9.3 A 12-pole, single-phase AC generator has 144 slots, two-thirds of which are wound with 8 conductors per slot. The flux per pole is 42 mWb sinusoidally distributed. The distribution factor is 0.829 and the coil-span factor is unity. If the speed is 500 rpm, find the frequency and the emf generated.
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- Please solve , last time i got wrong answerA 6-pole ,3 phase , 60 cycle alternator has 12 slots per pole and four conductor per slot. The winding is 5/6 pitch. There are 2,500,000 Maxwell ( 0.025 weber ) entering the armature from each north pole, and this flux sinusoidally distributed along the air gap. The armature coils are all connected in series , The winding is wye connected. Determine the open circuit emf of the alternator.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.
- A synchronous generator runs at 250 rpm and generates at 50-Hz. There are 216 slots, each containing 5 conductors arranged in a full-pitched winding for 3-phase star connection. All the conductors of each phase are in series and the flux per pole at no-load sinusoidally distributed over the pole pitch is 30 mWb. Find the emf induced in each phase winding and the terminal voltage.A 4 pole dc generator with duplex wave winding has 48 slots and four elements per slot. The flux perpole is 2.5 x 10 Maxwells and the speed of the prime mover is 30 rpm. What is the average generatedarmature voltage? Neglecting brush drop.AC Machinery Fundamentals A three-phase delta-connected six-pole winding is installed in 36 slots on a stator. There are 150 turns of wire in each slot of the windings. All coils in each phase are connected in series. The flux per pole in the machine is 0.060 Wb, and the speed of rotation of the magnetic field is 1000 r/min. What are the resulting phase and terminal voltages?
- A synchronous generator runs at 250 rpm and generators at 60HZ. There are 240 slots each containing 5 conductors arranged in full-pitched winding for three-phase star connection. All the conductors of each phase are in series and the flux per pole at no-load distributed sinusoidally over the pole pitch is 2.5 x106 Maxwell. What is the emf induced in each winding and the terminal voltage?A resultant air-gap flux of a 16-pole, 3-phase alternator is 0.16 wb/pole and is distributed sinusoidally over the pole. The stator has two slots/pole/phase and 4 conductors per slot are accommodated in two layers. The coil span is 150 electrical degrees. Calculate the emf generated in each phase when the machine runs at 375 rpmA 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; 494V
- 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) 960A dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf * O 10 V O 200 V O 100 V O 20 VA 4-pole dc generator with duplex lap winding has 48 slots and 4 elements per slot. The flux per pole is 2.5 x 106 maxwells and it runs at 1500 rpm. Find the output voltage.