4. The simplest way to reverse the rotation direction of a three phase AC motor is Use stator CEMF Put any two of the stator power phases in parallel Put any two of the stator power phases in series Reverse the electrical connections of any two of the stator phases

Q: 4. Using mesh current analysis, find V2 such that the source current of V₂ is zero. 1512 120 112 PPP…

A: Step 1:When source Current of v2 is zero meash 3 will become open circuit. therefore voltage of v2…

Q: To change the direction of rotation of a series wound DC generator the general rule is to

A: To change the direction of rotation of a series wound DC generator  Note: we always change the…

Q: 6. What is the winding configuration of the three-phase motor? a. delta b. wye c. ungrounded wye d.…

A: In the given questions we need to discuss about the type of winding of three phase motor.

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

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

Q: Armature reaction in an alternator primarily affects

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

Q: 3-3. The first ac power system in the United States ran at a frequency of 133 Hz. If the ac power…

A: Only one individual question is to be answered.

Q: An auxiliary phase winding is used in a single-phase fractional horsepower motor to A. decrease flux…

A: In this question we will write about auxiliary phase winding.....

Q: Rotor resistance of a three-phase induction motor is 0.080 per phase. Maximum torque is available at…

A: We have an equivalent circuit of induction motor with, Maximum torque occurs at 12% slip = 0.12 Slip…

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

A:

Q: In a motor-generator set, calculate the number of poles required in the motor to convert AC 60 Hz…

A: In this question , we will find no of poles of motor with given motor generator set data...

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.