High-efficiency heat dissipation and insulation design

Oil circulation optimization: By adopting spiral heat sinks and forced oil circulation (OFAF) systems, the heat dissipation efficiency is increased by 30%, and the temperature rise is controlled within 55K, ensuring stable operation in high-temperature and high-load environments.

Environmentally friendly insulating medium: Use high flash point β oil (flash point >300°C) or natural ester insulating oil to replace traditional mineral oil, reduce the risk of fire, and comply with the IEC 60076 environmental protection standard.

Low loss and energy-saving characteristics

Innovation of magnetic core materials: Laser-engraved silicon steel sheets or amorphous alloy cores are adopted. The no-load loss is reduced by 40%-50% compared with the national standard (GB/T 6451). For typical models (such as S13-M-1000kVA), the no-load loss is ≤900W.

Intelligent voltage regulation technology: Equipped with on-load voltage regulation switches (OLTC), the voltage regulation range is ±10%, dynamically adapting to grid fluctuations and reducing reactive power compensation requirements.

Environmental adaptability and reliability

Extreme climate response: The box adopts a fully sealed structure (IP67 protection grade), equipped with a humidity balance valve and anti-condensation coating inside, suitable for desert (-40°C to +50°C), coastal salt spray and high-altitude (>4000 meters) areas.

Seismic resistance and short-circuit resistance capacity: Passed the IEC 60076-11 seismic certification, short-circuit impedance error ≤5%, and the ability to withstand short-circuit current reaches 25kA/3s.

Integration of intelligence and digitalization

Online monitoring system: Equipped with DGA (Dissolved Gas Analysis), oil temperature and oil level sensors, it supports wireless data transmission to the SCADA system to achieve fault early warning and life assessment.

Digital twin compatibility: Supports integration with BIM (Building Information Modeling) platforms to optimize the installation and operation and maintenance planning of transformers in engineering projects.

Through technological innovation and engineering practice, Yawei oil-immersed transformers have set industry benchmarks in the fields of high efficiency and energy conservation, environmental adaptability and intelligence, and have become core equipment for global energy transition and power infrastructure. In the future, as the construction of the new power system accelerates, Yawei will continue to deepen technological iteration to provide reliable support for the "dual carbon" goals and global energy interconnection.