In: Electrical Engineering
What will be the revised nameplate data for a 3-phase, 60Hz,
480V, 30A, 20kW,
1435 rpm totally enclosed fan ventilated induction motor in the
following
circumstances?
1. For the use on 3-phase 50Hz supply without modification
11. After rewinding the motor with coils having half as many turns
using wires
having twice the cross sectional area
111. For a modified construction of the motor with 10% increase of
the active
length