Improved transformer condition monitoring and improved assessment of the impact of small-scale generation

Northern Ireland’s transmission system is undergoing rapid structural change driven by decarbonisation targets, electrification of heat, transport and industry, and increasing penetration of distributed renewable generation. These developments are altering traditional power-flow patterns and increasing uncertainty in asset loading, particularly at transmission– distribution interfaces. This paper presents two complementary methodologies to support strategic investment decisions: enhanced transformer thermal assessment using IEC 60076-7