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- 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 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.Calculate the phase voltages of a three phase star connected 4 pole small alternator having a total flux per pole 0.30 Wb. Each phase has a concentrated winding of 10 full pitched turns and the relative velocity between armature winding and field flux is 1500 rpm.
- 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.A basic one-loop dc generator is rotated at 60 rps. How many times each second does the dc output voltage peak (reach a maximum)?There are 175 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 130° electrical and the flux per pole is 0.04 Weber sinusoidallly distributed. Calculate the emf induced per phase.
- A 6 pole DC wave wound generator has 21 armature conductors with flux per pole is 29 mWb and the e.m.f generated is 73 V, then the speed of the machine is O 3.31 rps O 119.87 rps O 0.33 rps O 39.96 rpsA two-pole dc generator is built with nine turns per coil, 48 coils, and is wave-wound. The field excitation is adjusted to produce 0.00496 weber per pole of flux and is rotated at 183.2 radians per second. Determine the total generated voltageA 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.
- If the number of poles is constant, how to control on the generated frequency of 3 phase synchronous generators.In DC machines the number of parallel paths for a wave winding generator is Select one: O a. Three O b. Two OC. Half the number of poles O d. Equal to Number of PolesA 6 pole DC lap wound generator has 41 armature conductors with flux per pole is 23 mWb and the e.m.f generated is 80 V, then the speed of the machine is O 0.74 rps O 84.84 rps O 7.43 rps 84.84 rps