New Energy

The new energy sector covers wind power, solar power, energy storage, and electric vehicles, with equipment continuing to evolve toward higher efficiency, higher power density, more compact designs, and longer service life. We provide magnet wire solutions with high insulation reliability and precise dimensional control for renewable power generation, electric drive, and energy storage systems.

Applications Overview

New energy equipment operates under dynamic conditions with frequent power variations and increasing power-density requirements:

Wind power equipment is continuously exposed to vibration, humidity, and outdoor temperature variations.
Solar and energy storage systems experience frequent power conversion and significant load fluctuations.
EV drive systems operate with high current, high power density, and frequent start-stop cycles.
High-frequency pulses and rapid voltage transitions from inverters increase electrical stress on insulation systems.
Equipment miniaturization requires higher slot fill and more efficient winding space utilization.
Repeated thermal cycling and demanding environments place greater requirements on insulation life and material stability.

Customer Challenges

Limited power density
Accelerated insulation aging at elevated temperatures
Insulation damage from inverter pulses
Enamel damage during high-speed automated winding
Insufficient consistency in mass production
Harsh environments affecting long-term reliability

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Key Requirements

Higher slot fill and tighter conductor dimensional accuracy
High thermal-class insulation systems
Improved corona resistance and pulse endurance
Improved adhesion, flexibility, and surface quality
Precise control of conductor dimensions and insulation thickness
Enhanced thermal, mechanical, and insulation stability

Yuheng Solution

High slot-fill conductors

Precision enameled rectangular wires improve winding space utilization

Thermal class matching

Corona-resistant design

Dimensional precision control

Surface and process optimization

Batch consistency

Applicable Equipment

Wind generators
Wind power transformers
Solar step-up transformers
Energy storage transformers
Reactors
EV traction motors
Electric compressors
Power electronic equipment for renewable energy and energy storage systems

Capability Evidence

Withstand & PD Testing

Automated voltage tester verifies withstand and PD levels reel by reel.
Surface & Dimension Inspection

Vision measuring for OD tolerance and batch consistency control.
Dielectric Loss Testing

Low tanδ verified for long-term insulation reliability.
Full-Process Laboratory

Mechanical, resistance and thermal testing with full traceability

Tell Us About Your Application

Share your winding specifications and loss requirements — our engineers will confirm the transposition and insulation design and reply within one day.