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Electric Machine; Check image, all question there. Let’s consider three phase, Y connected, 220 volt (line to line), 7.5 kW, 55 Hz, four pole IM has the following parameter values in Ω/phase referred to the stator: R1=0.294Ω , R2=0.144 Ω, X1=0.503 Ω, X2=0.209 Ω, Xm=13.25 Ω Determine the following for 0.02 slip. a)Electromechanical Torque(Tmech) Electromechanical power(Pmech) b)Maximum electromechanical torque(Tmax),Corresponding speed(nr,max) c)Electromechanical starting torque(Tstart), Corresponding stator load current(I2,start)

Electric Machine; Check image, all question there. Let’s consider three phase, Y connected, 220 volt (line to line), 7.5 kW, 55 Hz, four pole IM has the following parameter values in Ω/phase referred to the stator: R1=0.294Ω , R2=0.144 Ω, X1=0.503 Ω, X2=0.209 Ω, Xm=13.25 Ω Determine the following for 0.02 slip. a)Electromechanical Torque(Tmech) Electromechanical power(Pmech) b)Maximum electromechanical torque(Tmax),Corresponding speed(nr,max) c)Electromechanical starting torque(Tstart), Corresponding stator load current(I2,start)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Electric Machine; Check image, all question there.

Let’s consider three phase, Y connected, 220 volt (line to line), 7.5 kW, 55 Hz, four pole IM has the following parameter values in Ω/phase referred to the stator:

R1=0.294Ω , R2=0.144 Ω, X1=0.503 Ω, X2=0.209 Ω, Xm=13.25 Ω

Determine the following for 0.02 slip.

a)Electromechanical Torque(Tmech) Electromechanical power(Pmech)

b)Maximum electromechanical torque(Tmax),Corresponding speed(nr,max)

c)Electromechanical starting torque(Tstart), Corresponding stator load current(I2,start)

X, X, R, ww i(1) i,(1) R, X_ Fig. Equivalent Circuit of IM Lest's consider three phase, Y connected, 220 volt(line to line), 7.5 kW, 55 Hz. four pole IM has the following parameter values in /phase referred to the stator: R = 0.294 N, R = 0.144 N, X1 = 0.503 N, X2 = 0.209 N, Xm = 13.25 N Determine the following for 0.02 slip a) Electromechanical Torque (Tmech), Electromechanical power (Pmech) b) Maximum electromechanical torque (Tmaz), Corresponding speed (n, maz ) C) Electromechanical statrting torque (Tstart), Corresponding stator load current (I, start) a. Tmech = 33.2165 N. m, Pmech 5624.6 W, n,maz 1333.51 rpm, Tmaz = 126.956 N. m, I2 start = 150.265 A, Tstart 56.4528 N b. Tmech = 33.3705 N. m, Pmech 7293.87 W, n7,maz 950.539 rpm, Tmaz = 153.768 N. m, I2,start = 175.257 A, Tztart 70.2798 c. Tmech 35.4105 N. m, Рпеch 3933.77 W, nmaz = 919.728 rpm, Tmaz = 154.791 N. m, I2start = 125.567 A, Ttart = 72.5229 . d. Tmech = 35.4105 N. m, Pmech = 7872.83 W, n,maz = 825.827 rpm, Tmaz = 154.758 N.m, Istart = 145.657 A, Ttart = 73.7912 e. Tmech = 35.2537 N. m, Pmech 2353.62 W, ny, maz 925.793 rpm, Tmaz = 220.437 N. m, I2 start = 115.562 A, Ttart = 57.7327
Transcribed Image Text:X, X, R, ww i(1) i,(1) R, X_ Fig. Equivalent Circuit of IM Lest's consider three phase, Y connected, 220 volt(line to line), 7.5 kW, 55 Hz. four pole IM has the following parameter values in /phase referred to the stator: R = 0.294 N, R = 0.144 N, X1 = 0.503 N, X2 = 0.209 N, Xm = 13.25 N Determine the following for 0.02 slip a) Electromechanical Torque (Tmech), Electromechanical power (Pmech) b) Maximum electromechanical torque (Tmaz), Corresponding speed (n, maz ) C) Electromechanical statrting torque (Tstart), Corresponding stator load current (I, start) a. Tmech = 33.2165 N. m, Pmech 5624.6 W, n,maz 1333.51 rpm, Tmaz = 126.956 N. m, I2 start = 150.265 A, Tstart 56.4528 N b. Tmech = 33.3705 N. m, Pmech 7293.87 W, n7,maz 950.539 rpm, Tmaz = 153.768 N. m, I2,start = 175.257 A, Tztart 70.2798 c. Tmech 35.4105 N. m, Рпеch 3933.77 W, nmaz = 919.728 rpm, Tmaz = 154.791 N. m, I2start = 125.567 A, Ttart = 72.5229 . d. Tmech = 35.4105 N. m, Pmech = 7872.83 W, n,maz = 825.827 rpm, Tmaz = 154.758 N.m, Istart = 145.657 A, Ttart = 73.7912 e. Tmech = 35.2537 N. m, Pmech 2353.62 W, ny, maz 925.793 rpm, Tmaz = 220.437 N. m, I2 start = 115.562 A, Ttart = 57.7327
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