The power input to a 500 V, 50 Hz, 6 pole 3 phase squirrel cage induction motor running at 975 rpm is 40 KW.  The stator losses are 1 KW and the friction and windage losses are 2 KW. Calculate  (i)   Slip       (ii)   Rotor copper loss     (iii) Mechanical power developed    (iv)  The efficiency.   (A) 0.05, 0.450, 36.9 KW, 91 %             (B) 0.08, 0.80 KW, 37.8 KW, 93 %   (C) 0.025, 0.975 KW, 38.025 KW, 90 %             (D)0 .06, 0.907 KW, 35.6 KW, 95.6 %

Q: 9) Provide one general method to control the speed of an induction motor.

A: The rotor speed (Nr) of an induction motor is given by,𝑁𝑟=(1−𝑠)𝑁𝑠And the synchronous speed is…

Q: A three-phase, four-pole, 208 V, 60 Hz, Y-connected, induction motor has the following parameters,…

A: Given data : 208 v , 60 hz R1 =0.22 X1=0.43Xm = 15 Rc=∞P = 4 R2=0.127X2=0.43Solution (a)rms value of…

Q: A 4 Pole, 50 Three Phase Motor 25 Kg. The meter produces a maximum torque of 1350 Nm per minute. So…

A: Solution : Given data: pole P= 4 , frequency f=50 ,  Three Phase Motor Tm=  25 Kg, produces a…

Q: A 3-phase, 60 Hz induction motor has 2 poles. If the slip is 2% at a certain load, determine  the…

A:

Q: A) Which of the following is/are a part of a 3-phase induction motor? a) stator b) rotor c) both "a"…

A: Problems based on induction motor

Q: 9. The synchronous speed of a three-Phase induction motor depends on the number of magnetic poles in…

A:

Q: A 3-phase, 60 Hz induction motor has 2 poles. If the slip is 2% at a certain load, determine the…

A: Given parameters Frequency = 60 Hz Number of poles = 2 Slip = 2%

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.