Power transformer industry

Huahao New Material focuses on the high reliability requirements for insulation materials in power transformers, providing insulation system solutions covering the full voltage range from low to ultra-high voltage, with particular technological breakthroughs in high-temperature and high-voltage applications. Its core products include high-voltage insulating paperboard, ultra-high-voltage cable paper, and high-temperature-resistant crepe paper. Utilizing high-density fiber arrangement and nanoscale impregnation processes, these materials achieve a breakdown voltage exceeding 750 kV, with a 35% increase in partial discharge inception voltage. They also exhibit excellent thermal aging resistance, enabling continuous operation for over 20 years in 120℃ environments. To address transformer weight reduction needs, the company's lightweight insulating paperboard features a uniformly distributed density gradient and thickness precision controlled within ±0.02 mm, effectively reducing internal voids and lowering the risk of localized overheating, thereby enhancing equipment energy efficiency by 8%. The ultra-high-voltage cable paper, through special surface treatment, achieves deep compatibility with insulating oil, with a dielectric strength of 65 kV/mm, meeting the requirements of ±1100 kV DC transmission projects. Currently, its products are widely used in ultra-high-voltage grid projects and new energy power generation supporting equipment, helping clients reduce insulation failure rates by 60% and extend equipment maintenance intervals to over 8 years, driving the transformer industry towards greater efficiency and reliability.