Prepare the winding table for a four-pole dynamo with 24 slots and 24 commutator bars employing simplex lap winding

Q: A dc generator has a field flux of 0.001 Wb and 4 poles. The machine operates with at shaft speed of…

A:

Q: A 6 pole, DC generator has a wave-wound armature containing 30 coils of 5 turns each. Its flux per…

A: Given- Number of poles P=6, DC generator- wave-wound armature, 30 coils of 5 turns each, Number of…

Q: 4. The simplest way to reverse the rotation direction of a three phase AC motor is Use stator CEMF…

A: In this question we will write about the simplest way to reverse the rotation direction of three…

Q: In an induction motor, if the supply voltage is above normal then the machine will operate with High…

A: In this question we need to choose a correct option.

Q: i. What are different types of rotors used in an alternator?

A: There  are mainly two types of rotors used in alternator.

Q: A dc generator is run at 500 rpm. The eddy current losses and hysteresis losses are found to be 100…

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Q: What is the freq. of a 10-pole alternator when running at 360 rpm? (b) At what speeds should a…

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Q: The speed of rotating magnetic field of 8 pole 50 Hz induction motor is?

A: Given, Frequency, f = 50 Hz. The number of pole, P =8

Q: A permanent split single phase induction motor dose not have a squirrel cage rotor

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Q: A four-pole induction motor drives a load at 2575 rpm. This is to be accomplished by using an…

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Q: What is the copper loss in the rotor circuit in kW? An induction motor is running at 40% of the…

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Q: the efficiency of the 1 phase induction motor could be better increased by adding a permanently…

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Q: Armature reaction in an alternator primarily affects

A: Conceptual Background:- Armature Reaction:- Simply put, the armature reaction depicts how the…

Q: What are the following statements are true for a three-phase induction motor? I. Three-phase…

A: We need to select correct statement regarding three phase induction motor.

Q: block diagram fro dc motor refrigerator

A: Electrical machines can be either generator, transformer or motors. They can be either Ac machines…

Q: fill inthe blank : field winding has large numberofturns of thin copper wire.                  a.…

A: Correct option is Shunt. shunt field winding has large number of turns of thin copper wire.  Where…

Q: A wave wound armature of an eight-pole DC shunt generator has 51 slots, each

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Q: If the supply voltage in a three-phase induction motor is reduced by 10%, what will be the…

A: Given, The supply voltage of a three phase induction motor is reduced by 10 %. Let, E1=EE2=0.9E

Q: In dc machines, armature windings are placed on the rotor because of the necessity for…

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Q: What is the difference between wound rotor induction machines and squirrel cage machines

A: The wound rotor (also called as slip ring) and squirrel cage machines are the type of rotor in…

Q: small 4-pole generator with a six-turn rotor coil generates the following voltage wave: e = 169.706…

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Q: Explain why rotator rotates in three phase induction motor

A: Induction Motor: The Induction motor is basically a rotating machine. It converts  Three phase Ac…

Q: The field circuit of a 125-volt dc generator has a resistance of 50 ohms and an inductance of 12.3…

A: The solution is given below

Q: When the field current (If) is increased towards its rated value in the DC shunt generator, the…

A: Given, DC shunt generator, If, field current is increased

Q: There are 180 double wound slots in a 3-phase, 50 Hz., 500 rpm, star connected alternator. Coil span…

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Q: Q10. The rotating machine of Figure Q10 has the following parameters: Lss = 0.18 H, L = 0.06 H, and…

A: Given Source A=2.5 A (DC) Source B =8.5 A(rms), 50 Hz   peak values are Source A=2.5 A Source B=8.52…

Q: Q25) i) What are the factors that the induced voltage in three phase induction motor depends upon…

A: Factors that the induced voltage in three phase induction motor depends upon : 1. Magnitude of…

Q: A 6 pole, 50 Hz, 1-phase Induction Motor runs at a speed of 900 rpm. The frequency of currents in…

A: We need to find out cage current frequency for given motor

Q: what is the conclusion for the concepts of rotating amature and rotating field in an alternator?

A: There are two types of alternators are used one is rotating armature type and the other one is…

Q: A separately excited DC generator has six poles and is running at 1150 rpm. The armature has 120…

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Q: A 110 V, 60 Hz, 6 - pole single phase induction motor 173 hp has the following equivalent circuit…

A: According to the question we have to find the value of input current, power factor and developed…

Q: 93. A 4-pole de generator runs at 1500 rpm. The frequency of current in armature winding is (a) Zero…

A: Given, Total number of pole, P = 4. Speed, N = 1500 rpm.

Q: 1. The operation of Commutator in DC Motor is O a) to convert dc to ac O b) to convert ac to dc O c)…

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Q: The synchronous generator excitation system...

A: There are various generator excitation system-  DC exciter Brushless exciter AC exciter   a- Here…

Q: amature windings commonly used in DC machines a DC shunt generator are wound with a large numbe C…

A: 3. In Dc generator brushes are used to convertalterating current (ac) which is armature wlndingsto…

Q: 4.12 In a compound machine, the shunt field winding has 470 turns/pole, and the series field winding…

A: Given current in the series field winding is 15 A and No. of series field turns per pole is 13  and…

Q: Maximum torque is realized when an armature winding is with the magnetic field at 90° O inline or at…

A: With reference to synchronous machines, the load angle or the power angle is the angle between the…

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.