CN203882673U - Special cable for frequency converter - Google Patents
Special cable for frequency converter Download PDFInfo
- Publication number
- CN203882673U CN203882673U CN201420281476.2U CN201420281476U CN203882673U CN 203882673 U CN203882673 U CN 203882673U CN 201420281476 U CN201420281476 U CN 201420281476U CN 203882673 U CN203882673 U CN 203882673U
- Authority
- CN
- China
- Prior art keywords
- cable
- frequency converter
- core
- sheath
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000004698 Polyethylene (PE) Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 230000002194 synthesizing Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 6
- 238000005191 phase separation Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000002035 prolonged Effects 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 230000000644 propagated Effects 0.000 description 1
Abstract
The utility model discloses a special cable for a frequency converter. At least three wire cores form a coaxial structure; phase separation of each wire core is realized through a phase separation sheath located at the exterior of the wire core; three phases of coaxial wires are stranded and cabled; a cabling filler is wrapped with a wrapping tape so as to be round; the cabling wrapping tape is wrapped with a composite tape shielding wrapping layer; the composite tape shielding wrapping layer is wrapped with a lining layer and an armoring layer sequentially; a current guiding line is additionally arranged between the composite tape shielding wrapping layer and the lining layer; a wrapped protective layer is provided with a sheath; and therefore, the cable can be formed. The cable has excellent electromagnetic compatibility and bending performance. With the special cable for the frequency converter adopted, transmission of higher harmonic can be effectively suppressed, and the service lives of the cable and motor equipment can be prolonged.
Description
Technical field:
The utility model relates to a kind of private cable, is specially adapted to use on frequency conversion system.
Background technology:
Converter technique has efficiently, energy-conservation superiority, become the strong approach that improves energy efficiency and improve capability of engineering equipment, but because the voltage waveform of frequency converter output contains a large amount of harmonic componentss, to electric power system, load motor and other contiguous electric equipments can produce interference, especially at the high-precision meter higher to interference requirement, the harmonic wave interference problems such as computer control system are particularly outstanding, high order harmonic component is propagated in cable simultaneously, form overvoltage and easily cause that cable and Electric Power Equipment Insulation puncture, the disclosed patent of State Patent Office, name is called " Special cable for frequency converter ", application number 201310382563.7, it is characterized in that: comprise three master core unit and three ground wire core units, described master core unit comprises that master core is coated on the master core insulating barrier of master core outside, master core screen, described ground wire core unit comprises ground core and is coated on the ground wire core insulation layer of core outside, ground, ground conductor screen, the outside of described master core unit and ground wire core unit is disposed with lapping layer, internal shield, inner restrictive coating, outer shielding layer and jacket layer.Although this structure has improved the symmetry of cable, reduced electromagnetic disturbance level, but owing to there being distributed capacitance between cable core, master core, variation and the eccentricity issues of 6 cores of core meter twisting pitch when stranded, must cause alternate asymmetric of cable core, and easily cause Electro Magnetic Compatibility to reduce.
Summary of the invention:
Task of the present utility model is that a kind of symmetry of proposition is good, and mutual capacitance is little, the Special cable for frequency converter that anti-electromagnetic interference is effective.
Task of the present utility model completes like this, Special cable for frequency converter, it is characterized in that: at least three above formation coaxial configurations of core, each core external application phase-splitting divides cover phase-splitting, it is wrapped circular through band that three same axis core twisted synthesizing cables are filled stranding, and described stranding band external application composite band shielding holds, then by armour, is held after extruding by inner covering, between described composite band shielding and inner covering, add drainage thread, the sheath after holding installs sheath outward additional and forms cable.Described core is to consist of conductor, insulating barrier and metal screen layer, is coated with insulating barrier on conductor, is surrounded with metal screen layer on insulating barrier.Conductor is that employing copper or aluminium alloy are stranded, described insulating barrier adopts crosslinked polyethylene, and described metal screen layer adopts proof copper-wire braided and copper strips, and described phase-splitting sheath adopts PE phase-splitting sheath, described armour adopts novel aluminum alloy linkage structure, and cross section is ∽ shape.
