3.17. A 200-turn coil is rotating at a speed of 3600 rpm in a 4-pole generator. Theflux per pole is 2 mWb. Determine (a) the frequency of the induced emf,(b) the maximum value of the induced emf, (c) the rms value of the inducedemf in an ac generator, and (d) the average value of the induced emf in adc generator.

The given question is solved in step by step process.Explanation:

Answered: 3.17. A 200-turn coil is rotating at a…

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

See similar textbooks

Similar questions

A 6 pole wave wound d.c. shunt generator has 500 conductors. A generator delivers 50 kW of power at 250 voltage at full load. The resistance of the field circuit is 125 2. Actual brush shift is 10°. Then find the demagnetizing and cross magnetizing ampere turns per pole and how many additional turns must be wound on each pole to eliminate the demagnetizing effect.
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
What will be the front and back pitches of the 6-pole dc generator with a simplex 2-layer wave winding having 36 conductors and the winding is retrogressive?
question Oc. 0.08 O d. 0.04 Generators using salient pole structure rotors are called turbo-alternators. Select one: O True O False Skewing of rotor conductors in a squirrel cage induction motor reduces
8-pole 3-phase star-connected alternator with 144 grooves in its armature rotates at 900 rpm. There are 12 conductors in each groove in the armature of the alternator. The magnetic flux of one pole is 1.8.10 ^ 6 maxwels. Coils (1-16) were wound in -15 steps. Accordingly, find the phase and interphase voltages induced in the inductor of the alternator. (The speed of the alternator will be taken as synchronous speed ns.)
3. What are the various losses in an induction motor? On whatfactors do they depend?
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.
Please solve , last time i got wrong answer
The total flux per pole in the air-gap of a 50-Hz alternator is 0.06 Wb. The flux-density distribution is given by T. The coil-span is 4/5 of a pole pitch. Determine the rms emf per armature turn. Find also the emf per armature turn when the flux were assumed to be sinusoidally distributed.
Two 30 AC generators are such that one has twice the linear dimensions of the other. The field windings of each are excited to give identical sinusoidal air gap flux density waveform. Both have the same number of stator slots and identical winding patterns. The conductors per slot in big generator in K times that of the smaller one. The value of K to get equal no-load voltage at same frequency is (a)8 (b) 8 1 (d) 7 (c) 4
If two 3-phase induction machines are mechanically coupled with each other. The two machines are supplied by 50 Hz and 60 Hz, respectively. the speed of the combination of both machines will be:
The emf generated in each conductor of a 6-pole simplex wave armature winding is 0.48 V. If the armature has 42 slots and 125 commutator segments, and there are four turns per armature winding element, find the terminal voltage of the generator. a. 288 V b. 264 V c. 192 V d. 240 V

SEE MORE QUESTIONS

Recommended textbooks for you

Electric Motor Control

Electrical Engineering

ISBN:

9781133702818

Author:

Herman

Publisher:

CENGAGE L

Electric Motor Control

Electrical Engineering

ISBN:

9781133702818

Author:

Herman

Publisher:

CENGAGE L

SEE MORE TEXTBOOKS