I need to know how can I perform "Dew Point Test" on transformer with "Vaisala make DM70" dew point tester. if anyone has video link which demonstrate connection of test equipment's to transformer that will be great help.
Thanks
IN OLTC we observed "OUT OF STEP" Alarm, we have two different transformer, when both are in parallel this type of alarm observed. what's the meaning of this alarm and why it occurs???