2P=4 pole 230V-60Hz three phase round rotor synchronous motor is connected in star. The synchronous frame synchronous reactance is j5 ohms/phase, the induced voltage at the beginning of the phase is 200V, and the power angle is 30°. Calculate the power and moment that the engine will produce by ignoring the armature cover.

Q: 2P=4 poles 230V-60HZ 3-phase round rotor synchronous motor is star connected. The synchronous…

A: Solution:Given Data:=>2P=4Pole=>P=4/2=>=2Pole=>Frequency=60Hz=>Synchronous…

Q: Q- A three-phase 440V, 6 pole, 50Hz, squirrel cage induction motor is running at a slip of 5%. The…

A:

Q: 6. A synchronous motor can be used as a synchronous capacitor when it is (d) over-excited (a)…

A: To feed more active power and less distortion, the High power factor concept is used. To improve the…

Q: A 3 Phase induction motor is wound for 4-poles and is supplied from a 60Hz supply. Calculate the…

A: Given: A three phase induction motor has, P=4f=60 Hz.

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

A:

Q: A 50 Hz, 400 V, 4 pole wound rotor Induction Motor has star connected stator and delta connected…

A: Given data: ZR=0.1+j0.5 Ωn1=650 rpmf=50 HzP=4 Note: As per our policy, I have attempted the first…

Q: The efficiency of 100 kW, 600V, 3 phase synchronous motor is 90%. When the pf is 0.9 leading, what…

A:

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: An 6.6 kV. three-phase star-connected synchronous motor is working at full load and draws a curren…

A: Given Data:A three-phase star-connected synchronous motor with,Line voltage Line current Armature…

Q: Synchronous motor can operate at O a. Unity power factor only O b. Leading power factor only O c.…

A: Synchronous motor is made to operate at all the lagging, leading and unity…

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: 19. What effect does slip have on rotor reactance of a 3-phase squirrel-cage induction motor? a)…

A: ROTOR: Based on the rotor construction, the induction motor is classified into Squirrel cage…

Q: What will be the effect of increasing the mechanical load on a synchronous motor? Assume the field…

A: A synchronous motor is a synchronous machine that converts electrical power to mechanical power at a…

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: P- 2000VA induction motor with a power factor of 0.8 lagging in parallel with a 500VA synchronous…

A: The solution can be achieved as follows.

Q: A three phase, 8 poles induction motor is excited by 60 Hz three phase source. At rated load and…

A: Given Data: P = 8 F = 60 Hz Nr = 879 rmp

Q: Sketch the V curve for a synchronous motor. Label the axes. Indicate where the power factor is…

A: The plots of armature current Ia versus field current If are called V curves. The V curves represent…

Q: 1. In a single-phase induction motor with a starting capacitor, find the reactance value Xc of the…

A:

Q: A 3-phase induction motor is wound for 4 poles and is supplied from 50 Hz system. Calculate (i)…

A:

Q: Determine the voltage dropped across R₂, given: E₁ = 240 V, R₁ = 39, R₂ = 12 №, R₂ = 20 №2, and R₁ =…

A: The circuit diagram,

Q: List several methods for starting synchronous motors. Check all that apply. Start the motor as an…

A: In this question We need to check list of the given option.  List several method for starting…

Q: A certain 60Hz, four-pole split-phase induction motor spins at 1760rpm when running with no torque…

A:

Q: A 3600 rpm, 60 Hz, 13.8 kV synchronous generator has a synchronous reactance of 20 02. The generator…

A: Given: Speed = 3600 RPMFreq = 50HzTerminal Voltage (V) =13.8 KVSynchronous Reactance (Xs) =…

Q: The rotor speed of a 400 V, 50 HZ, 2-pole asynchronous motor is 1450 rpm. Find: a)Synchronous speed…

A: Given: Asynchronous motor Rated voltage V=400 V Frequency f=50 Hz Poles P=2 Rotor speed Nr=1450 rpm

Q: ii) Analyse the superiority of the V/f method of speed control for three phase Induction Motor With…

A: The induction machine for the variable speed applications, especially the cage rotor type, is mostly…

Q: 2P=4 poles 230V-60Hz three phase round rotor synchronous motor is star connected. The synchronous…

A: Given dataTerminal voltage, Induced voltage, Power angle, Synchronous reactance, To find outThe…

Q: E Q2 Machine Q2 )A 3-phase 6-pole 50Hz induction motor has a slip of 2% at no load and of 4% at full…

A:

Q: 2.. A three-phase 60 Hz asynchronous motor runs at 890 rpm at idle and 840 rpm at full load. ww w w…

A: Frequency f= 60Hz Speed 890rpm at idle  Find the number of poles Slip at nominal speed  What happed…

Q: A synchronous motor working at leading powe Synchror Syr The speed regulation of a

A: When synchronous motor operates at leading power factor it supplies reactive poewr to supply and can…

Q: Discus

A:

Q: :Adding inductance to the rotor circuit will .Decrease starting current and starting torque O…

A: The induction motor can be solved easily as shown below .

Q: The angle between rotor teeth of permanent magnet stepper motor is 1.8° and there are five stator…

A: The angle between the rotor teeth of the permanent magnet stepper motor is 1.8°.  The number of…

Q: The rotor speed of a 400 V, 50 HZ, 2-pole asynchronous motor is 1450 rpm. a)Synchronous speed in…

A:

Q: then the frequency f =...

A: Given data: Number of poles (P)= 6 Synchronous Speed (Ns ) = 40 rev/sec Frequency (F)=? -…

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.