19. What effect does slip have on rotor reactance of a 3-phase squirrel-cage induction motor? a) rotor reactance increases with increases in slip b) rotor reactance decreases with increases in slip c) rotor reactance is not influenced by slip d) none of the above

Q: The Voltage across any two slip rings of a slip ring induction motor at standstill is 100 V. If the…

A: Given values are - VS-SLine=100VR2Phase=0.4OhmSlips=4%=0.04

Q: When we use this type of single phase induction motors

A: When we use this type of single phase induction motors?

Q: A three phase induction motor is wound for 8 poles and is supplied from 50Hz system. Calculate the…

A:

Q: 16. What is the difference between synchronous speed and rotor speed of a 3-phase squirrel-cage…

A: Here we need to tell difference between synchronous speed and rotor speed to motor

Q: c) What is the physical meaning for each of the following induction motor parameters: R1 „R2 ,Rc ,X1…

A: Induction Generator  Equivalent circuit diagram of induction motor

Q: 3. Describe the Volts per Hertz Control for three phase induction motor.

A: The name volts per hertz control is self explanatory i.e. it clearly states that the ratio of…

Q: field-discharge resistor

A: Synchronous Motor A synchronous motor is an electro-mechanical device that converts electrical…

Q: 2-1 Draw Stator circuits for different types of single phase induction motor (starting method) and…

A: According to our policy, we are authorized to answer one question at a time, since you have not…

Q: A 1100V, 50hz, Delta connected induction motor has a star-connected slip ring rotor with a phase…

A: Given Data: E = 1100 V K = 3.8 R = 0.012 ohm X = 0.25 ohm

Q: Which of the following single-phase split-phase motors performs better while running? a)…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: A three phase induction motor with supply frequency of 60 Hz, 6 poles. If the slip is 2.5 % at a…

A: (a) The synchronous speed of the three-phase induction motor is given by the expression as shown…

Q: Question 1: A 3-phase, 4 pole, 50 Hz induction motor has a slip 1% at no load and 3% full load…

A: The solution is given below

Q: Briefly discuss the operation of an autotransformer starter for three-phase induction motors with…

A:

Q: A three phase induction motor with supply frequency of 60 Hz , 6 poles. If the slip is 5 % at a…

A:

Q: Explain the rotating principle of a single phase induction motor.

A:

Q: Explain why single phase Induction motor is NOT self-starting?

A: Single phase Induction motor is also known as Fractional HP and Fractional KW motors. Single phase…

Q: Explain in details why does the rotor of the three phase induction motor rotate, then determine the…

A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…

Q: Analyse the reason behind the positive and negative torques produced by three phase synchronous…

A: In a three-phase synchronous motor. The stator is supplied with the three-phase ac while the rotor…

Q: In a 3-phase, slip-ring induction motor, the open circuit voltage across slip-rings is measured to…

A:

Q: Calculate the steps in a 5-section rotor starter induction motor. for a 3-phase Maximum starting…

A:

Q: Suppose a three phase induction motor is running a load; you need a sudden braking of the induction…

A: As given motor is running a load when three phase supplied is given. Assume motor is delta…

Q: In a single phase induction motor running at a slip of 5 % with reference to forward field, the slip…

A:

Q: What are the effects of slip in the slip-ring induction motor? A. No effects B. Changes the change…

A: Given statement:→What are the effects of slip in the slip-ring induction motor.given options to…

Q: Complete the blank If a 3-phase induction motor has synchronous speed of 1200 rpm and the frequency…

A: Synchronous speed (Ns)=1200 rpm Frequency(f)=60 Hz Ns=(120f)/P Where P= number of pole. (Ns)(P)=120f

Q: Explain the D.C resistance test to find the value of stator resistance of the star and delta…

A: DC Resistance Test:In the event that a DC voltage is applied to the stator terminals, there will be…

Q: Give impacts of split phase induction motor on users

A: The  induction motor of split phase type is a single-phase induction motor having a starting or the…

Q: T or F, modify the wrong part if False, please underline twice your answer if True or False.  The…

A: The solution is given below

Q: 2-The speed of a slip-ring induction motor cannot be controlled by: (a) Rotor resistance control.…

A: B)pole changing method We can control the speed of induction motor with help of rotor resistance and…

Q: Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring…

A: Answer

Q: Which of the following type of motor isn't normally reversible? A. Repulsion-induction B. Shaded…

A: to identify and mark the option which is not reversible

Q: When a load is applied to a three-phase squirrel cage induction motor, the rotor speed will…

A: If load on three phase induction motor is applied then the power demand is increases and if power…

Q: A three phase 6 pole , 50 Hz induction motor has a slip of 1 % at no load and 3% at full load. Find…

A:

Q: Which of the following phase sequence of harmonics causes torque pulsing (parasitic torque),…

A: Choose the correct option     Which of the following phase sequence of harmonics causes torque…

Q: Which of the statement is true about 3- phase induction motor (IM) ? Ns: Synchronous speed

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: List the different types of stray load losses in an induction motor.

A: Stray load losses are lossed whose exact value can not be determined.

Q: At standstill condition , the slip of induction motor is 1. Select one: O True O False

A: Given  At standstill the slip of induction motor is 1

Q: Q1)A 3 phase induction motor is wound for 6 poles and is supplied from 50-Hz system. Calculate 1.…

A: as per our guidelines we are supposed to answer?️ only one question. Kindly repost other questions…

Q: 25)I) i) Explain why the rotor speed of induction motor is less than the Synchronous Speed?

A: The induction motor do not run at the synchronous speed. The rotor speed is less than the sped of…

Q: 5- The rotor voltage per phase of a slip-ring star connected induction motor is 289.5 V. The rotor…

A:

Q: A 3 phase induction motor is wound for 6 poles and is supplied fromn 50-Hz system. Calculate 1) the…

A: Consider the formula for the speed of the rotor as, Ns=120FP

Q: IM

A:

Q: In a three phase induction motor, voltage between the slip rings at standstill is 50 V. At full load…

A: According to the question,  given, voltage between the slip rings at standstill = 50 V full load the…

Q: Discuss why the starting torque of a three phase wound rotor induction motor is higher per amperage…

A: Discussion is why  starting torque of 3 phase wound motor is greater than squirrel cage induction…

Q: With neat diagram explain slip ring rotor of 3-phase induction motor. Also draw and explain the…

A: 3-Phase slip ring Induction motor- 3-Phase induction machine- When three-phase stator displaced by…

Q: O Explain the reason for that The induced torque of the motor is zero at synchronous speed.

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

Q: 18. What is the frequency on the rotor of a 3-phase squirrel-cage induction motor, when the rotor is…

A: When the rotor is at standstill condition, the speed of the rotor is zero. So, the value of slip is,…

Q: A three phase, 50 Hz, 4 pole slip ring induction motor runs at 1455 rpm on full load. The rotor…

A: Given, f=50 HzP=4Nr=1455 rpmR2phase=0.2 Ω

Q: Three phase induction motor Leakage Reactance five times Resistance for stator and rotor and…

A: Three phase induction motor Leakage Reactance five times Resistance for stator and rotor and…

Q: A three phase, 50 Hz, 4 pole slip ring induction motor runs at 1455 rpm on full load. The rotor…

A: Frequency is given f = 50 Hz Number of poles P = 4 Synchronous speed is given by,…

Q: 20. A three phase, 50 Hz induction motor has 8 poles. If the full load slip is 2.5%, determine (i)…

A:

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.