3. A 3-phase, 414 -V synchronous motor takes 53.3 A at a given pf. Re = 0.25; Xe = 3.2; ohm/phase. Calculate the (i) line induced emf and (ii) angular retardation of the rotor when fully loaded at: (a) unity pf (b) 0.8 pf lagging (c) 0.8 pf leading

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3. A 3-phase,
414 -V synchronous motor takes
53.3 A at a given pf. Re = 0.25; Xe = 3.2; ohm/phase.
Calculate the (i) line induced emf and (ii) angular retardation
of the rotor when fully loaded at:
(a) unity pf
(b) 0.8 pf lagging
(c) 0.8 pf leading
(c)
Transcribed Image Text:3. A 3-phase, 414 -V synchronous motor takes 53.3 A at a given pf. Re = 0.25; Xe = 3.2; ohm/phase. Calculate the (i) line induced emf and (ii) angular retardation of the rotor when fully loaded at: (a) unity pf (b) 0.8 pf lagging (c) 0.8 pf leading (c)
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