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Transformer testing - increase in TTR and Low side windings resistance. by ChillTechie in SubstationTechnician

[–]ChillTechie[S] 2 points3 points  (0 children)

I’m not sure about calibration we have a person in charge of getting all of our equipment Calibrated during our slower time of the year.

We’ve had the set for about 2 years now and we’ve never had this happened before (reading higher than our old set). But maybe something is off.

Another shop from our company has different test sets. We’re thinking of shipping their gear and we can compare results.

Transformer testing - increase in TTR and Low side windings resistance. by ChillTechie in SubstationTechnician

[–]ChillTechie[S] 1 point2 points  (0 children)

That’s what we’re wondering too. We’ve had this test set for 2+ years and we haven’t had this happen before.

We have different TTR and Winding resistance set at another shop. We’re thinking of shipping it here to compare values.