China Southern Power Grid Kunming UHV Base: Power Frequency Withstand Voltage Test Transformer

The "YDTCW-4500/3×750 UHV 2250kV Test Transformer", developed by our company for the China Southern Power Grid Kunming UHV Base, is positioned as the first of its kind within its voltage class series in the current domestic industry. Its exceptional performance successfully meets the stringent testing requirements of the Kunming UHV Base, providing core support for UHV equipment insulation performance testing and extreme operating condition validation. This marks China's entry into a new stage in the research and development of high-voltage class test transformers.

As a core piece of equipment supporting UHV power grid equipment testing, this test transformer can achieve the 2250kV UHV testing requirement, accurately executing critical tasks such as UHV equipment insulation performance testing and extreme condition verification. Its design specification of 750kV per unit breaks through previous technical bottlenecks for domestic insulating test transformers, providing reliable assurance for the Kunming UHV Base to conduct higher-standard, more complex UHV equipment testing and research.

The successful delivery of this product is not only a major breakthrough for our company in the field of UHV equipment R&D but also fills a domestic application gap for test transformers at this voltage level. Looking ahead, the company will continue to deepen its innovation in UHV equipment technology and strengthen collaboration with leading enterprises in the energy sector, such as China Southern Power Grid, to inject further momentum into the safe, stable operation of China's UHV power grid and the high-quality development of the energy industry.