Title :
Determining water in transformer paper insulation: effect of measuring oil water activity at two different locations
Author :
Martin, Daniel ; Saha, Tapan ; Gray, Tony ; Wyper, Ken
Author_Institution :
Power & Energy Syst., Univ. of Queensland, St. Lucia, QLD, Australia
Abstract :
It is necessary to monitor the water content of the paper insulation (WCP) within a power transformer because, if it becomes too large, the paper insulation may age prematurely or the transformer may fail on overload. It is nearly always unfeasible to extract a paper insulation sample from a transformer for a laboratory measurement of its water content because it involves removing part of the insulation.
Keywords :
failure analysis; power transformer insulation; transformer oil; WCP; oil water activity measurement; power transformer paper insulation; transformer failure; water content laboratory measurement; water content monitoring; water content of paper insulation; Condition monitoring; Insulation; Power transformer insulation; Temperature measurement; Transformers; condition monitoring; insulation; paper insulation; transformer;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2015.7089118
