A symmetrical three-phase voltage source, wye connected with Van = 200 Vrms feeds a three phase load through a trio of cables with the impedances shown in the figure. the load is a motor with a power of 100 hp, an efficiency of 60% and a power factor 0.7 inductive. Determine and report the rms amps for the line-current and rms voltage for the line-voltage at the motor. 30 Sym. V-Source Van=200 0.51 0.5 1.21 1.25.18 0.51 1.2;^ m 100hp 7 = 60% 30 PR=0.7 ind

A symmetrical three-phase voltage source, wye connected with Van = 200 Vrms feeds a three phase load through a trio of cables with the impedances shown in the figure. the load is a motor with a power of 100 hp, an efficiency of 60% and a power factor 0.7 inductive. Determine and report the rms amps for the line-current and rms voltage for the line-voltage at the motor. 30 Sym. V-Source Van=200 0.51 0.5 1.21 1.25.18 0.51 1.2;^ m 100hp 7 = 60% 30 PR=0.7 ind

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.42P: A balanced -connected impedance load with (12+j9) per phase is supplied by a balanced three-phase...

See similar textbooks

Similar questions

Under balanced operating conditions, consider the three-phase complex power delivered by the three-phase source to the three-phase load. Match the following expressions, those on the left to those on the right. (i) Realpower, P3 (a) (3VLLIL)VA (ii) Reactive power, Q3 (b) (3VLLILsin)var (iii) Total apparent power, S3 (c) (3VLLILcos)W (iv) Complex power, S3 (d) P3+jQ3 Note that VLL is the rms line-to-line voltage, IL is the rms line current, and is the power-factor angle.
The instantaneous voltage across a circuit element is v(t)=400sin(t+30)volts, and the instantaneous current entering the positive terminal of the circuit element is i(t)=100cos(t+10)A. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos(t) as the reference.
A balanced -connected impedance load with (12+j9) per phase is supplied by a balanced three-phase 60-Hz,208-V source, (a) Calculate the line current, the total real and reactive power absorbed by the load, the load power factor, and the apparent load power, (b) Sketch a phasor diagram showing the line currents, the line-to-line source voltages, and the -load currents. Use Vab as the reference.
Consider a load impedance of Z=jwL connected to a voltage and V let the current drawn be I. (a) Develop an expression for the reactive power Q in terms of ,L, and I, from complex power considerations. (b) Let the instantaneous current be i(t)=2Icos(t+). Obtain an expression for the instantaneous power p(t) into L, and then express it in terms of Q. (c) Comment on the average real power P supplied to the inductor and the instantaneous power supplied.
For maximum average power transfer in the circuit shown in the figure, set the impedance ZLand ZLFind the value of the maximum average power transferred to ? (Can you write the steps in detail in sentences?)
For the maximum average power transfer in the circuit shown in Figure 2, use the impedance ZLand ZLFind the value of the maximum average power transferred to ? (Can you write the steps in detail in sentences?)
A load impedance, Zo = 10 + j 3 ohm, is connected to a source with line resistance equal to 3 ohm, as shown in the figure. Determine the average powers delivered to the load and absorbed by the line. The average powers delivered to the load and absorbed by the line are ________ and ____________ , respectively.
From the circuit given below, How can I find the value of load Z for the maximum power transfer and the maximum average power transferred?
Consider an ac network with an ideal transformer (with turns ratio of n:1) shown below where ZL=(1+j0) is the load impedance and Zs=(7−j24). Ideal transformer turns ratio n is chosen so that the average power delivered to the load is maximized. Under this scenario, the average power delivered to the load is given by
CAN YOU EXPLAIN THE OPERATIONS IN SENTENCES? For the maximum average power transfer in the circuit shown in Figure 2, use the impedance ZLand ZLFind the value of the maximum average power transferred to ?
CAN YOU EXPLAIN THE OPERATIONS IN SENTENCES? The impedance of zl for the maximum average power transfer in the circuit shown in Figure 3and ZLfind the value of the maximum average power transferred to?
what is the mutual inductance in ohms (or the mutual inductive reactance ) between the two mutually-coupled inductors? if circuit to the left of load Z is converted into its Thevenin's equivalent, what would be the magnitude of ZTh in ohms? what is the phase angle of ZTh in degrees? what would be the phase angle of VTh in degrees? what would be the magnitude of VTh in volts if E = 120 V?