POWER SYS. ANALYSIS+DESIGN
6th Edition
ISBN: 9780357700907
Author: Glover
Publisher: INTER CENG
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Textbook Question
Chapter 2, Problem 2.10MCQ
The average value of a double-frequency sinusoid,
(a) 1 (b)
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Chapter 2 Solutions
POWER SYS. ANALYSIS+DESIGN
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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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
- Consider the sinusoids x1[n] = 2 sin(πn +2π/3) ,x2[n] = 3 cos(3πn + 3π/2) −∞ < n < ∞, From their frequencies determine if these signals are periodic, and if so, determine their corresponding periods.arrow_forwardA series RLC combination is connected to an ac source operating at a maximum of 120.0 V and at a frequency of 15.0kHz. The power factor (cos rho)of the circuit is 0.621. The inductance (L) in the circuit has a value of 1.51 mH. (a) Determine the impedance (Z) of the circuit. (b) The average power delivered by the ac source.arrow_forwardThe following circuit is powered by a polyharmonic voltage whose expression is: v(t) = 100+141.sin (1000t) + 70.7.sin (2000t) V. It is requested: a) The expression of the instantaneous current.b) Plot the amplitude and phase spectra of the voltage and current.c) The values of the apparent, active, reactive and distortion powers, justifying the resultsarrow_forward
- Given the time-varying voltage: v(t)= 60 · sin( 377 · t + 60°) Express the voltage as its (RMS) phasor equivalent V.arrow_forwardThe voltage v(t) across the terminal a and b is a sinusoidal voltage having a frequency w = 100 radians/s. When the inductor current i(t) is in phase with the voltage v(t), the magnitude of the impedance Z (in ohm) seen between the terminals a and b is...arrow_forward6.22 Let v1 ¼ 8 sin 100t and v2 ¼ 6 sin 99t. Show that v ¼ v1 þ v2 is periodic. Find the period, and the maximum, average, and effective values of v. Ans: T ¼ 2; Vmax ¼ 14; Vavg ¼ 0; Veff ¼ 5 ffiffiffi 2 p 6.23 Find period, frequency, phase angle in degrees, and maximum, minimum, average, and effective values of vðtÞ ¼ 2 þ 6 cosð10t þ =6Þ. Ans: T ¼ 0:2 s; f ¼ 5 Hz; phase ¼ 308; Vmax ¼ 8; Vmin ¼ 4; Vavg ¼ 2; Veff ¼ ffiffiffiffiffi 22arrow_forward
- The AC voltage is given by a phasor 3.4 L 57 (where 3.4 is the amplitude and 57 is the phase angle in degrees). The angular frequency omega = 100 1/s. What is the actual time dependence of this voltage (provide the phase angle in degrees)? To answer, fill the blanks: v(t) =____*cos (____*t +____);arrow_forwardFor the function v = 12 sin 40, calculate the: a) mean b) root mean square (RMS)Over a range of 0 ≤ Ø ≤ π/4 radians.(Note: the trigonometric identity cos 2Ø = 1-2sin^2 Ø)arrow_forwardA voltage is given by the following expression: v(t) = 550*Sin(377*t + 45) Determine: Amplitude, RMS value, Frequency in Hertz, Phase Angle in Radiansarrow_forward
- Communication Systems Consider the signal w(t) = 6cos(8pt) + 2cos(4pt) Calculate the rms value Wrms and the normalized average power Pw of the signal. Find and plot the power spectral density Pw (f ) of the signal. Find the autocorrelation function of w(t) [Hint: 2cos x cos y = cos(x + y) + cos(x - y) ; 2cos2 x = (1+ cos 2x) ]arrow_forwardIn the following circuit, the supply voltage is defined as V(t) = 325 sin (314t – 30o) and L = 2.2H. Determine the value of the RMS current flowing through the coil and draw the resulting phasor diagram.arrow_forwardfind the phase, frequency, amplitude, period of the sinusoid v(t) = 10sin(377t +45°). Graphically sketch the position of the sinusoidarrow_forward
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