Corpus ID: 14616674

TAN δ ( DELTA ) CABLE TESTING OVERVIEW AND ANSWERS TO FREQUENTLY ASKED QUESTIONS What Is Tan δ , Or Tan Delta ?

@inproceedings{Is2007TAN,
  title={TAN $\delta$ ( DELTA ) CABLE TESTING OVERVIEW AND ANSWERS TO FREQUENTLY ASKED QUESTIONS What Is Tan $\delta$ , Or Tan Delta ?},
  author={What Is and $\Delta$ Tan},
  year={2007}
}
In a perfect capacitor, the voltage and current are phase shifted 90 degrees and the current through the insulation is capacitive. If there are impurities in the insulation, like those mentioned above, the resistance of the insulation decreases, resulting in an increase in resistive current through the insulation. It is no longer a perfect capacitor. The current and voltage will no longer be shifted 90 degrees. It will be something less than 90 degrees. The extent to which the phase shift is… Expand