AUTHOR= TITLE=Retraction: Research on standardization of power transformer monitoring and early warning based on multi-source data JOURNAL=Frontiers in Energy Research VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2025.1740037 DOI=10.3389/fenrg.2025.1740037 ISSN=2296-598X