Enameled Wire
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- Zhengzhou LP Industry CO.LTD
- E-mail: office@cnlpzz.com
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- Address: No. 86, Jingsan Road, Jinshui Zone, Zhengzhou , Henan Pro. China.
Copper Paper Covered Wire
Copper Paper Covered Wire is applied in oil-filled power and distribution transformers, dry-tape transformers, high tension motors and generators, fractional equipment’s. Chemical, mechanical and thermal properties of various types of paper and their layered thickness define the properties of conductivity for specific requirements.
Structure Design
Combination wire can be made by 2 or more rectangular conductors overlapping in width or thickness. It can be divided into flat-overlapping, side-by-side overlapping and solid overlapping according to type of combination and covering.
Copper paper covered wire can be divided into Paper round copper Covered Wire and Paper flat copper Covered Wire. The Technical Specifications
Advantages of Paper covered Copper wire
1. Paper covered aluminum can reduce cost, reduce size and weight
The use of insulated dry-type transformers requires relatively few wires and iron cores, thereby reducing capital construction costs. Especially because there is no need for vaults and oil sump, it can be reduced in size and weight; therefore, it is easy to install, and the smaller iron core also means that the no-load loss is reduced.
2. Paper covered copper wire can increase the spare capacity
Transformers using insulation have additional capacity to cope with emergency overload conditions and unexpected expansion, which can greatly reduce the backup plan.
3. Paper covered copper wire can improve reliability
The use of paper-coated electromagnetic wires maintains excellent electrical and mechanical properties throughout the transformer's life. The paper-covered electromagnetic wire is not easy to age, shrinkage and shrinkage resistance, and has strong elasticity, so it can ensure that the transformer can keep the structure tight and can withstand short-circuit impact even after several years of use.
LP Industry also provides the aluminum paper covered wire and CTC paper covered conductor.
Structure Design
Combination wire can be made by 2 or more rectangular conductors overlapping in width or thickness. It can be divided into flat-overlapping, side-by-side overlapping and solid overlapping according to type of combination and covering.
Copper paper covered wire can be divided into Paper round copper Covered Wire and Paper flat copper Covered Wire. The Technical Specifications
| Temperature Class | Insulation | Round Conductor | Flat Conductor Size | Standard | Propertie | Application |
| 105 (A) | Kraft Paper,Crepe Paper | 2.00mm-16.00mm | T: 0.80mm--16.00mm W: 2.00mm--25.00mm |
IEC 60317-27MW 31C, 33C | • Low cost • Good electrical characteristics in oil | Oil immersed transformer large transformer, switch |
| 120(E) | High-density insulation paper, Thermally up-graded paper | 2.00mm-16.00mm | T: 0.80mm--16.00mm W: 2.00mm--25.00mm |
Enterprise standard | • Good heat resistance • Good electrical characteristics in oil |
Oil immersed transformer large transformer, switch |
| 155 (F) | Mica Tape | 2.00mm-16.00mm | T: 0.80mm--16.00mm W: 2.00mm--25.00mm |
Enterprise standard | • Good heat resistance | Small rotating machines small and medium generators |
| 200(C) | Nomex Paper | 2.00mm-16.00mm | T: 0.80mm--16.00mm W: 2.00mm--25.00mm |
IEC 60317-52, 53MW 60C, 61C | • Good heat resistance • Good space factor | Dry-type transformer,auto motor |
| 240(C) | Kapton / Polyimide Tape | 2.00mm-16.00mm | T: 0.80mm--16.00mm W: 2.00mm--25.00mm |
IEC 60317-43, 44MW 62C, 63C | • Good heat resistance • Good space factor • Excellent dielectric strength |
Auto motor |
Advantages of Paper covered Copper wire
1. Paper covered aluminum can reduce cost, reduce size and weight
The use of insulated dry-type transformers requires relatively few wires and iron cores, thereby reducing capital construction costs. Especially because there is no need for vaults and oil sump, it can be reduced in size and weight; therefore, it is easy to install, and the smaller iron core also means that the no-load loss is reduced.
2. Paper covered copper wire can increase the spare capacity
Transformers using insulation have additional capacity to cope with emergency overload conditions and unexpected expansion, which can greatly reduce the backup plan.
3. Paper covered copper wire can improve reliability
The use of paper-coated electromagnetic wires maintains excellent electrical and mechanical properties throughout the transformer's life. The paper-covered electromagnetic wire is not easy to age, shrinkage and shrinkage resistance, and has strong elasticity, so it can ensure that the transformer can keep the structure tight and can withstand short-circuit impact even after several years of use.
LP Industry also provides the aluminum paper covered wire and CTC paper covered conductor.
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