Question { 22305 }
what is tan delta point in a current transformer?
Answer
Tan Delta point in the CT is located at the bottom of the CT. It is provided specifically for TanD testing so that we can find the capacitance and TanD between CT primary and its structure.
It is It is usually connected to ground. But at the time of test, it should be separated from ground and should be connected to LV lead from the TanDelta test set.