Sorry about lack of info on "xfmr loading". The xfmr is rated 115KV high side and 35.4KV low. The average PF was around .9 lagging.The oil level was fine.The xfmr has been setting energized for two years,with little or no load on it. It is located in a power plant switchyard with fairly good air...
Our company recently lost a 37.5MVA transformer. Upon investigation,the paper was ruined , piles of rust was found on top of the core we think due to a leaking pressure relieve valve.There had been a steady increase in moisture and dissolved gases over the last two years. Nobody can point to...
