Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 24, Problem 35P
To determine
The value of total watts, volt-ampere reactive, volt ampere and power factor
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A star connected three phase alternator supplies power to a delta connected resistive load. The alternator has a line voltage of 480V. Each resistor of delta load has 8 ohm of resistance. Find the following values.
Line voltage of the load (VL(load))
Phase voltage of the load (VP(load))
Phase current of the load (IP(load))
Line current delivered by the alternator (IL(alt))
Phase current of the alternator (IP(Alt))
Phase voltage of the alternator (VP(Alt))
True power
16. A wye connected load has a 5L20° ohm impedance per phase is connected across a
120 volts three-phase source. Calculate the line current.
24A
15.45A
41.56A
13.85A
17. A capacitor in series with a 200 ohm resistor draws a current of 0.3 ampere from
120 volts, 60 hz AC supply. What is the value of the capacitor in microfarad?
8.65
7.65
6.75
5.76
18. A capacitor is rated 100 KVAR, 380 V, 50 Hz. What will be its kyar rating at 220V,
60 Hz supply?
50.7
40.22
6.75
57.7
22Most loads are either inductive or capacitive, which of the following is not reactive in
nature?
Motors
PC
Light Bulbs
Sprinkler
23
It is the ratio of measured voltage to the measured current of an electrical load circuit.
resistance
resistance
hot resistance
cold resistance
24. What is the phase sequence of a balance three phase circuit for which Van =
160L30 and Vcn - 160L-90?
abs.
bba
acb
aab
1) What is the phase angle between the phases in an ideal 3-phase system?
Chapter 24 Solutions
Introductory Circuit Analysis (13th Edition)
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....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A 415 V, 57 Hz 3-phase supply is connected to a 3-phase star connected balanced R-L load each of resistance 13.63 ohm and impedance 65.27 ohm. Find the value of inductance in each phase. O 63.83 O 0.18 O 32.63 O 7.19arrow_forwardDetermine the apparent power, active power and reactive power in a series circuit, when the supply voltage is 75 Volt, the current is 1 Amp and the phase angle is 30 lagging. Also, draw a power triangle for the circuit.arrow_forwardThree Impedances each of (8 - j18) are connected in mesh across a three-phase 410V ac supply. Determine the phase current, line current, active power, reactive power drawn from supply. Also draw the Phasor diagram for the mesh connection and marks the Line current ,phase current line voltage and phase angle between phase current and pahse voltage. I phase current (Ip) Line current real power reactive powerarrow_forward
- 15. Two wattmeters are used to measure the power drawn by a balanced three phase load from a 440 V, three-phase source. The wattmeters are connected in lines A and B and reads 10 kW and -2.5 kW. When a capacitor is connected in parallel with the load and the wattmeters reconnected in lines B and C, the wattmeter in line B reads 7.5 kW. What is the power factor of the combined load? A. 33% B. 50% C. 28% D. 72%arrow_forward5. The figure below shows two star connected loads with three phase power. The voltage source is 120Z0°. The loads are Z₁ = 10 + j4 № and Z₂ = 2 +j3 №. The cables are negligible. Calculate: a) the line and phase current. b) the real power from the source. c) the reactive power of the circuit. Is V N Z₁ Z₁ Z₁ Z₂ Z₂ N N Z₂arrow_forwardIn matlab, To obtain voltage and current waveforms from transmission line which tool can be used O a. voltage measurement O b. Three-phase VI measurment c. Series RLC branch O d. Parallel RLC loadarrow_forward
- The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three-phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and ITarrow_forwardThe circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three- phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT RO- SO TO IR Is IT U₁-380 V CARGA 1 P₁ =950 W cos p1=0,5 ind. CARGA 2 P₂=1.140 W cos p₂=1 CARGA 3 P3=760 W cos p3=0,5 cap.arrow_forwardThree-Phase Power Calculationsarrow_forward
- 13. In parallel-connected ac circuit, the total current though the circuit is always equal to the phasor sum of the individual current though each element. True False 14. In a R-C parallel circuit, R=10 ohms and Xc=10 ohms, the applied voltage is leading to the circuit total current by 45 degrees (assumed applied voltage is the reference). True False 15. In a R-C series circuit, applied voltage is in phase with the total current. True Falsearrow_forwardFor the given circuit below a. Calculate E, IR, and IL, in phasor form.b. Calculate the total power factor (leading or lagging) and the average power delivered to the circuit.c. Draw the admittance diagram and draw the phasor diagram of the currents Is, IR, and IL, and the voltage E.arrow_forward15. Two wattmeters are used to measure the power drawn by a balanced three phase load from a 440 V, three-phase source. The wattmeters are connected in lines A and B and reads 10 kW and -2.5 kW. When a capacitor is connected in parallel with the load and the wattmeters reconnected in lines B and C, the wattmeter in line B.reads 7.5 kW. What is the power factor of the combined load? А. 33% В. 50% С. 28% D. 72%arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Fault Analysis in Power Systems part 1a; Author: GeneralPAC: Power System Tutorials;https://www.youtube.com/watch?v=g8itg4MOjok;License: Standard youtube license