9.4 A 3-phase, 16-pole, Alternator has a star-connected winding with 144 slotsand 10 conductors per slot. The flux per pole is 0.03 Wb sinusoidally distributedand the speed is 375 rpm. The winding is short chorded by 1 slot. Calculate theno-load terminal voltage.[Ans: 2617.9]

Answered: 9.4 A 3-phase, 16-pole, Alternator has…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter31: Three-phase Alternators

Section: Chapter Questions

Problem 1RQ: What conditions must be met before two alternators can be paralleled together?

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A 25cps single-phase, 8-pole, alternator with 725 mWb flux per pole has 288 slots. The machine coil has 2 turns per coil. In the winding of the armature, the ratio between the chording angle to the fractional pitch is 1/8. Find the voltage between two terminals.
1.) A 6-pole, 3-phase, 60-Hz alternator has 12 slots per pole and four conductors per slot. The winding is 5/6 pitch. There are 0.025 Wb entering the armature from each north pole, and this flux is sinusoidally distributed along the air gap. The armature coils are all connected in series. The winding is wye-connected. Determine the open circuit emf per phase of the alternator. Subject Electrical machine 2
Please solve , last time i got wrong answer
There are 144 slots in a 3-phase, 16-pole, 50 Hz., star connected alternator. There are 4 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 1500 electrical and the flux per pole is 0.05 Weber sinusoidallly distributed. Calculate the emf induced per phase.
There are 160 slots in a 3-phase, 8-pole, 50 Hz., star connected alternator. There are 4 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 150° electrical and the flux per pole is 0.08 Weber sinusoidally distributed. Calculate the emf induced per phase.
Find the rms value of the induced emf per phase of a 10 pole, three phase, 50 Hz alternator with 2 slots per pole per phase and 4 conductors per slot in two layers. The coil span is 150°. The flux per pole is 0.12 Wb (a) 994 (c) 1020 53. (b) 864 (d) 960
A 3-phase 4-pole alternator has a single layer full-pitch winding with 8 conductors per slot. The armature has a total of 36 slots. Determine the voltage between lines when the alternator is driven at 1800 rpm with a flux of 0.05 Wb per pole.
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A 3-phase, 16-pole, 60 Hz star connected alternator has 144 slots and 12 conductors/slot. The flux/pole is 2.48x10-2 Wb is sinusoidally distributed. The coil pitch is 2 slots short of full pitch. Find (a) speed (b) line emf.
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b) Explain the conditions of parallel connection of alternators and how these conditions are fulfilled.

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9.4 A 3-phase, 16-pole, Alternator has a star-connected winding with 144 slots and 10 conductors per slot. The flux per pole is 0.03 Wb sinusoidally distributed and the speed is 375 rpm. The winding is short chorded by 1 slot. Calculate the no-load terminal voltage. [Ans: 2617.9]