div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Delta-X Researchissolved gas analysis DGA in transformers is a very successful periodic screening method to identify transformers that may be having problems It is a symptom-based src=https:reader034vdocumentsmxreader034viewer20220519095ffd03a4130b293f552559abhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv