The most easily accessible and efficient way to determine transformer condition is to use the fluid as the diagnostic medium. It has been estimated that transformer fluids contain about 70% of the available diagnostic information for transformers. The challenge is to access and use it effectively. Traditional oil-test programs utilize only a few diagnostic parameters leaving a myriad of important oil based information unused. Surveys of failed transformers have revealed that many failures can be attributed to problems that could have been property managed with a more detailed analysis of the insulating fluid.
To meet the demand for an improved transformer management tool, TJIH2b Analytical Services has developed Transformer Condition Assessment, TCA®. TCA® offers a comprehensive assessment of the dielectric and mechanical state of the transformer through the analysis of the transformer insulating fluid. The TCA® test selection includes application from the field of microscopy, providing a better understanding of the problems and risks associated with continued transformer operation.