Problems 1. Find the rms values of different harmonic components and total emf per phase for an alternator having following data: 50 Hz, 3-phase, 10 poles, 2 slots per pole per phase, double layer winding, 4 conductors per slot, coil span 150°, flux per pole (fundamental) 0.08, and third harmonic component 15%. All coils of a phase are in series. (Answer. 662.91 V, 53.265 V, 665.05 V) 2. A 6-pole alternator rotating at 1000 r.p.m. has a single-phase winding housed in 3 slots per pole, the slots in groups of three being 20o apart. If each slot contains 10 conductors, and the flux per pole is 2 x 102 Wb, calculate the voltage generated, assuming the flux distribution to be sinusoidal. (Answer. Eph=383.4961 V)

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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1. Find the rms values of different harmonic components and total emf per
phase for an alternator having following data: 50 Hz, 3-phase, 10 poles, 2 slots
per pole per phase, double layer winding, 4 conductors per slot, coil span 150°,
flux per pole (fundamental) 0.08, and third harmonic component 15%. All
coils of a phase are in series.
(Answer. 662.91 V, 53.265 V, 665.05 V)
2. A 6-pole alternator rotating at 1000 r.p.m. has a single-phase winding housed
in 3 slots per pole, the slots in groups of three being 200 apart. If each slot
contains 10 conductors, and the flux per pole is 2 × 10² Wb, calculate the
voltage generated, assuming the flux distribution to be sinusoidal.
(Answer. Eph=383.4961 V)
Transcribed Image Text:Problems 1. Find the rms values of different harmonic components and total emf per phase for an alternator having following data: 50 Hz, 3-phase, 10 poles, 2 slots per pole per phase, double layer winding, 4 conductors per slot, coil span 150°, flux per pole (fundamental) 0.08, and third harmonic component 15%. All coils of a phase are in series. (Answer. 662.91 V, 53.265 V, 665.05 V) 2. A 6-pole alternator rotating at 1000 r.p.m. has a single-phase winding housed in 3 slots per pole, the slots in groups of three being 200 apart. If each slot contains 10 conductors, and the flux per pole is 2 × 10² Wb, calculate the voltage generated, assuming the flux distribution to be sinusoidal. (Answer. Eph=383.4961 V)
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