CN2824243Y - Main loop cable for frequency changer - Google Patents
Main loop cable for frequency changer Download PDFInfo
- Publication number
- CN2824243Y CN2824243Y CN 200520075324 CN200520075324U CN2824243Y CN 2824243 Y CN2824243 Y CN 2824243Y CN 200520075324 CN200520075324 CN 200520075324 CN 200520075324 U CN200520075324 U CN 200520075324U CN 2824243 Y CN2824243 Y CN 2824243Y
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- copper
- layer
- lapping layer
- shielding
- cable
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Abstract
The utility model relates to a novel main-loop cable for a frequency changer, which belongs to the technical field of a cable. A cabling lapping layer lapped by a high-fire retardant glass-fabric belt is lapped on a cable core cabled by stranding three power wire cores and three control wire cores, filling materials are arranged in a gap between the cable core and the cabling lapping layer on which a copper-belt shielding layer is lapped, a woven shielding layers of copper wires is lapped on a lapping and shielding layer of copper belts, a shielding lapping layer of high-fire retardant glass-fabric belts is lapped on the woven shielding layer of copper wires, and a high-fire retardant polyolefin oversheath is squeezed and packed on a shielding lapping layer. The utility model has the advantages of reasonable structure, easy production manufacture, good service performance, minor insulating dielectric loss, a composite screen mode of double-layer optimization, prevention of strong electromagnetic interference and electrostatic interference prevention. The utility model can be used for installing and connecting lines of frequency and speed control technology of industry aspects such as petroleum, chemical industry, metallurgy, electric power, railways, mines, municipal engineering, etc.
Description
Technical field
The utility model relates to a kind of construction of cable that the frequency converter major loop connects that is used for, and belongs to the cable technology field.
Background technology
The new type inverter main loop cabling is along with applying of converter technique is born.Because the operation characteristic of RHVC, stube cable there is specific (special) requirements, frequency-changing cable provides in converter technique and can satisfy the quality power energy of whole converter technique to demand for control, can improve the interference performance of the anti-external electromagnetic field high order harmonic component of cable, reducing cable body electromagnetic field high order harmonic component pollutes, reduce loss, raise the efficiency.Therefore, along with the application of variable-frequency control technique in industrial aspect such as oil, chemical industry, metallurgy, electric power railway, mine, municipal works, the demand of frequency-changing cable is increasing, requires more and more higher.But, the existing cable that is used for the connection of frequency converter major loop, constitute by the core that insulating barrier is set on the conductor and screen, oversheath, aspects such as its working temperature, anti-strong electromagnetic, anti-strong electrostatic interference and low transmission impedance all can not satisfy the requirement of frequency converter major loop stube cable well, influence applying of converter technique.
The utility model content
The purpose of this utility model is applied needs according to converter technique exactly, by improvement to existing cable, a kind of working temperature height that has is provided, and anti-strong electromagnetic and strong electrostatic interference have the new type inverter main loop cabling of lower effective mutual capacitance and low transmission impedance.
The purpose of this utility model is to realize like this, the new type inverter main loop cabling, comprise core and screen that insulating barrier is set on the conductor, oversheath, it is characterized in that being provided with three power cores, three control cores are twisted into the cable core and the wrapped stranding lapping layer of high flame retardant glass fibre belt of cable, shielding lapping layer and copper strips are wrapped, copper wire weaves two-layer composite shielding layer, the stranding lapping layer is wrapped on cable core, be provided with inserts in the space between cable core and stranding lapping layer, wrapped copper strips screen on the stranding lapping layer, the copper wire woven shield is set on the copper strips lapped shielding layer, wrapped shielding lapping layer on the copper wire woven shield extrudes high flame retardant polyolefin oversheath on the shielding lapping layer.
Described core is that purity reaches on the high-quality copper free wire twisted bundles conductor more than 99.99% and extrudes the IXPE insulating material.Three power cores of the cable core of stranded stranding and three control cores evenly are symmetrical arranged at interval, and twisting pitch equates that the power line core diameter is greater than the control line core diameter.Described copper strips is that copper is moulded band, and the copper face that copper is moulded band outwards closely contacts with the copper wire woven shield.Described inserts is a high flame retardant glass rope.
The utility model is rational in infrastructure, manufactures easily, and serviceability is good, has less insulation dielectric loss, and the composite shielding mode of dual-layer optimization has anti-strong electromagnetic and anti-strong electrostatic interference.The 3+3 cable core project organization of symmetry, equidistantly stranded, thus have lower effective capacitance, than the low transmission impedance, good electromagnetic compatibility can be provided, and construction of cable compactness, rounding, safe in utilization.Can satisfy special-purpose converter cable performance requirement in the frequency changer circuit system engineering construction, and LSZH, the circuit that can be widely used in industrial aspect variable-frequency control techniques such as oil, chemical industry, metallurgy, electric power, railway, mine, municipal works is installed connection.The excellent popularization using value is arranged.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1, conductor; 2, insulating barrier; 3, inserts; 4, stranding lapping layer; 5, copper strips lapped shielding layer; 6, copper wire woven shield; 7, shielding lapping layer; 8, outer jacket.
