Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 24, Problem 50P
For the Y-
- Determine the magnitude and angle of the phase currents.
- Find the magnitude and angle of the line currents.
- Determine the reading of each wattmeter.
- Find the total power delivered to the load.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
To have two alternators in parallel,
which of the following factors should
?be identical for both
Frequency O
Voltage, frequency and phase
sequence
Voltage O
Voltage, frequency, phase sequence O
and apparent power
Phase sequence O
An alternator is connected in star. If the phase voltage is 110 V, the line voltage is *
7. In a WYE configuration, Line to Line voltage is
equal to
the phase voltage divided by 1.73
the phase voltage multiplied by 1.73
the phase voltage divided by 1.414
the phase voltage multiplied by 1.414
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
- In a 3-phase - Y- connected generator, each phase voltage has a magnitude of 90 Vrms, what is the magnitude of each line voltage Select one: O a. None of these O b. 90 Vrms O c. 180 Vrms O d. 156 Vrms TOSHIBAarrow_forward1. Calculate the voltage regulation of a 230V, three phase alternator supplying the following loads connected in wye:a. R = 10 ohmsb. R = 3 ohms, XL = 4 ohmsc. R = 4 ohms, XC = 3 ohmsd. XL = 5 ohmse. XC = 5 ohms2. Calculate the value of each capacitor connected in WYE in part b of number 1 to have zero voltage regulation.arrow_forwardAnswer the following problems in a short/long bond paper size. Round off your answer up to 2 decimals, if applicable. Show your complete solution and box your final answer. You may not copy the problem. 1. Two properly connected wattmeters are used to measure the power drawn by a 440 V squirrel-cage induction motor. If the wattmeters read 60 kW and 32 kW, find the line current drawn by the motor. 2. A 3-phase feeder carries two lagging balanced loads. The power drawn in each is measured by a standard two wattmeter method, giving the following readings: First load: W; = 160 kW; W2 = 96 KW and second load: W. = 90 kW; W; = 48 KW. Find the total kVA load on the feeder. 3. Two-wattmeter method is used to test a 25 hp, 230 V, 1800 rpm, 60 Hz, 3-phase induction motor. If the readings of the wattmeters are 13,400 Ww and 7,400 W, find the power factor of the load. 4. The input power to a 3-phase induction motor running without a load is measured by a two wattmeter method. One wattmeter reads…arrow_forward
- Answer the following problems in a short/long bond paper size. Round off your answer up to 2 decimals, if applicable. Show your complete solution and box your final answer. You may not copy the problem. 1. Two wattmeters are properly connected to measure the total power drawn by a balanced 3-phase load. If the readings of the wattmeters are 3 kW and 1 kW, the latter being obtained after reversing the connections of its current coil. Find the pf of the load. 2. A7.5 hp, 230 V, 3-phase induction motor takes a line current of 18 A, when operating at rated output at an efficiency of 90%. Find the reading of a wattmeter when this is inserted to measure the 3-phase power drawn by the T-method. 3. A balanced delta-connected load is connected across a balanced 3-phase, 120 V, 60 Hz, 3-wire system. Two wattmeters are properly connected to measure the power drawn by the load. If the wattmeters read 1500 W and 500 W, find the complex impedance of the load per phase. 4. A balanced, 3-phase, 132 kV…arrow_forwardTwo alternators A and B deliver 100 and 150 A, respectively to a load. If these current are out pf phase by 30 electrical degrees, determine the total current drawn by the load. A) 241.8 A B ) 201.5 A (c) 250.0 A D) 215.4 Aarrow_forward1. Phase voltages = 23120°, of a star-connected alternator are E, E, 2312 - 120°, and E. 2312120°.What is the phase sequence? Compute the line voltages.arrow_forward
- 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 powerarrow_forwardIn balanced star (wye) connected system, the line voltage is 0 707 times the phase voltage phasor sum of two phase voltages 1.414 times the phase voltage phasor difference of two phase voltagearrow_forward26. In a two wattmeter method of power measurement of a balanced load, wattmeter readings are -66.8 kW and -16.8 kW. The reversing switch is operated in the first wattmeter showing -66.8 kW. find (a) total input power and (b) load power factor.arrow_forward
- КА CE3 Khalid Abdulrahman Abdullah Alqasmi O Search 05 Symm. B Share O Comme Slide Show Review View Help Design Transitions Animations 1. A 3- phase, 30 MVA, 33 KV alternator has internal reactance of 4% and negligible resistance. Find the external reactance per phase to be connected in series with the alternator so that steady current on short circuit does not exceed 10 times the full load. Also find Find the full load current. k to add poterarrow_forwardWhen the two-wattmeter method is used to measure the input power of a balanced load, the readings on the wattmeters are 95 kW and 10 kW, the connections to one of the coils on the meter reading 10 kW having to be reversed. Determine (a) the total input power, and (b) the load power factor. Input Power Power Factorarrow_forwardTwo wattmeters are connected to measure the input power to a balanced three-phase load. If the wattmeter readings are 9.3 kW and 5.4 kW determine (a) the total output power, and (b) the load power factorarrow_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
Electrical Measuring Instruments - Testing Equipment Electrical - Types of Electrical Meters; Author: Learning Engineering;https://www.youtube.com/watch?v=gkeJzRrwe5k;License: Standard YouTube License, CC-BY
01 - Instantaneous Power in AC Circuit Analysis (Electrical Engineering); Author: Math and Science;https://www.youtube.com/watch?v=If25y4Nhvw4;License: Standard YouTube License, CC-BY