On-line diagnostic method and prediction of dielectric behavior of power transformers and apparatus for making the same

摘要

method of on-line diagnosis, prediction and optimization of dielectric behaviour of power transformer is provu00e1den,the transformer (1) is prubeu017ene merena relative humidity oil and the oil temperature in the upper part, which represents the highest temperature of the containment system, the oil - cellulose.in the lower part is prubeu017ene merena oil temperature, which represents the lowest temperature of the containment system, the oil - cellulose.as the relative humidity of oil, both temperatures are periodically scanned for meru00edcu00edm pocu00edtacem (5).the value of temperature in the upper part of the transformer (1) is also prenu00e1u0161ena to a temperature regulator (8) of a transformer (1),while meru00edcu00ed computer (5) stored in defined casovu00fdch intervals merenu00e9 veliciny in his memoirs and by comparison of their casovu00fdch entered criteria, and evaluate the koncentracns and the temperature balance transformer (1).if it is outside the scope of the required koncentracnu00ed and thermal balanceit is meru00edcu00edm pocu00edtacem (5) prestavena required value temperature transformer (1) into a temperature regulator transformer (8),the transformer (1) turn your cooling system in the required temperature and figure below and koncentracnu00ed balance.after achieving the desired equilibrium conditions in the transformer (1) is from the relation between the water content in the cellulose, vypocu00edtanu00e9ho water content in oil and high temperature transformer (1),the value of water content in the middle vypocu00edtu00e1na cellulosic materials transformer (1) and stored in the memory mericu00edho computer (5).it is also the value of the middle water content compared with the values obtained from measurements of previously specified criteria, and on the basis verifikovu00e1na veroho