Did you know the 3 main reasons for transformer hot spotsBy Rugged monitoring | 01/08/23
Introduction
Power Transformer is an important component in various segments right from power generation to commercial applications. Power transformers are continuously in operation since their commissioning, their ageing process are going on towards their end of life which cannot be avoided. To achieve a zero-downtime predicting the condition and lifetime of the transformer is of utmost importance. The life of a transformer is majorly governed by its thermal limitations. In oil-filled power transformers, circulating oil is hotter at the top of the winding. Adding up these various heat dissipation phenomena will end up causing “hot spots”. Hot spots are the highest temperature areas in the transformer based on flux leakage from the windings and can degrade the insulating paper making the transformer susceptible to failure.
There are several reasons for hot spots, but we have identified top 3 reasons for the development of hot spots in transformer. Several actions can be undertaken to extend the assets life and prevent costly failures which can have financial impact. Following are the three main reasons which cause hot spots in the transformers
Following are the three main reasons which cause hot spots in the transformers