What is the speed of a 100kW, 230V, three-phase, four-pole, 60Hz alternator? a. 450 rpm b. 900 rpm c. 1200 rpm d. 1800 rpm 2. A 6-pole, 3-phase, 60-cycle alternator has 12 slots per pole and four conductors per slot. The winding is 5/6 pitch. There are 2,500,000 maxwells (0.025 weber) 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 of the alternator
What is the speed of a 100kW, 230V, three-phase, four-pole, 60Hz alternator? a. 450 rpm b. 900 rpm c. 1200 rpm d. 1800 rpm 2. A 6-pole, 3-phase, 60-cycle alternator has 12 slots per pole and four conductors per slot. The winding is 5/6 pitch. There are 2,500,000 maxwells (0.025 weber) 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 of the alternator
Chapter39: Synchronous Motor Operation
Section: Chapter Questions
Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...
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In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
Question
What is the speed of a 100kW, 230V, three-phase, four-pole, 60Hz alternator?
a. 450 rpm
b. 900 rpm
c. 1200 rpm
d. 1800 rpm
2. A 6-pole, 3-phase, 60-cycle alternator has 12 slots per pole and four conductors per slot. The winding
is 5/6 pitch. There are 2,500,000 maxwells (0.025 weber) 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 of the alternator
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