What is the ohmic resistance value for primary and secondary coils of my Square D / Schneider Electric LV transformer and is it an indicator of whether the Transformer will operate properly or not?

Issue:
Resistance value on coils of LV transformers

Product Line:
LV Transformers

Environment:
EX, EXN, 9070, LV Transformers

Cause:
Ohmic value for Square D LV transformers

Resolution:
Square D / Schneider Electric does not publish Ohmic resistance values for our LV Transformers since the values are difficult to measure and are not necessarily an accurate indication of whether the Transformer will operate properly or not. Winding tolerances can vary a bit in manufacturing regarding such parameters, which makes their measurement even less useful. A ratio test is a better pre installation step if testing our Transformers. Further, application of rated Primary voltage producing the desired Secondary output voltage is the best test of such a Transformer.

Publicado para:Schneider Electric Mexico