EE 452
Assignment # 4
due by March 24, 2016
1. A three phase , 25 hp, 440 V(L-L) , 60Hz, four pole, induction motor has the following
data:
Rs = 0.50/phase Xs = 1.20 /phase Rr = 0.35/phase Xr = 1.20 /phase
Xm = 25 /phase, neglect core loss, Mechanical los
EE 452
1.
Problem Set #1
Due by January 28, 2016
A non-sinusoidal voltage has a Fourier Series :
V(t) = 10 + 30 Cos(260t+300) + 20 Cos(460t-600) + 25Cos(260t-200)+10 Cos(460t-300)
This voltage is connected to a load which is 10 resistor and 20mH inductor
EE 452
Problem Set #3
Due by March 8, 2016
1. A step-up chopper (boost) is supplying power to a RL load. R= 1.5 . L=
0.8mH. The capacitance C= 50 F. The average load voltage is 75V. The
source voltage is 50V DC. The on time of the switch is 1.5 ms.
i)
ii)
EE 452
1.
Problem Set #2
Due by February 11, 2016
A single phase full wave bridge converter has a source of
120V, 60HZ with RL load. R=10 and L=20mH
a. Determine the rms value of the lowest order harmonic
current in the load.
b. A filter capacitor is conn
EE 452
Assignment # 4
due by
March 24, 2016
1. A three phase , 25 hp, 440 V(L-L) , 60Hz, four pole, induction motor has the following
data:
Rs = 0.50/phase Xs = 1.20 /phase Rr = 0.35/phase Xr = 1.20 /phase
Xm = 25 /phase, neglect core loss, Mechanical los
1.
A single phase full wave bridge converter has a source of 120V, 60HZ with
RL load. R=10 and L=20mH. With a firing angle of 60 degree.
a. Determine the rms value of the lowest order harmonic current in the load.
b. A filter capacitor is connected across
Solutions to problem set 1
Problem 1. A non-sinusoidal voltage has a Fourier Series :
V(t) = 10 + 30 Cos(260t+300) + 20 Cos(460t-600) + 25Cos(260t-200)+10
Cos(460t-300)
This voltage is connected to a load which is 10 resistor and 20mH inductor
connected i