What do you understand by tan delta for a insulating material?

What do you understand by tan delta for a insulating material?
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1 Answer

Answer :

Tan delta measurement is done to find the qualities of insulating material. Tan delta is angle between current due to surface leakage or current due to capacitance and the capacitive current. That is Tan δ = Ir / Ic. 
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What is the purpose of tan-delta measurement?

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Last Answer : Answer: B

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