Question: 1 . A three phase, four pole, 5 0 Hz , delta connected induction machine s parameters are given below; Vrated = 4 0 0

1. A three phase, four pole, 50 Hz, delta connected induction machines parameters are given below; Vrated=400 V nrated=1450 rpm Tfriction=2 Nm R1=0.45 X10=1.85 R2=0.55 X20=2.2 Rfe =400 Xm =150 Using T-equivalent circuit and considering steady state, plot the following from zero to double the synchronous speed.
a) Calculate and plot the torque-speed curve of the machine. Specify the breakdown torques for different regions. b) Plot the input current speed curve. c) Plot the variation of the rms induced voltage with respect to speed. d) Plot the copper losses, iron losses and total losses with respect to speed. e) Plot the total input active power and reactive power with respect to speed. f) Plot the efficiency versus speed. g) Plot the power factor versus speed. h) Calculate the prime mover torque and speed for generating (supersynchronous operation)10 kW of power. Find the current, power factor and efficiency for that case. PS. Please use MATLAB to write your scripts and draw your graphs for this question.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!