in Blocked rotor test of three phase Induction motor. Which loss in the machine is significant in blocked rotor test and why?

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

A: In Blocked Rotor Test  shaft of a motor is locked due to which it cannot moves & the rotor…

Q: E-Effect of excitation on armature current and power factor in synchronous motor.

A: CONDITIONS:- Overexcited condition- overexcited condition implies that If is higher than rated value…

Q: Can an induction motor work as a generator ? Why ?

A: An AC motor is an electrical machine that takes AC electrical input energy and produces mechanical…

Q: 1. A self-excited induction generator driven by wind turbine, Explainy the relationship between the…

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

Q: b) Why the power factor of three-phase induction motor low at no-load and increase as applied load…

A: Power Factor = Real Power/Apparent Power,or p.f. = W/VA.Then the cosine of the resulting angle…

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: Is it possible for load of a wye connected induction motor during the blocked rotor test to be…

A: In the blocked rotor test, a low voltage is applied which circulates a full load armature current…

Q: What are the reasons for the drop in terminal voltage of self excited shunt generator When loaded?

A: With increases in the load, the terminal voltages of all dc shunt generators decrease.

Q: In In Star-Delta Starting of 3-Phase Induction Motor What is the relationship between star and delta…

A: Star - Delta starter is used only for the motors which have Delta connected Stator under running…

Q: n Blocked rotor test of three phase Induction motor . How does equivalent circuit of an induction…

A: The single-phase equivalent circuit of an induction motor in blocked rotor test is given below,…

Q: What are the reasons for the drop in terminal voltage of self excited shunt generator When loaded???

A: as we see in the load vs terminal Voltage curve their is drop in terminal voltage as load current…

Q: (15) Two identical 3-phase, 500-V induction machines are mechanically coupled for a back-to-back…

A: Given: Two identical 3-phase, 500-V induction machines are mechanically coupled for a back-to-back…

Q: What kind of interaction in rotor and stator when synchronous speed is exceeded in asynchronous…

A: When the asynchronous machine has a speed greater than the synchronous speed, it acts like an…

Q: In Synchronous Motor Operation Explain V curve by using Phasor diagram

A: V curve of synchronous motor is as follows:

Q: The 'equal area criterion' for the determination of transient stability of a synchronous machine…

A: Given  Equal area criterion assumption

Q: Structure of Stationary Armature Synchronous Machines Synchronous Machines with Protruding Pole…

A: Synchronization equipment is a flexible electric motor (such as a generator or motor) with a…

Q: 1. What is the role of AVR at increase or decrease the load? 2. What is the main difference between…

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

Q: 1-) Compare squirrel cage asynchronous motor and asynchronous motor with winding rotor.

A: Note: As per guidelines we are allowed to answer only the very 1st question. Please repost the…

Q: What do you mean by circle diagram of a 3-phase induction motor? Answer the following: What is its…

A: Circle diagram of induction motor The complete performance of induction motor can be obtained by…

Q: Draw and explain a complete equivalent circuit of single phase induction motor

A:

Q: Using 300 words, explain Synchronous Motor V Curve. Thank you...

A:

Q: xplain the working of Doubly Fed Induction Generator and its characteristics?

A: The working of Doubly Fed Induction Generator and its characteristics

Q: B/ Explain the skewing of rotor in induction machine.

A: There are two types of harmonics present in the induction motor 1) Time harmonics.  2) Space…

Q: Speed control of induction motor explain full theory fast

A:

Q: b) Why the power factor of three-phase induction motor low at no-load and increase applied load…

A: In this question , we will write the reason of low power factor of induction motor at no load..

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

A: Answer

Q: Questions:- 1. What is the basic different between the internal characteristics and the external…

A: As per our policy I have to do the first one only. Internal Characteristics The internal…

Q: For what purpose is the short circuit test performed in asynchronous motor? Please explain.

A: Need to explain about short circuit test in asynchronous motor

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

A: In this question , star delta starting of 3 phase induction motor how star and delta contactors…

Q: a) Does the slip increase as the load increases in an asynchronous motor? Explain what is the reason…

A: let  Ns = synchronous speed N = Actual speed  S = Slip

Q: 3-In order to damp low frequency oscillation of rotor angle which one of the solution suggested?…

A: The rotor angle controller is shown below: The absolute rotor angle determined by the local phasor…

Q: The following characteristic curve represents: VT Select one: O a. The terminal characteristic of…

A: The given characteristics curve is,

Q: In one or two paragraphs, describe the construction and principles of operation for a sixpole 60-Hz…

A: Given:  The construction and principles of operation for a six pole 60-Hz three-phase synchronous…

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

A: In order to implement variable speed drive in an induction motor we have to control the speed. There…

Q: What us the no load speed of DC Shunt motor?

A: As per our policy, i am attempting first question. A DC shunt motor is a type of self-excited DC…

Q: Explain No load test or rotational loss test and Blocked rotor test.

A: Induction motor working Principle When an ac supply is connected to a stator it creates a rotating…

Q: Is it possible for the line-line voltages of a wye connected induction motor during the blocked…

A: Blocked rotor test  Less voltage applied to Each phase of motor Rotor are blocked Full load current…

Q: 1. What is the difference between circle diagram method and equivalent circuit method in calculating…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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

A:

Q: With the aid of a diagram explain the principle of operation of a three phase asynchronous motor.

A: We know that when a three phase supply is provided to the stator, a 3-phase rotating magnetic field…

Q: Explain the start delta starting method of induction motor with proper diagram and mathematical…

A: Types of starting method of induction motor are, Direct On-line Starter Star-Delta Starter…

Q: idle running test of asynchronous motor Locked rotor test of asynchronous motor Briefly describe…

A: The asynchronous motor also knows as Induction motors. In order to determine induction motor…

Q: Prove with equation, why single phase motor is not starting?

A: Pulsating field or double revolving field: Consider a single phase induction motor, Due to…

Q: : For which reasons its not possible to develop rated voltage of d.c shunt generator, both in…

A: In the dc-shunt generator, the rated output dc voltage can never develop neither in loaded condition…

Q: what is the block rotor test of three phase induetion motor?     2-draw the equirlent circuit of…

A: In the blocked rotor test, it should be kept in mind that the applied voltage on the stator…

Q: Which of the following is true for the phasor diagrams drawn according to the ohmic, inductive and…

A: option : b (correct answer)

Q: Which of the following option is false for synchronous motor ? OIt can be made to operate from…

A: Synchronous motor is constant speed motor .when ever load changes  also speed constant

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.