Design the 5 sections of a 6-stud starter for a 3-phase slip-ring induction motor The full-load slip is 2% and the maximum starting current is limited to twice the full-load current. Rotor resistance per phase is 0.03 Ω. (AMIE Winter 2023) Solution Full load slip = 2% Slip at 2 times full load current = 2 x 2 = 4% = 0.04 Resistances of the sections are In a transformer, the core loss is found to be 52 W at 40 Hz and 90 W at 60 Hz measured at same peak flux density. Compute the hysteresis and eddy current losses at 50 Hz. (AMIE Winter 2023). Solution \(\begin{array}{l}{W_i} = Af + B{f^2}\\\frac{{{W_i}}}{f} = A + Bf\\\frac{{52}}{{40}} = A + 40B\\and\\\frac{{90}}{{60}...
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