Q1/ Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors per slot connected in two layers. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25.8 x 10 weber.

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Q: ave winding is suitable for voltage and enerator. D low, high O high, high low low

A: Two type of windings are used in DC machines. 1. Lap 2. Wave

Q: In D.C. generator, wave winding is used for O High voltage, high current O High voltage, low current…

A: Answer :- B Option (b) is correct.

Q: Harmonic Frequency 50 Hz 250 Hz 350 Hz 450 Hz Current Amplitude 5A 2.1 A 1.5 A 0.8 A The current…

A: Given,

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A:

Q: A 4-pole DC generator has 1,000 turns on its rotor. It is being turned by a prime mover at 4,000 RPM…

A:

Q: In a D.C. generator if the field resistance is increased, then output voltage will non of these…

A: Dc generator field resistance increases then output voltage will be

Q: The voltage regulation of alternator can be regulated by changing its rotational speed. O True O…

A:

Q: An alternator has 6 poles and runs at 1,000 rpm (a) what is its generated frequency? (b) What must…

A: (a) The speed of the alternator is given by the expression as shown below:  Ns=120fP Plugging the…

Q: A 36- pole alternator is operated at 200 rpm. What frequency is generated?

A: Given data: Pole, P = 36. Speed, Ns = 200 rpm.

Q: A three-phase supply is generated, when three coils are placed apart and the whole rotated in a…

A: Space angle between the windings for n phase supply is 360n where n is the no. of phases

Q: An alternator having 20 poles and running at 600 rpm will generate alternating voltage and current…

A: Frequency of alternating voltage =poles×speed120. Given poles= 20 and speed=600 r.p.m.

Q: In a D.C. generator if the field resistance is increased, then output voltage will decrease remains…

A: In a D.C. generator if the field resistance is increased , then output voltage will.....

Q: How can you tell that the power pumped by an alternator is directly proportional to the load angle?

A: Alternator pumped the active power into the system but it does not give guarantee to pumped reactive…

Q: Need asap. If the generated voltage of a separately excited generator is 100 v at 1200 rpm at what…

A: The solution can be achieved as follows.

Q: A synchronous machine is generating power of 2.6 MW, If the machine can deliver a maximum power of…

A: Given: P=2.6 MWPem=3.7 MW

Q: Equation of an AC voltage with frequency 100 Hz and RMS value 100 V is

A: Given an AC voltage with, Frequency, f = 100 Hz RMS value, Vrms=100 V

Q: A dc 4 pole wave wound generator is running at 1000 rpm having 1200 conductors and flux density is…

A: Given Data: Z = 1200 N = 1000 A = 2 P = 4 flux = 10 mwb

Q: The alternator frequency is direct function of rotational speed and number of poles. O True O False

A:

Q: In capacitive AC circuit voltage is leading current O a. True O b. False

A: In the given questions we need to discuss about the properties of capacitor.

Q: In the figure shown, the voltage and current waveforms of a motor are plotted. What is the phase…

A: Given, The time period of waveform T=0.025 sec The time shift between voltage and current waveform…

Q: Before closing the synchronism switch to connect two alternators in parallel, it is observed in a…

A: Given: A set of 3 lamps

Q: An alternator has 6 poles. At what speed must it be driven to develop 120 cycles? Group of answer…

A: In this question we will find speed of given machine.....

Q: In an alternator, the r field flux is producec O Rotor, Rotor O Rotor, Stator O Stator, Rotor O…

A: In an alternator, the main field is produced by the rotor which is rotating and the armature…

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A:

Q: 3 phase 24 pole yy connected AC generation has attra astator with 48 slots each stats ant The coil…

A: In this question,  We need to choose the correct options What is electrical and mechanical frequency…

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Q: In the experiment set-up, what is the Inductance in the given AC supply R-1500 O a. 0.9 Henry O b.…

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Q: Determine the Total electrical and mechanical degree for an Alternator

A:

Q: Need asap. If the generated voltage of a separately excited generator is 100 v at 1200 rpm at what…

A: The answer as given below:

Q: There is a 110 Vac -60hz generator in series with a 48Vdc battery. For this series connection…

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Q: The rotating part in an alternator is

A: The rotating part of the alternator is rotor(armature) . The Rotor which is also called as armature…

Q: Tor F  AC voltages and current listed on ac products are generally rms values.

A: We need to about the given statement is true or false.

Q: If the resistance of the field winding of a dc generator is increased the output voltage will data…

A:

Q: EXPLAIN BRIEFLY THE SYCHRONOUS ALTERNATOR WHEN OPERATING AT NO LOAD

A:

Q: Calculate the speed and open-circuit line and phase voltages of a 4-pole, 3phase, 50 Hz star-…

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A:

Synchronous Generator

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.