what is the block rotor test of three phase induetion motor?     2-draw the equirlent circuit of block rotor test?    3-what are losses in block rotor test of 3-PH induction motor?

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

A: No, the single-phase induction motor cannot be self-started if the auxiliary winding stator winding…

Q: The direction of rotation of Series DC motor can be reversed by interchanging terminal(s). 1) Field…

A: The change in the flow of current divert the direction of the spinning force, due to this the…

Q: Write four disadvantages of stator voltage speed control method of 3phase induction motor.

A: 1. In the power circuit of the AC regulator in the stator voltage control method When there is a…

Q: in Speed Control of Three Phases I.M. by Variation of Rotor Resistance Explain why pole changing…

A: The speed control of the three-phase induction motor by the variation of rotor resistance: - The…

Q: Q1/ a- Fill in the blanks. 1. Field Cu loss is constant for... 2. Pole Shoe serves two purposes...…

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

Q: 2- Three phase induction motor with 8 poles feed from 50Hz power supply, at full load the rotor…

A:

Q: What are the advantages of shunt de motor?

A: A DC shunt motor is the motor which is self excited in nature and the field connection is in…

Q: Explain briefly the capacitor start single phase induction motor, how can you determine the value of…

A: Need to explain about capacitor start single phase induction motor and  find capacitor of maximum…

Q: Which of the single-phase split-phase motors listed below has the smoother running torque

A: Single-phase motor A single-phase motor is an electrical machine that converts Electrical energy…

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: 5.a. A motor which is designed with nonstandard operating characteristics is classified as a A.…

A: Motor:- It converts electrical form of energy into mechanical form of energy. Fans, disk drives,…

Q: Select which of the following winding of Synchronous motor requires AC power supply. O a.…

A: Choose the correct option The winding of synchronous motor require ac power supply ?

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: 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: Please show a step-by-step solution. A 6-pole, 3-phase, 50 Hz induction motor is running at…

A: In this question,  The e.m.f. between slip rings is 280 V. We need to Find the full-load rotor…

Q: in Three Phase Induction Motor Load Test , Plot the relationship between the current and all the…

A: 3-phase Induction Motor- When a three-phase stator displaced by 120 degrees (in the space of 120…

Q: Comment about effect of decrease supply frequency on three phase induction motor speed.

A: Formula for sycronous speed  in induction motor is Ns=120 fp Where f is supply frequency  P is…

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

A: Power factor angle :- angle between voltage and current.  Power factor :- cosine of the power factor…

Q: 1. Write the comparison between DC shunt motor and DC Shunt generator.

A: ll answer the first question since the exact one is not specified please submit a new question one…

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: 30, The rotor of a 50 Hz, 4 pole synchronous motor is directly coupled to rotor of 50 Hz, 6 pole…

A: Given,The parameters of rotor of the synchronous motor,Frequency, f=50 Hz.Pole, P=4.and,The…

Q: in Speed Control of Three Phases I.M. by Variation of Rotor Resistance Give a comparison among…

A:

Q: Sketch armature current (y-axis) - torque (x-axis) characteristics of compound DC motor for three…

A: A compound DC motor connects the armature and fields windings in a shunt and a series combination to…

Q: Q3. Explain why the 1-phae induction motor needs the auxiliary winding? Analyze the different split…

A:

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: Construction, Operation & E... The relative speed of rotor with respect to stator magnetic field of…

A: Given- 3-phase induction motor, Frequency f=50 Hz, Number of poles P=4, Slip S=0.05, To Find- The…

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

A: The given characteristics curve is,

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: The rotor of a 50 Hz, 4 pole synchronous motor is directly coupled to rotor of 50 Hz, 6 pole…

A: Given- 50 Hz, 4 pole synchronous motor, 50 Hz, 6 pole induction motor.   To Find- The value of a…

Stator and Rotor Magnetic Field

The stator and rotor magnetic field is the resulting magnetic field generated by a system of coils that are symmetrically aligned. They are supplied with polyphase currents. The magnetic field is generated by poly-phase (two or more phases) current or single-phase current. In the latter case, two field stator windings are supplied and two resulting electromagnetic fields are generated beyond the stage.