Continuously Transposed Conductor CTC-Semi-rigid
Technical Specifications
| Performance Indicator | Parameter Range | Description |
| Yield Strength (Non-proportional Extension) | 100-260N/mm² | Classified into C1/C2/C3 grades; the higher the strength, the lower the elongation |
| Elongation | C1≥30%, C2≥20%, C3≥12% | Decreases with the increase of yield strength |
| Resistivity | ≤0.017241Ω·mm²/m (20℃) | Complies with the pure copper conductor standard |
| Enamel Film Temperature Resistance Grade | Class 120/130/180/200 | For acetal/polyester/polyimide and other enamel types |
Industry Application
| Industry | Typical Application Scenarios | Description |
| Large Power Equipment | Windings for oil-immersed power transformers of 110kV and above, ultra-high voltage main transformers | Greatly reduces eddy current loss through conductor transposition, improving equipment efficiency and stability |
| Power Grid Supporting Facilities | Windings for series reactors, shunt reactors, and large-capacity dry-type transformers | Solves the temperature rise and loss problems under high-current operating conditions, extending equipment service life |
| Industrial & Special Scenarios | Railway traction transformers, large generator stator windings, nuclear/wind power supporting transformers | Scenarios with extremely high requirements for space utilization, heat dissipation performance and mechanical strength |
Production Process Flow
Product Classification Overview
Classification by Insulation & Enamel Type
• BYHZQY‑N: Semi‑hard paper‑insulated self‑bonding polyester enameled transposed conductor.
• BYHZQXY: Semi‑hard paper‑insulated polyesterimide enameled transposed conductor (Class 180), suitable for high‑temperature dry‑type / oil‑immersed applications.
• BYHZQXY‑N: Semi‑hard paper‑insulated self‑bonding polyesterimide enameled transposed conductor.
• BYHZQXYF: Semi‑hard paper‑insulated polyimide composite enameled transposed conductor (Class 200), for ultra‑high temperature applications.
Classification by Outer Insulation Material
• Electrical cable paper insulation (standard type): Cost‑effective, suitable for conventional oil‑immersed transformers.
• Aramid paper (Nomex) insulation: Thermal class 180°C, ideal for dry‑type / high‑heat resistance applications.
• Polyester non‑woven tape insulation: Class 155, high mechanical strength, good tear resistance.
• Grid‑bound type (paperless / perforated paper tape): Lightweight design for UHV / large‑capacity applications.
• PET film insulation: Thin‑wall insulation, low high‑frequency loss, suitable for special reactors.
Classification by Self‑Bonding Characteristic
• Standard type (non self‑bonding): BYHZQQ, for conventional windings, fixed by impregnation.
• Self‑bonding type (BYHZQQN, etc.): Thermal bonding improves winding integrity; designed for dry‑type / short‑circuit resistant applications.
• Single‑sided / double‑sided self‑bonding on wide face: Optimizes bonding area and enhances short‑circuit withstand capability.
application scenario display
Our Company
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daijia@dm-cable.com
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Xiyang Community, Qidu Town, Wujiang District, Suzhou City, Jiangsu Province.
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