CN201689734U - Variable frequency power cable - Google Patents
Variable frequency power cable Download PDFInfo
- Publication number
- CN201689734U CN201689734U CN2010201962449U CN201020196244U CN201689734U CN 201689734 U CN201689734 U CN 201689734U CN 2010201962449 U CN2010201962449 U CN 2010201962449U CN 201020196244 U CN201020196244 U CN 201020196244U CN 201689734 U CN201689734 U CN 201689734U
- Authority
- CN
- China
- Prior art keywords
- cable
- xlpe
- insulation
- power cable
- variable frequency
- 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
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a novel structured variable frequency power cable, which is characterized by being provided with three main insulated core conductors. A main insulated core insulation (XLPE) is arranged outside each main insulated core conductor, neutral core insulation (XLPE) is arranged outside a neutral conductor, and the neutral conductor and the neutral core insulation (XLPE) are arranged in a gap between the main insulated core conductors and the main insulated core insulation (XLPE) so as to form a symmetrical cable. A covering, a wrapped copper tape shield layer, a polyethylene isolation sheath, steel tape armor and a black weather-proof polyethylene sheath are sequentially arranged outside the symmetrical cable. The novel structured variable frequency power cable is a symmetrical cable with a cable structure (3+3), interferences of the three main insulated core conductors can be mutually canceled, interference of higher harmonics generated by the cable to outside can be avoided, problems of insulation breakdown and cable external electromagnetic interference can be solved, and thereby the variable frequency power cable greatly increases quality level and meets quality requirements of variable frequency motor users.
Description
Technical field
The utility model is the improvement to frequency conversion power cable structure, relates to a kind of frequency conversion power cable of new structure.
Background technology
At present, domestic frequency conversion power cable is supporting for frequency control motor, and frequency conversion (30-300Hz) power supply is sent to buncher by power cable.This variable frequency power supply realizes by thyristor frequency modulation.It has following characteristics: the pulse voltage height, cause that easily main insulation punctures, and electronic device works around the external launching electromagnetic wave of cable body disturbs, superimposed current appears in the neutral line.Traditional power cable (3+1) structure can not adapt to the transmission variable frequency power supply, its reason is to cause electrical breakdown and external launching electromagnetic wave easily, disturb surrounding environment, this all is because of traditional unreasonable causing of power cable structural design, so will improve frequency conversion power cable structure.
Summary of the invention
The purpose of this utility model is for overcoming the defective of above-mentioned existence, a kind of frequency conversion power cable of new structure being provided.
The utility model frequency conversion power cable content Description:
The utility model frequency conversion power cable, it is characterized in that: be provided with three main insulation core conductors, be provided with main insulation core insulation (XLPE) in the outside of main insulation core conductor, the outside of neutral conductor is provided with neutral line core insulation (XLPE), neutral conductor and neutral line core insulation (XLPE) are arranged between the space of main insulation core conductor and main insulation core insulation (XLPE), form symmetrical cable, its outside is provided with band, wrapped copper strips screen, polyethylene separation sleeve, steel-tape armouring and weather-proof black polyethylene sheath successively.
The utility model frequency conversion power cable is the symmetrical cable of (3+3) construction of cable, the interference of three main insulation cores can be supported mutually and cut, the high order harmonic component that can prevent the cable generation is externally disturbed, solved the external electromagnetic interference problem of insulation breakdown and cable, frequency conversion power cable quality level is improved greatly, adapt to the needs of variable-frequency motor user quality, have remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is a frequency conversion power cable section structure schematic diagram
Among the figure: the 1st, main insulation core conductor, the 2nd, main insulation core insulation (XLPE), the 3rd, neutral conductor, the 4th, neutral line core insulation (XLPE), the 5th, band, the 6th, wrapped copper strips screen, the 7th, polyethylene separation sleeve, the 8th, steel-tape armouring, the 9th, weather-proof black polyethylene sheath.
Embodiment
The utility model frequency conversion power cable is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, the frequency conversion power cable is provided with three main insulation core conductors 1, be provided with main insulation core insulation (XLPE) 2 in the outside of main insulation core conductor 1, the outside of neutral conductor 3 is provided with neutral line core insulation (XLPE) 4, neutral conductor 3 and neutral line core insulation (XLPE) 4 are arranged between the space of main insulation core conductor 1 and main insulation core insulation (XLPE) 2, form symmetrical cable, the high order harmonic component that three-phase is produced is cancelled each other, and reduces to external world and disturbs.Its outside is provided with band 5, wrapped copper strips screen 6, polyethylene separation sleeve 7, steel-tape armouring 8 and weather-proof black polyethylene sheath 9 successively.
