Winding resistance test of transformer

Electrical Testing Talk Apparatus Testing
, ,
1

Hey good morning everyone!

I was trying to figure out how to figure out how many amps do you push to the high side and low side of the xfmr. What formula do you use or how do you figure out.

Thank you

1 Like
2

I did a Megger webinar and as I recall they said you should use 10% of rated current, so that’s what I go with now.

1 Like
3

Hi
Injection is by DC and it shall not exceed 10% of rated current
You can do 1% or more but not exceeding 10% and make sure uou de magnatize the core after that

All the information avaliable at Cigre 445

1 Like