q2b3 (b) A 480 V, 100 kW, 50 Hz, four-pole, Y-connected synchronous motor has a rated powerfactor of 0.85 leading. At full load, the efficiency is 91 percent. The armature resistanceis 0.08 Q, and the synchronous reactance is 1.0 2. Assume this machine is operating atfull load.Determine the mechanical, core and stray losses, Pmesh + Pcore + Pstray.(v)

Use the power flow diagram and then solve as below

(b) A 480 V, 100 kW, 50 Hz, four-pole, Y-connected synchronous motor has a rated power factor of 0.85 leading. At full load, the efficiency is 91 percent. The armature resistance is 0.08 2, and the synchronous reactance is 1.0 2. Assume this machine is operating at full load. (v) Determine the mechanical, core and stray losses, Pmesh + Pcore + Pstray·

(b) A 480 V, 100 kW, 50 Hz, four-pole, Y-connected synchronous motor has a rated power factor of 0.85 leading. At full load, the efficiency is 91 percent. The armature resistance is 0.08 2, and the synchronous reactance is 1.0 2. Assume this machine is operating at full load. (v) Determine the mechanical, core and stray losses, Pmesh + Pcore + Pstray·

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

solve solve solve
Three resistors R1, R2 and R3 are connected in parallel. R1=1000 Ohm, R2=100 Ohm and R3=700 Ohm. The total resistance is: Select one: a. 321.42 Ohm b. None of the above c. 276.92 Ohm d. 80.45 Ohm e. 235.29 Ohm
What is the K2 value?
P2.5-2 - Questions 5 to 8 A current source and a voltage source are connected in series with a resistor as shown in below Figure . All of the elements connected in series have the same current, is, in this circuit. Suppose that v, = 10 V, i̟ = 2 A, and R = 5 Q. (a) Calculate the voltage v across the resistor and the power absorbed by the resistor. (b) Change the voltage %3D source voltage to v = 5 V and recalculate the voltage, v, across the resistor and the power absorbed by the resistor. + Us is R.
H.w/CoRsider he systam shown below. dotan the closed Loop Franser funchion cG)/26) G2()
NOTE: Solve this as soon as possible, I need this urgently. R1 = 3 R2 = 0 Figure below shows five resistors. Find the equivalent resistance between points (a) F and H and (b) H and G. (Hint: For each pair of points, imagine that a battery is connected across the pair.) R1° R2° (R14R2)ª. H R2 A R1°
2. A wire is 4 in x 0.5 in x 20 ft and a resistivity of 15.75 (2 - CM) ft at 12 °C. Calculate its resistance if the temperature is increased by 50 °C? Take the temperature coefficient of the wire at 15 °C is 0.00375 /OC? 3. The resistance of a carbon coil is 10.5 Q at 60 °C. At what temperature will its resistance decrease to 65 percent if its temperaturo o
3) Calculate the resistance of a cross-sectional ared A Qd mm) and resistivityof(50* Fl the wire is drawn out to three times its original length, times would the resistance increave ? (100m) wire having a How many [500m, 9 times]
2.3 Only use the clockwise loops: ABFGA and BCDEFB. Solve the following circuit by applying Kirchhoff's Circuit Analysis. The resistor values and voltage sources are as follows: R1= 220, R2= 330, R3= 500, R4= 180, R5= 120, E1 150V and E2 = 250v. A R2 B E1 E2 R4 R1 R3 R5 F E D QUESTION PAPER B 2.3.1 Determine the loop equation for the clockwise loop ABEFA; 2.3.2 Determine the loop equation for the clockwise loop BCDEB; 2.3.3 Determine the currents; I1, 12 and la.