Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN: 9781305632134
Author: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 2.20P
A circuit consists of two impedances,
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Chapter 2 Solutions
Power System Analysis and Design (MindTap Course List)
Ch. 2 - The rms value of v(t)=Vmaxcos(t+) is given by a....Ch. 2 - If the rms phasor of a voltage is given by V=12060...Ch. 2 - If a phasor representation of a current is given...Ch. 2 - Prob. 2.4MCQCh. 2 - Prob. 2.5MCQCh. 2 - Prob. 2.6MCQCh. 2 - Prob. 2.7MCQCh. 2 - Prob. 2.8MCQCh. 2 - Prob. 2.9MCQCh. 2 - The average value of a double-frequency sinusoid,...
Ch. 2 - The power factor for an inductive circuit (R-L...Ch. 2 - The power factor for a capacitive circuit (R-C...Ch. 2 - Prob. 2.13MCQCh. 2 - The instantaneous power absorbed by the load in a...Ch. 2 - Prob. 2.15MCQCh. 2 - With generator conyention, where the current...Ch. 2 - Consider the load convention that is used for the...Ch. 2 - Prob. 2.18MCQCh. 2 - The admittance of the impedance j12 is given by...Ch. 2 - Consider Figure 2.9 of the text, Let the nodal...Ch. 2 - The three-phase source line-to-neutral voltages...Ch. 2 - In a balanced three-phase Y-connected system with...Ch. 2 - In a balanced system, the phasor sum of the...Ch. 2 - Consider a three-phase Y-connected source feeding...Ch. 2 - For a balanced- load supplied by a balanced...Ch. 2 - A balanced -load can be converted to an...Ch. 2 - When working with balanced three-phase circuits,...Ch. 2 - The total instantaneous power delivered by a...Ch. 2 - The total instantaneous power absorbed by a...Ch. 2 - Under balanced operating conditions, consider the...Ch. 2 - One advantage of balanced three-phase systems over...Ch. 2 - While the instantaneous electric power delivered...Ch. 2 - Given the complex numbers A1=630 and A2=4+j5, (a)...Ch. 2 - Convert the following instantaneous currents to...Ch. 2 - The instantaneous voltage across a circuit element...Ch. 2 - For the single-phase circuit shown in Figure...Ch. 2 - A 60Hz, single-phase source with V=27730 volts is...Ch. 2 - (a) Transform v(t)=75cos(377t15) to phasor form....Ch. 2 - Let a 100V sinusoidal source be connected to a...Ch. 2 - Consider the circuit shown in Figure 2.23 in time...Ch. 2 - For the circuit shown in Figure 2.24, compute the...Ch. 2 - For the circuit element of Problem 2.3, calculate...Ch. 2 - Prob. 2.11PCh. 2 - The voltage v(t)=359.3cos(t)volts is applied to a...Ch. 2 - Prob. 2.13PCh. 2 - A single-phase source is applied to a...Ch. 2 - Let a voltage source v(t)=4cos(t+60) be connected...Ch. 2 - A single-phase, 120V(rms),60Hz source supplies...Ch. 2 - Consider a load impedance of Z=jwL connected to a...Ch. 2 - Let a series RLC network be connected to a source...Ch. 2 - Consider a single-phase load with an applied...Ch. 2 - A circuit consists of two impedances, Z1=2030 and...Ch. 2 - An industrial plant consisting primarily of...Ch. 2 - The real power delivered by a source to two...Ch. 2 - A single-phase source has a terminal voltage...Ch. 2 - A source supplies power to the following three...Ch. 2 - Consider the series RLC circuit of Problem 2.7 and...Ch. 2 - A small manufacturing plant is located 2 km down a...Ch. 2 - An industrial load consisting of a bank of...Ch. 2 - Three loads are connected in parallel across a...Ch. 2 - Prob. 2.29PCh. 2 - Figure 2.26 shows three loads connected in...Ch. 2 - Consider two interconnected voltage sources...Ch. 2 - Prob. 2.35PCh. 2 - Prob. 2.36PCh. 2 - Prob. 2.37PCh. 2 - Prob. 2.38PCh. 2 - Prob. 2.39PCh. 2 - A balanced three-phase 240-V source supplies a...Ch. 2 - Prob. 2.41PCh. 2 - A balanced -connected impedance load with (12+j9)...Ch. 2 - A three-phase line, which has an impedance of...Ch. 2 - Two balanced three-phase loads that are connected...Ch. 2 - Two balanced Y-connected loads, one drawing 10 kW...Ch. 2 - Three identical impedances Z=3030 are connected in...Ch. 2 - Two three-phase generators supply a three-phase...Ch. 2 - Prob. 2.48PCh. 2 - Figure 2.33 gives the general -Y transformation....Ch. 2 - Consider the balanced three-phase system shown in...Ch. 2 - A three-phase line with an impedance of...Ch. 2 - A balanced three-phase load is connected to a...Ch. 2 - What is a microgrid?Ch. 2 - What are the benefits of microgrids?Ch. 2 - Prob. CCSQCh. 2 - Prob. DCSQ
