The slip of induction motor 0.04 an frequency of motor 60 Hz. Then rotor current frequency is ?

Q: 6- The injected e.m.f in the rotor of induction motor must have (a) The same frequency as the slip…

A: The explanation is as follows.

Q: The purpose of providing dummy coils in a generator is To provide mechanical balance for the. a.…

A:

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: The synchronous speed of a 3-phase and 6-pole induction motor is 1200 rpm. By keeping the frequency…

A:

Q: In an induction motor, rotor runs at a speed O Lower than the speed of stator field O Having no…

A: In this question we will write speed of induction motor rotor..

Q: Which of the following can be slip of a braking AC induction motor? O A) 1.2 O B) 0.8 O C) 0.8 O D)O

A: Braking is a process for reducing speed of any rotating machine

Q: Discuss two ways of starting a single-phase induction moto

A: Single Phase Induction Motor: Single-phase induction motors are constructed in the same way as…

Q: The synchronous generator will have voltage and frequency depend on O Field current and speed. O…

A: In this question we will write  about synchronous generator  frequency  and voltage...

Q: Starting torque of three phase induction motor is normally full load torque O equal O lower than O…

A: From the torque slip characteristic of 3 phase induction motor

Q: 2. In an induction motor, no-load the slip is generally.....

A: We are authorized to answer the first question since the exact one wasn’t specified. Please submit a…

Q: What is the output speed of AC induction motor in our lab with six poles per phase and its slip is…

A: Given Data: s = 8% P = 6

Q: Tapped field control method is used in a. DC shunt motor b. DC compound motor

A: Tapped field control  is used for controling the speed by adjusting field winding turns.

Q: The starting torque of slip ring induction motor is O Low O Negligible O High O Medium

A:

Q: Characteristics curve of a single phase induction motor (open and closed circuit )

A: We need to  draw characteristics curve of a single phase induction motor (open and closed circuit ).

Q: The stator core of a three phase 1 point induction motor is laminated to reduce * stray load loss…

A: To reduce the eddy current loss, the stator core is laminated & these laminated types of…

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

A: 3. (a) Can single phase induction motor be self-started? Explain the operation of a capacitor run…

Q: The linear induction motor has 98 poles and a pole pitch of 50 cm. Determine the synchronous speed…

A: Given values are - PolesP=98Pole pitch=50cm=0.5mf=50HzSlips=0.25 Given motor is linear induction…

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: If a 3-phase induction motor has synchronous speed of 900 rpm and the frequency in stator is 60Hz,…

A: If a 3-phase induction motor has synchronous speed of 900 rpm and the frequency in stator is 60Hz,…

Q: Which among the given harmonic frequency creates motor torque problems in induction drive system. a.…

A: I have explained in detail

Q: 23 A 50 Hz split-phase induction motor has a resistance of 50 and an inductive reactance of 200 in…

A: In this question,  We need to determine the value of resistance R and capacitance C are connected in…

Q: (a) The typical starting current for induction motor (i.e., at s=1) is five to eight times of the…

A: Induction motor:- It is a AC  motor that runs at lower speed than synchronous speed so it is also…

Q: Synchronous speed of an induction motor is defined as O speed of an induction motor at no load speed…

A: Definition of synchronous speed speed of the revolution of the magnetic field in the stator winding…

Q: How rotor winding is derived the power in the three-phase induction motor? O a. from Single phase…

A: The power flow diagram of a three phase induction motor is shown below,

Q: Q5/A slip-ring induction motor runs at 290 r.p.m. at full-load when connected to 50 Hz supply.…

A: Slip is defined as the ratio of speed differences of synchronous and Rotor speed to the synchronous…

Q: Draw torque vs slip for an induction motor.

A: we need to draw torque vs slip for an induction motor.

Q: Enumerate different losses that take place in a loaded shunt motor.

A: There are different losses in dc loaded shunt motor. Armature resistance lasses. When armature…

Q: The slip is 0.15 for a 4-hp 8-pole three-phase induction motor that operates at 100 Hz. Determine…

A:

Q: 8-pole,3-phase induction motor has a frequency of 50Hz and that in the rotor is 1.5Hz, at what speed…

A: In this question we will find slip and rotor speed...

Q: A centre zero ammeter connected in the rotor circuit of a 6-pole, 50 Hz induction motor makes 30…

A: Given, a center zero ammeter connected in the rotor circuit having Number of poles, P = 6 Motor…

Q: Explain briefly the differences of induction motor & synchronous motor

A: differences of induction motor & synchronous motor.

Q: Differentiate the two types of three-phase induction motor

A:

Q: In which type of induction motor, external resistance can be connected? squirrel cage Slip ring…

A: external resistance can be added based on the construction of motors. For single phase motors there…

Q: ill in the blanks: 1. In a three-phnse induction motor, the number of pales in the rotor winding is…

A: In this question,  Fill the blank as per given questions.  All questions are related to the…

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: Explain the working principle of the synchronous motor and the 3-phase induction motor with the…

A: When a 3 phase electric conductors are placed in a certain geometrical positions (In certain angle…

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 slip of induction motor 0.04 a frequency of motor 60 Hz. Hence the rotor current frequency is ?

A: Given, a induction motor having Slip, s = 0.04 Motor frequency, f= 60 Hz

Q: The difference between synchronous motor and induction motor

A:

Q: Choose the correct option.Marks2) ASsuming an induction motor which is workire at supply frequency…

A: The major classification of AC motors are: Induction motor Synchronous motor. An Induction motor…

Q: Skewing of rotor conductors in a squirrel cage induction motor reduces O a. heat developed while…

A:

Q: 5. The term 'Locked rotor torque' applies When the induction motor speed is zero When the induction…

A: Locked rotor means standstill position

Q: Mechanical power developed in Induction motor is ___than Output power .(estimated time 1 minute) a.…

A: The explanation is as follows.

Q: 26. Is the amount of motor reactive power Q higher than the amount of motor active power P when the…

A: When a three-phase induction motor operates on no-load then the line current drawn by the motor is…

Q: At the time of starting of three phase wound rotor induction motor external rotor resistance must be…

A: External resistance is connected in the three-phase wound rotor induction motor to limit the…

Q: Compare the properties of induction motor and synchronous motor.

A:

Q: The starting torque of slip ring induction motor is High Negligible Medium O Low

A: Slip ring induction motors have major advantages on another induction motor      This starting…

Q: Te frequency of the rotor under the free shaft condition of an induction motor is it 0Hz

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.