The utility model frequency conversion power cable forms good electromagnetic shielding by wrapped copper strips screen 6 and steel-tape armouring 8, and can eliminate surrounding environment is disturbed.Adopt (3+3) construction of cable, form symmetrical cable, the interference of three main insulation cores can be supported mutually and cut.In addition, behind the total shielding construction of increase cable, can prevent that the high order harmonic component of cable generation from externally disturbing.Simultaneously, the main insulation material is former in polyvinyl chloride, now replaces to crosslinked polyethylene (XLPE), and the cable insulation level is improved greatly.Solve the external electromagnetic interference problem of insulation breakdown and cable, frequency conversion power cable quality level is improved greatly, adapted to the needs of variable-frequency motor user quality, had remarkable economic efficiency and social benefit.
Claims (1)
1. frequency conversion power cable, it is characterized in that: be provided with three main insulation core conductors (1), be provided with main insulation core insulation (XLPE) (2) in the outside of main insulation core conductor (1), the outside of neutral conductor (3) is provided with neutral line core insulation (XLPE) (4), neutral conductor (3) and neutral line core insulation (XLPE) (4) are arranged between the space of main insulation core conductor (1) and main insulation core insulation (XLPE) (2), form symmetrical cable, its outside is provided with band (5) successively, wrapped copper strips screen (6), polyethylene separation sleeve (7), steel-tape armouring (8) and weather-proof black polyethylene sheath (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201962449U CN201689734U (en) | 2010-05-20 | 2010-05-20 | Variable frequency power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201962449U CN201689734U (en) | 2010-05-20 | 2010-05-20 | Variable frequency power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689734U true CN201689734U (en) | 2010-12-29 |
Family
ID=43378014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201962449U Expired - Fee Related CN201689734U (en) | 2010-05-20 | 2010-05-20 | Variable frequency power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689734U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157225A (en) * | 2011-03-25 | 2011-08-17 | 天津市津特线缆有限责任公司 | Special cable for variable frequency motor and manufacture method thereof |
| CN103854797A (en) * | 2014-02-24 | 2014-06-11 | 安徽卓越电缆有限公司 | Copper conductor power cable |
| CN103871590A (en) * | 2014-02-26 | 2014-06-18 | 安徽渡江电缆集团有限公司 | Mineral insulated fire-proof cable |
-
2010
- 2010-05-20 CN CN2010201962449U patent/CN201689734U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157225A (en) * | 2011-03-25 | 2011-08-17 | 天津市津特线缆有限责任公司 | Special cable for variable frequency motor and manufacture method thereof |
| CN103854797A (en) * | 2014-02-24 | 2014-06-11 | 安徽卓越电缆有限公司 | Copper conductor power cable |
| CN103871590A (en) * | 2014-02-26 | 2014-06-18 | 安徽渡江电缆集团有限公司 | Mineral insulated fire-proof cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203966657U (en) | Aluminium alloy core medium voltage frequency converter private cable | |
| CN201689734U (en) | Variable frequency power cable | |
| CN203300251U (en) | Variable frequency cable used for ships and warships | |
| CN201374200Y (en) | Special cable for mining transducer | |
| CN204242629U (en) | There is the converter cable of anti-electromagnetic interference function | |
| CN201174275Y (en) | Environment protection type shielding electric cable for electric power | |
| CN101923916A (en) | Variable frequency power generator cable with control wire core | |
| CN203351282U (en) | An armored metallic shielding variable-frequency power cable equipped with an inner steel tape | |
| CN201758014U (en) | Frequency-conversion generator cable with a control line core | |
| CN203588747U (en) | Medium-voltage variable frequency cable | |
| CN203026242U (en) | Variable frequency cable for frequency converter | |
| CN202871391U (en) | Three-core type frequency conversion power cable | |
| CN202282193U (en) | Twin-core twisted bipolar direct current cable | |
| CN202196598U (en) | Comprehensive wiring cable used for building | |
| CN203588748U (en) | Concentric conductor type dual-shielding variable-frequency cable | |
| CN201673697U (en) | Variable frequency cable | |
| CN201315170Y (en) | Frequency converting cable used in coal mine | |
| CN201984892U (en) | Frequency conversion cable | |
| CN204315260U (en) | A kind of shielding dual-purpose type frequency-changing cable | |
| CN204360805U (en) | A kind of house decoration special environment protection comprehensive wiring cable | |
| CN202339749U (en) | Frequency conversion cable | |
| CN202871396U (en) | Ultra-shielding signal cable resisting electromagnetic pulse | |
| CN203102948U (en) | Frequency conversion motor cable | |
| CN202917236U (en) | Environment-friendly shielded cable for electric power | |
| CN201732625U (en) | Special-purpose power cable for inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20150520 |
|
| EXPY | Termination of patent right or utility model |