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- element values are selected as R1 = 0.5Ω, R2 = 1Ω, J = 2A, E = 1V, β = 4 α = 1. 10Ω to A-B ends When the Ry load impedance is connected, the power consumed at this load is Norton for the circuit. Calculate using the equivalent.arrow_forward. In the figure below, calculate the current flowing at impedance (4+j4) ohms. Use Mesh analysis.arrow_forwardFor the circuit shown in the figure below, use the mesh current method to find: a) The mesh currents, IA and IB b) The output voltage V2, and draw its phasor diagram C) The input impedance, Zin, d) If w = 314.14 rad/s, specify the values of the passive elements of the input impedancearrow_forward
- Asap, previous answers are wrong! Find max. ave. power transferarrow_forwardTwo balanced Y-connected loads in parallel, one drawing 15 kW at 0.6 power factor lagging andthe other drawing 10 kVA at 0.8 power factor leading, are supplied by a balanced, three-phase,480-volt source.d. ∆-connected capacitors are now installed in parallel with the combined load. Whatvalue of capacitive reactance is needed in each leg of the ∆ to make the source powerfactor unity? Give your answer in W.e. Compute the magnitude of the current in each capacitor and the line current from thesourcearrow_forward1 .Identity nodes and branches 2.Assign branch voltages and currents 3.Perform mesh transformation /write circuit matrix 4.write independent kvl equation 5.find out the impedance matrix Note:Replace the value of voltage from 0V to 10V in the leftmost elementarrow_forward
- 5. Across the HV side of a single phase 200 V / 400 V, 50 Hz transformer, animpedance of 32 + j24Ω isconnected, with LV side supplied with rated voltage &frequency. The supply current and theimpedance seen by the supply are respectively:(A) 20 A & 128 + j96Ω (B) 20 A & 8 + j6Ω (C) 5 A & 8 + j6Ω (D) 20 A & 16 + j12Ω please show me proper solution, thanks.arrow_forwardA customer has four feeder circuits of 220 V, three-phase. The circuits have maximum demand as follows: Circuit No. 1 = 35 A; Circuit No. 2 = 46 A; Circuit No. 3 = 72 A; Circuit No. 4 = 57 A. The diversity factor is 1.5, determine the maximum kVA demand with the customer. Distribution systemarrow_forwardThe following diagram shows a three-wire single-phase circuit of a house. Consider that the refrigerator consumes 8.5 A, with an inductive angle of 45°. TV and kitchen loads are 200W and 8kW respectively. Calculate: a) Current line 1, line 2 and neutral. b) Total power of the circuit....arrow_forward
- Calculate the equivalent impedance of a three-branch parallel network given the following impedance value ?1= 20∠0ºohm, ?2= 47∠45ºohm, ?3= 25∠ − 60ºohm.arrow_forwardThe following information is given in connection with a load circuit consisting of two parallelbranches: Z 1 = 4.8/25 o ohms, Z 2 = 3.75/-72 o ohms, I 1 = 50 amperes, and I 2 = 64 amperes.Calculate: a) the equivalent impedance; b) the total voltage; c) the currents I1 and I2 if the totalvoltage is used as reference; d) the total real, reactive, and apparent powers; e) the overallpower factor.arrow_forwardTwo single transformers are connected in V (open delta) and serving a delta connected impedance load, each impedance is equal to 16cis36.87 ohms. IF the transformer voltages impressed on the impedance are: Vab=240cis0; Vab=240 cis 240; Vab= 240 cis 120, solve for the total kVA drawn by the load.arrow_forward
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