EN
YAWEI CASE
As one of the core devices in the power system, oil-immersed transformers are widely used in power transmission and distribution networks, industrial energy systems and renewable energy projects due to their high reliability, large capacity carrying capacity and long service life. YAWEI Oil-Immersed Transformers have demonstrated outstanding performance in power engineering at home and abroad through technological innovation and engineering optimization.
The Yawei oil-immersed transformer integrates multiple innovative technologies on the basis of traditional design, meeting the demands of modern power engineering for high efficiency, environmental protection and intelligence.
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.
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.
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.
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.
After replacing the energy-saving transformer, the factory's average monthly electricity consumption has dropped by about 15%. The no-load loss and load loss are significantly lower than the national standard. The electricity bill saved by long-term use is close to the equipment purchase cost, and the cost-effectiveness is outstanding.
Time: 2022.06.24
The quality of the transformers is excellent, and the technical support team is very professional. They helped us customize the solution according to our specific requirements and provided excellent after-sales service.
Time: 2022.07.15
Outstanding product reliability and performance. We have been using their transformers for over 3 years without any issues. The energy efficiency has significantly reduced our operational costs.
Time: 2022.08.20
