9.2 A 3-phase, 10-pole, star-connected Alternator runs at 600 rpm. It has 120 stator slots with 8 conductors per slot and the conductors of each phase are connected in series. Determine the phase and line emf if the flux/pole is 56 mWb. Assume full pitched coils
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- There are 72 slots in a 3-phase, 8-pole, 50 Hz, star connected alternator. There are 2 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 0.05 Weber sinusoidally distributed. Calculate the emf induced per phase.Please solve , last time i got wrong answerA 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.
- A 3 phase, 10 pole, Y-connected alternator runs at 600 rpm. It has 120 stator slots with 8 conductors per slot and the conductors of each phase are connected in series. Determine the phase and line emfs if the flux per pole is 56 mWb. Assume full-pitch coils.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) 9602.
- A 3-phase 4-pole alternator has 48 stator slots carrying the 3-phase distributed winding. Each coil of the winding is short chorded by one slot pitch. The winding factor is given by9.4 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]A 3-phase, 10-pole alternator has 90 slots, each containing 12 conductors. If the speed is 600 rpm and the flux per pole is 0.1 Wb, calculate the line emf when the phases are (i) star connected (ii) delta connected. Assume the winding factor to be 0.96 and the flux sinusoidally distributed.
- A three-phase, 4-pole alternator runs at 1,800 RPM. Each phase covers two slots under each pole. The full pitch armature coils have 4 turns per coil and there are 2 coil sides per slot. The flux/pole is 6,000 kilolines distributed sinusoidally. (a) What is the distribution factor? (b) Determine the emf per phase. Ans. 0.966; 494VIn a three-phase star connected alternator it is necessary to generate 7200 line voltage at frequency of 50 Hz. by rotating it at 1000 rpm. There are 6 slots per pole per phase in the stator and 20 conductors per slot. Calculate the following. a) Number of poles (2) Useful flux per pole. Assume that the conductors in a phase are connected in series and the winding is the full pitch winding.9.6 A 3-phase. 16-pole Alternator has 192 stator slots with 8 conductors per slot. The conductors of each phase are connected in series. The coil-span is 150 electrical degrees. If the flux per pole is 0.064 Wb sinusoidally distributed, find the phase and line values of no-load voltage, if the stator is star-connected and the required frequency is 50 Hz.