In forward motoring operation of a DC Drive.................................. a. The back emf is greater than terminal voltage b. The back emf and terminal voltage are same c. The back emf opposes the terminal voltage d. The back emf is in same direction of terminal voltage

Q: Fill in the following blanks: 1. In order to have sparkless commutation, the brushes should be…

A: 1.In order to have  sparkless commutation, the brushes should be placed along the MNA axis 2.D.C…

Q: A 10 kW, 250 V Shunt motor has an armature resistance of 0.5 ohm and a field resistance of 200 ohm.…

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Q: F-a). Single-phase repulsion motors have......... . a) excellent starting torque b) excellent…

A: a). Single-phase repulsion motors have......... .a) excellent starting torque b) excellent running…

Q: Q2: Choose TRUE or FULSE: 1-The series filed of a short- shunt de generator is excited by armature…

A: As per the guidelines I have to do a maximum of 3 subparts only so I request you to post remaining…

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Q: P-1).. Which of the following determine the amount of torque produced by a single-phase split-phase…

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Q: (b) Briefly describe the main components of load torque in electrical drives.

A: The explanation is as follows.

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Q: 8. The armature and shunt field resistance of a 50-kW, 220 V shunt generator is 0.026 ohm and 52…

A: load current = load powerterminal voltage                      = 50000220                      =…

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A: Given:Ef=480 V, Vt=480 V(line to line)Vf=Ef=4803=277 VXd=2.5ΩXq=1.1Ωδ=32°

Q: Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound…

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A:

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A: The solution can be achieved as follows.

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Q: Asiacell In the experiment of finding the parameters of synchronous machine, the ac value of the…

A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again.

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Q: Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound…

A:

Q: The following characteristic curve of IM is for:

A: GIVEN:

DC Series Motors

A DC motor is a type of electric motor which converts electric energy into mechanical energy. The forces that are produced by the magnetic field are what those common types of motors rely upon. Either electro-mechanical or electronic, all types of DC motors have some internal mechanism to change the current direction in part of the DC motors. As the DC motors could be powered from existing DC lighting power distribution systems, these motors were the first form of motors widely used. By changing the strength of the current in its field winding or by using a variable supply voltage, the speed of the DC motors can be controlled over a wide range.