Research on Hot Spot Temperature Calculation and Analysis of Online Monitoring Method of Oil-immersed Power Transformer Winding

摘要

Transformer hot spot temperature is the most important reason for affecting the insulation state of the winding. Hot spot position is also one of the most serious areas in transformer oil paper insulation aging. Therefore, to monitor the hot point temperature is of great significance. This paper introduces the indirect calculation model of hot spot temperature of oil-immersed power transformer and the real-time on-line monitoring system. Subsequently the simulation of transformer hot spot temperature instance is enumerated with the MATLAB environment.