Embodiment
The high-quality copper free wire twisted bundles that reaches more than 99.99% with purity is a conductor 1, extrudes IXPE insulated with material layer 2 and constitute insulated wire cores on conductor 1.Thoroughly doing away with the edge core with three is that power core and three eradication edge cores are the control core, carries out stranded stranding, wrapped high flame retardant glass fibre belt stranding lapping layer 4 on cable core, raising flame-proof glass fibre rope inserts 3 in the space between cable core and stranding lapping layer.Adopt copper to mould band lapped shielding layer 5 on stranding lapping layer 4, copper is moulded on the band lapped shielding layer 5 copper wire woven shield 6 is set.Copper is moulded the copper of band lapped shielding layer 5 and is moulded moulding towards interior of band and contact with stranding lapping layer 4, copper mould the copper face of band outside with its on the copper wire woven shield 6 of setting closely contact.Wrapped high flame retardant glass fibre belt shielding lapping layer 7 extrudes high flame retardant polyolefin oversheath 8 on shielding lapping layer 7 on copper wire woven shield 6.
Claims (5)
1, a kind of new type inverter main loop cabling, comprise core and screen that insulating barrier is set on the conductor, oversheath, it is characterized in that being provided with three power cores, three control cores are twisted into the cable core and the wrapped stranding lapping layer of high flame retardant glass fibre belt of cable, shielding lapping layer and copper strips are wrapped, copper wire weaves two-layer screen, the stranding lapping layer is wrapped on cable core, be provided with inserts in the space between cable core and stranding lapping layer, wrapped copper strips screen on the stranding lapping layer, the copper wire woven shield is set on the copper strips lapped shielding layer, wrapped shielding lapping layer on the copper wire woven shield extrudes high flame retardant polyolefin oversheath on the shielding lapping layer.
2, new type inverter main loop cabling according to claim 1 is characterized in that described core is that purity reaches on the stranded conductor of high-quality copper free wire more than 99.99%, extrudes the IXPE insulating material.
3, new type inverter main loop cabling according to claim 1 is characterized in that three power cores and three control cores of the cable core of described stranded stranding evenly are provided with at interval, and twisting pitch equates that the power line core diameter is greater than the control line core diameter.
4, new type inverter main loop cabling according to claim 1 is characterized in that described copper strips is that copper is moulded band, and the copper face that copper is moulded band outwards closely contacts with the copper wire woven shield.
5, new type inverter main loop cabling according to claim 1 is characterized in that described inserts is a high flame retardant glass rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075324 CN2824243Y (en) | 2005-09-06 | 2005-09-06 | Main loop cable for frequency changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075324 CN2824243Y (en) | 2005-09-06 | 2005-09-06 | Main loop cable for frequency changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824243Y true CN2824243Y (en) | 2006-10-04 |
Family
ID=37033362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520075324 Expired - Fee Related CN2824243Y (en) | 2005-09-06 | 2005-09-06 | Main loop cable for frequency changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824243Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923916A (en) * | 2010-05-10 | 2010-12-22 | 兴乐集团宁夏电缆有限公司 | Variable frequency power generator cable with control wire core |
| CN102800399A (en) * | 2012-08-27 | 2012-11-28 | 兰州众邦电线电缆集团有限公司 | Halogen-free low-smoke high-flame-resistance control cable and manufacturing method thereof |
| CN102855986A (en) * | 2012-09-13 | 2013-01-02 | 山西太平洋电缆有限公司 | Anti-interference fire-resistant control cable |
| CN103871634A (en) * | 2014-03-01 | 2014-06-18 | 安徽凯博尔特种电缆集团有限公司 | Insulated cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
| CN104103370A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Crosslinked polyethylene insulated copper wire copper strip shielding frequency converter cable |
| CN111326275A (en) * | 2020-03-28 | 2020-06-23 | 远东电缆有限公司 | Safe and environment-friendly composite cable with combustion performance of B1 level and production process thereof |
-
2005
- 2005-09-06 CN CN 200520075324 patent/CN2824243Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923916A (en) * | 2010-05-10 | 2010-12-22 | 兴乐集团宁夏电缆有限公司 | Variable frequency power generator cable with control wire core |
| CN102800399A (en) * | 2012-08-27 | 2012-11-28 | 兰州众邦电线电缆集团有限公司 | Halogen-free low-smoke high-flame-resistance control cable and manufacturing method thereof |
| CN102800399B (en) * | 2012-08-27 | 2014-02-19 | 兰州众邦电线电缆集团有限公司 | Halogen-free low-smoke high-flame-resistance control cable and manufacturing method thereof |
| CN102855986A (en) * | 2012-09-13 | 2013-01-02 | 山西太平洋电缆有限公司 | Anti-interference fire-resistant control cable |
| CN104103370A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Crosslinked polyethylene insulated copper wire copper strip shielding frequency converter cable |
| CN103871634A (en) * | 2014-03-01 | 2014-06-18 | 安徽凯博尔特种电缆集团有限公司 | Insulated cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
| CN111326275A (en) * | 2020-03-28 | 2020-06-23 | 远东电缆有限公司 | Safe and environment-friendly composite cable with combustion performance of B1 level and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |