Simulation and Analysis of Transformer Inrush Current and Reduction Technique

Abstract

inrush current are high magnitude harmonic current generated when electrical device core are driven
into saturation during starting. That high magnitude of current cause effect on device like a loss of life, relay misoperation, power quality reduction, potential damage. This paper presents simulation of 450 MVA, 500/230 KV
power transformer for analysis of inrush current. Inrush current is present in transformer as well as in motor in
electrical devices. There are three type of inrush current energization inrush, recovery inrush, and sympatric
inrush.