
1-leading body wherein; 2-conductor shield; 3-insulating barrier; 4-insulation screen; 5-semiconductive nylon tape; 6-interior woven shield; 7-auxiliary-conductor; 8-filler; 9-lapping layer; 10-outer woven shield; 11-oversheath.
Embodiment
Below in conjunction with drawings and Examples of the present utility model, to of the present utility model, be further described and explain, so that the technical solution of the utility model is more clear.
Fig. 1 shows the structural representation of an embodiment of the utility model, as can be seen from the figure: a kind of medium voltage converter cable, comprise leading body 1, and be coated on successively conductor shield 2, insulating barrier 3, insulation screen 4, semiconductive nylon tape 5, interior woven shield 6 outside leading body 1; Auxiliary-conductor 7; Space between leading body 1 and auxiliary-conductor 7 adopts filler 8 to fill, and leading body, auxiliary-conductor 7 and filler 8 are stranded by stranding, and coated lapping layer 9, the outer woven shield 10 of lapping layer 9 outer claddings, outer woven shield 10 outer cladding oversheaths 11.
According to an embodiment of the present utility model, described auxiliary-conductor 7 is coated with insulating barrier.
According to an embodiment of the present utility model, 0.4～0.6 times of the core nominal cross that the core cross section sum of three auxiliary-conductors is single leading body.
According to an embodiment of the present utility model, described leading body 1 and the core of auxiliary-conductor 7 are soft copper.
According to an embodiment of the present utility model, described filler 8 is rubber strip.
According to an embodiment of the present utility model, described insulating barrier 3 is ethylene propylene diene rubber.
According to an embodiment of the present utility model, described interior woven shield 6 and outer woven shield 10 are interwoven by tinned copper wire and nylon yarn, copper wire area coverage >=80%.
According to an embodiment of the present utility model, on described nylon yarn, with color separation, identify.
According to an embodiment of the present utility model, the material of described lapping layer 9 is polyester belt.
According to an embodiment of the present utility model, the material of described oversheath 11 is polyurethane.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment " etc., the specific features, structure or the feature that refer in conjunction with this embodiment description are included at least one embodiment of the application's generality description.In specification, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although the utility model is described with reference to a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and within execution mode will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (10)
1. a medium voltage converter cable, it is characterized in that comprising three leading bodies (1), and be coated on successively leading body (1) outer conductor shield (2), insulating barrier (3), insulation screen (4), semiconductive nylon tape (5), interior woven shield (6); Three auxiliary-conductors (7); Space between leading body (1) and auxiliary-conductor (7) adopts filler (8) to fill, leading body (1), auxiliary-conductor (7) and filler (8) are stranded by stranding, and coated lapping layer (9), the outer woven shield (10) of lapping layer (9) outer cladding, outer woven shield (10) outer cladding oversheath (11).
2. medium voltage converter cable according to claim 1, is characterized in that: described auxiliary-conductor (7) is coated with insulating barrier.
3. medium voltage converter cable according to claim 1 and 2, is characterized in that: 0.4～0.6 times of the core nominal cross that the core cross section sum of three auxiliary-conductors is single leading body.
4. medium voltage converter cable according to claim 1, is characterized in that: the core of described leading body (1) and auxiliary-conductor (7) is soft copper.
5. medium voltage converter cable according to claim 1, is characterized in that: described filler (8) is rubber strip.
6. medium voltage converter cable according to claim 1, is characterized in that: described insulating barrier (3) is ethylene propylene diene rubber.
7. medium voltage converter cable according to claim 1, is characterized in that: described interior woven shield (6) and outer woven shield (10) are interwoven by tinned copper wire and nylon yarn, copper wire area coverage >=80%.
8. medium voltage converter cable according to claim 7, is characterized in that: on described nylon yarn, with color separation, identify.
9. medium voltage converter cable according to claim 1, is characterized in that: the material of described lapping layer (9) is polyester belt.
10. medium voltage converter cable according to claim 1, is characterized in that: the material of described oversheath (11) is polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777649.5U CN203588747U (en) | 2013-11-29 | 2013-11-29 | Medium-voltage variable frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777649.5U CN203588747U (en) | 2013-11-29 | 2013-11-29 | Medium-voltage variable frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203588747U true CN203588747U (en) | 2014-05-07 |
Family
ID=50586623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320777649.5U Expired - Lifetime CN203588747U (en) | 2013-11-29 | 2013-11-29 | Medium-voltage variable frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203588747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992033A (en) * | 2017-04-27 | 2017-07-28 | 威海市泓淋电子有限公司 | A kind of light-duty welding torch cable and preparation method |
| CN108447602A (en) * | 2018-04-25 | 2018-08-24 | 四川鑫电电缆有限公司 | The fire-retardant three cores midium voltage cable of temperature-sensitive tension |
-
2013
- 2013-11-29 CN CN201320777649.5U patent/CN203588747U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992033A (en) * | 2017-04-27 | 2017-07-28 | 威海市泓淋电子有限公司 | A kind of light-duty welding torch cable and preparation method |
| CN108447602A (en) * | 2018-04-25 | 2018-08-24 | 四川鑫电电缆有限公司 | The fire-retardant three cores midium voltage cable of temperature-sensitive tension |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |