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 120 mm | Width 26 mm (tolerance ± 0.05 mm)
- Single conductor thickness a: 0.90–3.15 mm (tolerance ± 0.01 mm)
- Single conductor width b: 2.50–13.00 mm (tolerance ± 0.01 mm)
- Suggested width/thickness ratio of single conductor: 2.0 < b/a < 9.0
- Suggested enamel insulation thickness: 0.08–0.12 mm | Bondable epoxy resin thickness: 0.03–0.05 mm
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: 1.00–3.15 mm | Width of conductor b: 3.00–12.50 mm |
| 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 | 80 mm (excluding insulation) |
| Max width | 26 mm (excluding insulation) |
| Max height of CTC bundles | 80 mm (excluding paper insulation) |
| Max width of CTC bundles | 26 mm (excluding paper insulation) |
Frequently Asked Questions
What is the maximum number of CTC strips available in your production scope?
Our production scope supports CTC strips ranging from 5 to 80 strips, available in both odd and even configurations, making it suitable for a wide variety of transformer applications.
What are the dimensional tolerances for the CTC overall size?
The maximum overall CTC dimension is 120 mm in height and 26 mm in width, with a dimensional tolerance of ± 0.05 mm. Individual conductor tolerances for both thickness and width are maintained at ± 0.01 mm.
What is the recommended width-to-thickness ratio for a single conductor?
For optimal performance, the suggested width-to-thickness ratio (b/a) for a single conductor in the production scope is between 2.0 and 9.0. For the standard product description range, the recommended ratio is between 2.5 and 7.5. Please contact us if your requirements fall outside these ranges.
What types of insulation are available for CTC products?
We offer a comprehensive range of insulation options, including paper insulation, bondable epoxy resin, PET film insulation, and enamel insulation. The suggested enamel insulation thickness is 0.08–0.12 mm, and the bondable epoxy resin layer is 0.03–0.05 mm thick.
How many insulation layers can be applied at one time during production?
Our production equipment is capable of applying up to 24 insulation layers in a single pass, ensuring efficient processing and consistent insulation quality across all CTC bundles.
Do you offer customized CTC products for special applications?
Yes. In addition to our standard product range, we offer specialized options such as Composite CTC with step, Composite CTC with screen wire inside, and Polyvinyl acetal enameled CTC with special binded configurations. Please reach out to our team if your application requires dimensions or specifications beyond our standard range.