Sang-Hoon Park

Analysis of Electric Field Redistribution in Oil-Pressboard Insulation of a ±525 kV HVDC Converter Transformer under AC/DC Superimposed Voltage

HVDC converter transformers are subjected to complex electrical stresses because AC and DC voltage components coexist on the valve winding. This study investigates time-dependent electric-field redistribution in the oil-pressboard insulation of a ±525 kV VSC-HVDC converter transf...