The single-phase equivalent circuit parameters of a 3-phase star-connected asynchronous motor are given below. Total mec
Posted: Fri Apr 29, 2022 8:28 am
The single-phase equivalent circuit parameters of a 3-phase star-connected asynchronous motor are given below.
Total mechanical and friction losses will be neglected.
rated power = 6kW
rated voltage = 400 Vrms line (231Vrms phase-neutral voltage)
rated frequency = 50 Hz
number of poles = 4
r1= 1.2 Ω, x1 = 1.1jΩ r2= 0.6Ω, x2 = 0.8jΩ xm= 11.7jΩ rc= ∞
Working status at rated point:
a) Find two different shifts after the analytical solution and indicate which is the nominal shift
and comment.
b) Draw the shaft power-slip and shaft power-rotor speed graphs of this motor in Matlab. Find the power at the slip value you calculated above. With the value you calculated in option A, Is it compatible, please explain?
Total mechanical and friction losses will be neglected.
rated power = 6kW
rated voltage = 400 Vrms line (231Vrms phase-neutral voltage)
rated frequency = 50 Hz
number of poles = 4
r1= 1.2 Ω, x1 = 1.1jΩ r2= 0.6Ω, x2 = 0.8jΩ xm= 11.7jΩ rc= ∞
Working status at rated point:
a) Find two different shifts after the analytical solution and indicate which is the nominal shift
and comment.
b) Draw the shaft power-slip and shaft power-rotor speed graphs of this motor in Matlab. Find the power at the slip value you calculated above. With the value you calculated in option A, Is it compatible, please explain?