0102030405
China Suppliers Factory for Large Oil Immersed Power Transformer Continuously Transposed Conductor (CTC)
Production Scope
- CTC strips: 5–80 (odd or even).
- Max overall dimension: Height 120mm, Width 26mm (tolerance ±0.05mm).
- Dimension of enameled wire — Single conductor: Thickness a: 0.90–3.15mm (tolerance ±0.01mm); Width b: 2.50–13.00mm (tolerance ±0.01mm).
- Suggested width/thickness ratio of single conductor: 2.0 < b/a < 9.0.
- Suggested thickness of enamel insulation: 0.08–0.12mm; thickness of bondable epoxy resin: 0.03–0.05mm.
Product Scope
- Polyvinyl acetal enameled CTC with paper insulation
- Polyvinyl-adhesive acetal enameled CTC with paper insulation
- Polyvinyl-adhesive acetal semi-hard acetal enameled CTC with paper insulation
- Polyvinyl acetal enameled CTC with special binded
- Composite CTC with step
- Composite CTC with screen wire inside
- Polyesterimide enameled CTC
- Polyvinyl alcohol enameled CTC with PET film insulation
Product Description
| Number of strips: | 7–49 |
| Single dimension: | Thickness of conductor a: 1.00–3.15mm | Width of conductor b: 3.00–12.50mm |
| Suggested ratio of width and thickness: | 2.5 < b/a < 7.5 |
| Please contact us if your dimension is out of above range — Insulation layers: | 24 layers at one time. |
| Max thickness of CTC: | 80mm (excluding insulation) |
| Max width: | 26mm (excluding insulation) |
| Max. Height of CTC bundles: | 80mm (excluding paper insulation) |
| Max. Width of CTC bundles: | 26mm (excluding paper insulation) |
💬 Frequently Asked Questions
Q What is the maximum number of CTC strips that can be produced?
The production scope supports CTC strips ranging from 5 to 80 (odd or even), providing a wide range to accommodate various transformer winding design requirements.
Q What are the maximum overall dimensions of the CTC bundles?
The maximum overall dimensions are a height of 120mm and a width of 26mm, with a tolerance of ±0.05mm. For CTC bundles specifically, the max height is 80mm and max width is 26mm, both excluding paper insulation.
Q What types of enameled CTC products are available?
A wide range of products is available, including polyvinyl acetal enameled CTC with paper insulation, polyesterimide enameled CTC, composite CTC with step or screen wire inside, and polyvinyl alcohol enameled CTC with PET film insulation, among others.
Q What is the recommended width-to-thickness ratio for the single conductor?
The suggested width-to-thickness ratio (b/a) for the single conductor is between 2.0 and 9.0 for the production scope, and between 2.5 and 7.5 for standard product dimensions. Please contact us if your requirements fall outside these ranges.
Q What is the suggested insulation thickness for the enameled wire?
The suggested thickness of enamel insulation is 0.08–0.12mm. For bondable epoxy resin, the suggested thickness is 0.03–0.05mm, ensuring proper insulation performance for transformer applications.
Q How many insulation layers can be applied at one time during production?
Up to 24 insulation layers can be applied at one time during the manufacturing process, supporting efficient and consistent insulation coverage for CTC conductor bundles.