the effects of 3 winding transformer models on analysis & protection of Mine Power system.

Its basically describing the effects of 3 winding transformer models on analysis & protection of Mine Power system.User can easily understand how to explain Primary-Secondary-tertiary winding impedance and their relations, therefore.describing the comparison between correct and in correct models and respective error in Voltage magnitudes of bus bars, first cycle fault current..this document also describes temperature effects and higher order transformer model..