EBK INTRODUCTORY CIRCUIT ANALYSIS
13th Edition
ISBN: 9780100668232
Author: Boylestad
Publisher: YUZU
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Chapter 24, Problem 32P
To determine
The value of total watts, volt-ampere reactive, volt ampere and power factor
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1. A three-phase, four wire, ABC system with an a line voltage of 200 Volt, has three impedances of 25
/45ᴼ in a Delta connection. Determine the line current, true power, reactive power and apparent
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A balanced star load with impedances of 6∟45o ohms is connected to a three-phase, four-wire, 208 volt, ABC system. Find the line currents, the neutral current, the power per phase and the total power (S, P, Q).
The input power to a 3-phase load is measured as 16kW. If the line voltage and power factor of the load are 418 V and 0.6, then the value of line current is
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Chapter 24 Solutions
EBK INTRODUCTORY CIRCUIT ANALYSIS
Ch. 24 - A balanced V load having a 10 resistance in each...Ch. 24 - Repeat Problem 1 if each phase impedance is...Ch. 24 - Repeat Problem 1 if each phase impedance is...Ch. 24 - The phase sequence for the Y-Y system in Fig....Ch. 24 - Repeat Problem 4 if each phase impedance are...Ch. 24 - Repeat Problem 4 if each phase impedance is...Ch. 24 - For the system in Fig. 24.43, find the magnitude...Ch. 24 - Computer the magnitude of the voltage EAB for the...Ch. 24 - For the Y-Y system in Fig. 24.45: a. Find the...Ch. 24 - For the Y-Y system of Fig. 24.46 the impedance of...
Ch. 24 - A balanced load having a 20 resistance in each...Ch. 24 - Repeat Problem 11 if each phase impedance is...Ch. 24 - Repeat Problem 11 if each phase impedance is...Ch. 24 - The phase sequence for the Y- system in Fig....Ch. 24 - Repeat Problem 14 if each phase impedance is...Ch. 24 - Repeat Problem 14 if each phase impedance are...Ch. 24 - Prob. 17PCh. 24 - For the connected load in Fig. 24.49: a. Find the...Ch. 24 - A balanced V load having a 30 resistance in each...Ch. 24 - Repeat Problem 19 if each phase impedance is...Ch. 24 - Prob. 21PCh. 24 - Prob. 22PCh. 24 - Prob. 23PCh. 24 - Repeat Problem 22 if each phase impedance is...Ch. 24 - Prob. 25PCh. 24 - Prob. 26PCh. 24 - Prob. 27PCh. 24 - The phase sequence for the - system in Fig....Ch. 24 - Repeat Problem 28 if each phase impedance is...Ch. 24 - Repeat Problem 28 if each phase impedance is...Ch. 24 - Prob. 31PCh. 24 - Prob. 32PCh. 24 - Prob. 33PCh. 24 - Find the total watts, volt-amperes reactive,...Ch. 24 - Prob. 35PCh. 24 - Find the total watts, volt-amperes reactive,...Ch. 24 - Find the total watts, volt-amperes reactive,...Ch. 24 - Prob. 38PCh. 24 - Prob. 39PCh. 24 - Find the total watts, volt-amperes reactive,...Ch. 24 - A balanced, three-phase, -connected load has a...Ch. 24 - A balanced, three-phase, Y-connected load has a...Ch. 24 - Find the total watts, volt-amperes reactive,...Ch. 24 - The Y-Y system in Fig. 24.53 has a balanced load...Ch. 24 - Prob. 45PCh. 24 - Prob. 46PCh. 24 - Repeat Problem 46 for the network in Fig. 24.47.Ch. 24 - For the three-wire system in Fig. 24.55, properly...Ch. 24 - Sketch three different ways that two wattmeters...Ch. 24 - For the Y- system in Fig. 24.56: Determine the...Ch. 24 - For the system in Fig. 24.57: Calculate the...Ch. 24 - For the three-phase, three-wire system in Fig....
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- The c-phase voltage of a balanced three-phase Y-connected system is 450 −25° V. If the phase sequence is negative, what is the value of VAB?arrow_forwardTwo wattmeters are used to measure the total power drawn by a balaced delta connected load. If the wattmeters read 1200 W and 800 W respectively, and the line to line voltage is 208 V, solve for the impedance per phase of the load.arrow_forwardIn a 3-phase star connected system, prove that VL =square root of 3 Vph , by considering the line voltage (VBR = VB - VR ) with the help of necessary phasor diagram.arrow_forward
- 28. The impedances are mesh-connected to a symmetrical three-phase, 40-V, 50, Hz supply of phase sequence RYB. Z1=(5+j10)ohm is connected between lines R and Y Z2=(5+j5)ohm is connected between lines Y and B Z3= (6+j4)ohm is connected between lines 8 and R. Two wattmeters connected to measure input have their current coils in lines R and Y respectively. Calculate the line currents and the wattmeter readings. (195.5 A, 79.4 A, 43.4 A; 39.8 kW, 9.6 kW] Answers.arrow_forwardTwo wattmeters are connected to a 3 phase, 3 wire positive sequence system with a 100 Voutput supplies a balanced delta connected load with impedance of 20 cis 40°. Calculate the: (a) Phase and Line currents(b) Readings of the two Wattmeter(c) Draw the Phasor diagram of the currentsarrow_forwarda 400-v, 50hz, 3-phase supply has 100 ohms connected between lines A & B, 318 mH connected between lines B and C and 31.8uF connected between lines C and A. Find the current in line C, assume a phase sequence ABC.arrow_forward
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