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  1. ralawneh

    Traces of Ethane C2H4 & Acetylen C2H2 in new / not yet energized transformer .

    I would like to thank all for the valuable comments . Regarding doubt in sampling these values are after repeating sampling, we are very familiar with DGA sampling so no doubt on this subject. The size of transformers as follows: 1. 2000 kVA 34.5 kv/480 V Sealed type transformer we found...
  2. ralawneh

    Traces of Ethane C2H4 & Acetylen C2H2 in new / not yet energized transformer .

    We have three transformers kept at site for more than 3 years not energised and when DGA samples taken we noticed traces of Ethane C2H4 ( 117 ppm ) & Acetylene C2H2 ( 3 ppm ) , what cloud be the reasons ? any risk to energise transformers ? is it necessary to change oil ? We are thinking to...

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