7.4. Differential Relays Figure 10: Differential protection for a generator phase winding.
Transformer Protection • Problem 1: For a 45 MVA, 11 kV/66 kV, Y-∆ transformer design a percentage differential scheme. Use 125% overloading to find CT ratios. • What is the minmumrecommended percentage bias?
Harmonic Restraint • Flow Chart
Differential Protection for a Generator Connected in Star with four terminals