A six pole , 3 phase AC generator has 72 slots, the coil span is 12. What is the pitch factor?
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- A four-pole three-phase 50 hertz, star connected AC generator has 12 stator slots. There are 4conductors per slot and a sinusoidally distributed flux per pole of 36mWb. Find the terminal voltageon open circuit. If the coil span factor is 0.85 lagging.When 40V DC voltage is applied to a single-phase AC motor, it draws 1A current. When 200v-50Hz AC is applied to the same motor, it draws 4A current.Calculate the capacity of the capacitor to be connected in parallel to make the power factor 0.9, and in this case the circuit current?There are 160 double wound slots in a 3-phase, 50 Hz., 600 rpm, star connected alternator. Coil span is 15 slots and there are 3 turns per coil. Flux per pole is 0.1120 WB. Calculate (1) emf per conductor (2) emf per coil.
- A 8 pole DC generator has wave winding with 32 coils of 6 turns each. Flux per pole is 0.06 wb. speed is 250 rpm. Find induced voltage of generator.The following information is given in connection with an alternator: slots = 1.44; poles = 8; rpm = 900; turns per coil = 6; ( = 1.8x106; coil span = slots 1 to 16; winding is whole-coiled 3-phase; winding connections = star. What is the voltage generated between terminals? 1,276Vb. 2,210Vc. 635Vd. 1,100VShow solution When the speed of an alternator is changed from 3600 rpm to 1800 rpm, the generated emf per phase will become. ½ 2x 4x 1/4
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