Explain why and how star-delta starting is given to induction motors.

Q: What is the main precaution feature of running the series-wound dc motor Explain with the aid of…

A: The series-wound motor has poor speed regulation as compared to other DC motors. When the shaft of…

Q: What is the disadvantage of slip ring induction motor...?

A: Slip rings are mechanical devices that enable electrical power and signal transfer from a fixed…

Q: In Experiment Star-Delta Starting of 3-Phase Induction Motor, How it was made sure in the control…

A: Star-Delta starter: This method can only be applied to the motor where the stator of the motor is…

Q: List the methods of speed control of three phase induction motor from both stator and rotor sides?

A: The list of methods of speed control of three-phase induction motor from the stator side is as…

Q: What is the function of starter for medium and large size Induction Motors?

A: The motor not turns instantly when supply connected across because it provide a very small impedance…

Q: What is the main difference between modern and classical induction motors?

A: Solution Induction Motors are generally utilized as a part of the modern application because of a…

Q: Explain why an induction motor can not run at synchronous speed?

A:

Q: Explain different methods of speed control of induction motor drive.

A: Different speed control methods of induction motor are as follows- 1. Change the applying frequency…

Q: a) Why do we use asynchronous word for asynchronous (induction) motors?

A: As per the honour code I will only attempt Q1. Kindly repost the other questions again. THANK YOU!!…

Q: "Explain why speed of a DC motor get affected on load, if its series field winding is connected…

A: DC motor emf equation is given as, E=NPϕZ60AN=EA60PϕZk=PZ60ASo, N=EKϕ The torque equation of the DC…

Q: b) Illustrate the reason for the limited operating range of terminal voltage speed control method in…

A: Terminal voltage speed control is a method used to control the speed of an Induction motor. The…

Q: How does the value of stator current density influences on the efficiency of the induction Motor (

A: In this question we will write effect of stator current density on efficiency of induction motor...

Q: Explain the speed control methods of induction motors.   write the answer with computer please

A: Speed control of Induction motor from Stator side: By changing the applied voltage: When the voltage…

Q: Name four different types of electrical motors and suggest an application for each. (a) test results…

A: Given : Mainly we have classified three types of motors   AC motors, DC motors and additional motors…

Q: Why the air gap of an induction motor is made as small possible?

A:

Q: Q: The cumulative compound dc motor can give a high starting torque .why?

A: A cumulative compounds motor is that which when the shunt field flux made by the shunt winding aids…

Q: What is energy efficient induction motor and conventional indcuction motor?

A: Now a days, the demand of electricity is increasing day by day which requires additional power. Due…

Q: Discuss the ratios of no load current, and starting current of three phase induction motor to its…

A: The explanation and answer are as follows.

Q: Explain brefily how induction motors works?

A: Given: Induction motor Required: Working of Induction motor

Q: . Why the rotor flux is lagging with respect to stator flux of an induction motor? 2. How does a…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Why is the power factor of an induction motor calculated at full load/blocked rotor test?

A: Blocked Rotor Test A small voltage applied across the phase  Full load current flow through the…

Q: 11. How does the value of stator winding current density influences on the efficiency of the…

A: When a three phase power supply given to stator winding it circulates a rotating magnetic field…

Q: Can single phase induction motor be self-started? Explain the operation of a capacitor run single…

A: The single-phase induction motor is not self-starting if we don't have auxiliary winding. The main…

Q: What are the speed control methods of induction motor?

A: Speed of the induction motor is given by, From the above equation, the speed of the motor can be…

Q: How does the equivalent circuit of an induction motor simplify to under blocked rotor conditions?…

A: Given: Equivalent Circuit of Induction motor:

Q: Briefly explain why a synchronous motor requires starting mechanism. Is there any starting problem…

A: The synchronous motor requires a starting mechanism because; - over a certain measure, synchronous…

Q: Outline the locked rotor and no load tests for an induction motor

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question No.24 An 4-pole 50 Hz induction motor with rotor resistance of 0.2 Q produces a maximum…

A: Given an induction motor with, Number of pole, P = 4 Frequency, f = 50 Hz Rotor resistance at…

Q: 1. When a synchronous motor is at working condition, is there induced electromotive force in the…

A: This is belongs to synchronous motors

Q: What types of motors contain brushes and a commutator? What is the function of these parts?

A: The kind of motor which contains brushes and commutator are DC motors.

Q: How to address the low starting torque issue of induction motor?

A: At the starting of an induction motor the machine have poor power factor of the rotor circuit and…

Q: 1-) Explain why and how star-delta starting is given to induction motors.

A: In case of induction motors we will use star delta starters .     To turn on or turn off the…

Q: ) Explain why and how star-delta starting is given to induction motors

A: Bartleby has policy to solve only first question.  For solution of rest questions re-upload them.

Q: Attempt the following: a- Draw and explain a completes equivalent circet of Single phase induction…

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

Q: Give a comparison among speed control methods of 3-0 induction motor.

A:

Q: Compensating winding does not solve the problem of armature reaction completely then why do use in…

A: Compensating winding is used in DC motor for eliminating the problems of armature reaction and…

Q: Q1/ Answer Oaly Two : a) Why are induction motors called a synchronous ? b)Does the Cu loss affected…

A: According to question: As only two questions have been asked to solve so here question 'a' and…

Q: If static voltage of a squirrel cage induction motor is reduced to 50 percent of it's rated value,…

A: Given, The static voltage of a squirrel cage induction motor is reduced to 50 percent of it's rated…

Q: Define critical resistance for a shunt generator. Can you describe the electronic speed control…

A: The critical speed of a DC generator is the low speed at which it fails to get excite. It is the…

Q: Explain the Starting of Single Phase Induction Motors?

A: According to the question we have to Explain the Starting of Single Phase Induction Motors

Q: For a shunt DC motor, if the field circuit is open, what will happen? Why? A series DC motor gives…

A:

Q: Make a sketch to show the speed torque characteristics of a shunt and compound motor

A: for the case of the shunt motor as we increase the torque the speed of the shunt motor decreases and…

Q: Why, for a given induction motor, might it be possible to employ direct-on-line starting in one…

A: In this question we will write why different starting methods are employed for induction motor.....

Q: What are the differences in power factor, torque, speed, output power and efficiency of star…

A:

Q: Can we get maximum torque at start in an induction motor, how? Which type of motor develops higher…

A: Condition for Maximum Starting Torque: It can be proved that starting torque will be maximum when…

Q: Draw Torque-speed curve of a three phase induction motor and define Locked rotor torque, Pull- up…

A:

Q: 28/ How can the speed of a shunt dc motor be ontrolled? Explain in detail.

A:

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.