Diagnostika transformátorů VVn

Abstract

In this work, I compared the theoretical and practical results of diagnostic transformers UHV, which I obtained university studies and practice with my employer. For comparison of results, I used some practical measurements of diagnostic EHV transformers rated 40MVA and 25MVA power, manufacturers Škoda, EBG and Končar. In the first part of this work is a general theoretical analysis of the issues of diagnosis, description of methods and systems of measurement. Briefly describe the direction and trends in diagnosis of non-rotating machines. In the next section I compare the measured values of the various manufacturers of machines and data measurements. As a basis for comparison I also served a database of measured values of transformers from the period 2006 - 2010, in which I participated with colleagues of his employer.