Product Introduction
Continuously Transposed Conductors are winding materials made of multiple enameled flat wires that are precisely transposed and insulated as a whole. They are specifically designed for large-capacity transformers and are designed to address the industry pain points of high eddy current losses and insufficient mechanical strength to withstand short circuits.
Production Range
|
Strand dimensions |
Range |
Min Pitch |
Standard |
|
Thickness |
1.00---3.15 |
35mm |
5-87 strips |
|
Width |
3.00---12.50 |
Core Advantages
Precision transposition structure effectively counteracts skin and proximity effects.
Utilizing epoxy self-adhesive enameled wire and thermosetting curing technology, the conductor bundle fuses into a robust whole upon heating.
Extremely thin transposition gap and high-precision cross-section control.
Supports complete customization of 5-80+ strands, strand size, insulation paper material, and transposition pitch.
Application Areas
Power Transformer Windings
As a core material in large-capacity, ultra-high voltage (UHV) main transformers, they control temperature rise and ensure long-term grid stability.
Shunt/Series Reactors
Used in grid compensation reactors, they maintain low losses and high Q values under high alternating magnetic fields, stabilizing system voltage.
Rail Transmission Traction Transformers
Used in high-speed rail/metro substations, they ensure continuous vehicle power thanks to their extremely high seismic resistance and overload capacity.
New Energy Step-Up Transformers
Used at wind power/photovoltaic grid connection points, they provide excellent thermal shock resistance, easily handling frequent load fluctuations.
Manufacturing Capabilities
Fully Automated Transposition: Imported high-speed continuous transposition line with millimeter-level pitch fine-tuning and fully automated closed-loop mechanical tension control, ensuring zero conductor scratches.
Online Inspection: The entire production line is equipped with laser diameter gauges and online insulation pinhole detectors, providing comprehensive monitoring of dimensional tolerances and insulation performance.
Fully Independent Supply Chain: All work-in-process processes, including wire drawing, enameling, transposition, and paper wrapping, are handled in-process without outsourcing, reducing delivery time by 15%-20%.
International Standards: Strictly adheres to IEC 60317 and ASTM standards.
Heavy-Duty Export Packaging: Utilizes moisture-proof, vacuum-sealed, and reinforced fumigation-proof wooden shaft packaging to ensure zero oxidation and zero damage during long-distance sea transport.
Packing Reference
Shipping Options
FAQ
Q: What is the minimum order quantity (MOQ)? What is the lead time?
A: The MOQ is 3 tons. Standard lead time is 15-25 days.
Q: How do you guarantee no oxidation or deformation during long-distance sea transport?
A: We use three layers of heavy-duty export packaging with vacuum moisture-proof and fumigation-proof reinforced wooden shafts.
Q: What is the controllable range for transposition pitch and dimensional tolerances?
A: Pitch accuracy is to the millimeter level, and single-strand tolerance is controlled within ±0.015 mm, which is better than IEC standards.
Q: Do you support third-party testing? What international certifications do you have?
A: Compliant with IEC 60317 / ASTM standards. We support pre-shipment sampling inspections by third parties such as SGS, TÜV, and BV.
Q: Can you customize Nomex paper or other special insulation materials?
A: Yes. It supports the customization of ordinary kraft paper, high elongation paper, Netson paper, Nomex paper, and specific paper layers.
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