The utlity model has following effect: this construction of cable has good Electro Magnetic Compatibility, excellent bending property, suppresses the propagation of high order harmonic component effectively, has improved the life-span of cable and motor device.
Accompanying drawing explanation:
Fig. 1 is the structural representation of utility model.
Drawing explanation: 1, conductor, 2, insulating barrier, 3, metal screen layer, 4, phase-splitting sheath, 5, stranding fills, 6, drainage thread, 7, stranding band, 8, composite band shielding, 9, inner covering, 10, armour, 11, sheath.
Embodiment:
What the technical program adopted is three core symmetric coaxial core structures, this symmetrical configuration and interchangeability are good, can reduce harmonic wave overvoltage level, as shown in Figure 1, core is by conductor 1, insulating barrier 2 and metal screen layer 3 form, on conductor 1, be coated with insulating barrier 2, on insulating barrier, be surrounded with the double neutral line of doing of metal screen layer 3(), three cores are formed to coaxial configuration, each core external application phase-splitting divides cover 4 phase-splittings, three same axis core twisted synthesizing cables, by stranding, fill 5 and be filled to circular rear wrapped stranding band 7, described stranding band 7 external application composite band shieldings 8 hold, between described composite band shielding 8 and inner covering 9, add drainage thread 6, after extruding by inner covering 9 again, by armour 10, held, sheath after holding installs sheath 11 outward additional and forms cable.
Described conductor 1 is that employing copper or aluminium alloy are stranded; described insulating barrier 2 adopts crosslinked polyethylene; described metal screen layer 4 adopts proof copper-wire braided and the wrapped composite construction of copper strips; described phase-splitting sheath 4 adopts PE phase-splitting sheath; described armour 9 adopts novel aluminum alloy linkage structure; the effect of existing certain shielding, cross section is ∽ shape, has good mechanical protection effect and excellent crooked and and pull travelling performance.
Claims (3)
1. Special cable for frequency converter, it is characterized in that: at least three above formation coaxial configurations of core, each core external application phase-splitting divides cover phase-splitting, it is wrapped circular through band that three same axis core twisted synthesizing cables are filled stranding, described stranding band external application composite band shielding holds, after extruding by inner covering, by armour, held again, between described composite band shielding and inner covering, add drainage thread, the sheath after holding installs sheath outward additional and forms cable.
2. Special cable for frequency converter according to claim 1, is characterized in that: described core is to consist of conductor, insulating barrier and metal screen layer, is coated with insulating barrier on conductor, is surrounded with metal screen layer on insulating barrier.
3. Special cable for frequency converter according to claim 1 and 2, it is characterized in that: conductor is that employing copper or aluminium alloy are stranded, described insulating barrier adopts crosslinked polyethylene, described metal screen layer adopts proof copper-wire braided and copper strips, described phase-splitting sheath adopts PE phase-splitting sheath, described armour adopts novel aluminum alloy linkage structure, and cross section is ∽ shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281476.2U CN203882673U (en) | 2014-05-29 | 2014-05-29 | Special cable for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281476.2U CN203882673U (en) | 2014-05-29 | 2014-05-29 | Special cable for frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882673U true CN203882673U (en) | 2014-10-15 |
Family
ID=51683148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281476.2U Expired - Fee Related CN203882673U (en) | 2014-05-29 | 2014-05-29 | Special cable for frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021855A (en) * | 2014-05-29 | 2014-09-03 | 河南机电高等专科学校 | Frequency converter special-purpose cable |
-
2014
- 2014-05-29 CN CN201420281476.2U patent/CN203882673U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021855A (en) * | 2014-05-29 | 2014-09-03 | 河南机电高等专科学校 | Frequency converter special-purpose cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Xianfeng Inventor after: Fan Zheng Inventor after: Jiang Weihua Inventor after: Zhang Jing Inventor before: Zheng Xianfeng Inventor before: Fan Zheng Inventor before: Jiang Weihua Inventor before: Zhang Jing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |