POWER SYS. ANALYSIS+DESIGN
6th Edition
ISBN: 9780357700907
Author: Glover
Publisher: INTER CENG
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Chapter 5, Problem 5.63P
Given the uncompensated line of Problem 5.18, let a three-phase shunt reactor (inductor) that compensates for
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2. Contribution of load flow studies to erect new power station?
Problem 3.1: Determine the rms value of voltage induced in an 80-turn coil on
a 30 cm × 25 cm cross-section core with peak flux density 1.7 T alternat-
ing at 60 Hz.
Problem 3.2: Two parallel 1-phase rectangular bus bars 2 cm apart at their cen-
ter lines experience 30,000 A,ms current when a load gets short-circuited.
Determine the peak mechanical force per meter length of the bus bars.
Assume the bus bar shape factor K = 0.85.
Given the uncompensated line of Problem 5.18, let a three-phase shunt reactor (inductor) that compensates for 70% of the
total shunt admittance of the line be connected at the receiving end of the line during no-load conditions. Determine the
effect of voltage regulation with the reactor connected at no load. Assume that the reactor is removed under full-load
conditions.
Reference of problem 5.18
A 60-Hz, 230-mile, three-phase overhead transmission line has a series impedance z = 0.8431/79.04° /mi
and a shunt admittance y = 5.105 x 10
factor and at 215 kV. Determine the voltage, current, and both real and reactive power at the sending end and the percent
voltage regulation of the line. Also find the wavelength and velocity of propagation of the line.
19006 /mi. 'The load at the receiving end is 125 MW at unity power
Chapter 5 Solutions
POWER SYS. ANALYSIS+DESIGN
Ch. 5 - Representing a transmission line by the two-port...Ch. 5 - The maximum power flow for a lossy line is...Ch. 5 - Prob. 5.21MCQCh. 5 - A 30-km, 34.5-kV, 60-Hz, three-phase line has a...Ch. 5 - A 200-km, 230-kV, 60-Hz, three-phase line has a...Ch. 5 - The 100-km, 230-kV, 60-Hz, three-phase line in...Ch. 5 - The 500-kV, 60-Hz, three-phase line in Problems...Ch. 5 - A 40-km, 220-kV, 60-Hz, three-phase overhead...Ch. 5 - A 500-km, 500-kV, 60-Hz, uncompensated three-phase...Ch. 5 - The 500-kV, 60-Hz, three-phase line in Problems...
Ch. 5 - A 350-km, 500-kV, 60-Hz, three-phase uncompensated...Ch. 5 - Rated line voltage is applied to the sending end...Ch. 5 - A 500-kV, 300-km, 6()-Hz, three-phase overhead...Ch. 5 - The following parameters are based on a...Ch. 5 - Consider a long radial line terminated in its...Ch. 5 - For a lossless open-circuited line, express the...Ch. 5 - A three-phase power of 460 MW is transmitted to a...Ch. 5 - Prob. 5.55PCh. 5 - Consider the transmission line of Problem 5.18....Ch. 5 - Given the uncompensated line of Problem 5.18, let...
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- 1 and 2 are connected. Number 1 is already posted in thus page. Please answer. Neglect the simulation thing. I only need the solution.arrow_forward400Ω A k=0.9 600Ω B k=0.8 66Ω 600Ωarrow_forwardQ2. Figure Q2 shows the single-line diagram. The scheduled loads at buses 2 and 3 are as marked on the diagram. Line impedances are marked in per unit on 100 MVA base and the line charging susceptances are neglected. a) Using Gauss-Seidel Method, determine the phasor values of the voltage at load bus 2 and 3 according to second iteration results. b) Find slack bus real and reactive power according to second iteration results. c) Determine line flows and line losses according to second iteration results. d) Construct a power flow according to second iteration results. Slack Bus = 1.04.20° 0.025+j0.045 0.015+j0.035 0.012+j0,03 3 |2 134.8 MW 251.9 MW 42.5 MVAR 108.6 MVARarrow_forward
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- Please provide Handwritten answerarrow_forwardThe one-line diagram of a simple power system is shown in Figure below. The neutral of each generator is grounded through a current-limiting reactor of 0.25/3 per unit on a 100-MVA base. The system data expressed in per unit on a common 100-MVA base is tabulated below. The generators are running on no-load at their rated voltage and rated frequency with their emfs in phase. G Stark Item Base MVA Voltage Rating X' x² 20 kV 20 kV 20/220 kV 20/220 kV 100 0.05 0.15 0.15 0.10 0.10 220 kV 0.125 0.125 0.30 0.15 0.25 025 0.7125 0.15 100 100 0.15 0.05 0.10 0.10 0.10 100 0.10 100 100 Lu La 220 kV 0.15 220 kV 0.35 100 A balanced three-phase fault at bus 3 through a fault impedance Zf= jo.I per unit. The magnitude of the fault current in amperes in phase b for this fault is: Select one: A. 345.3 B. 820.1 C. 312500 3888888 产产arrow_forward5/The phase angle between magnetizing component current and core loss component current is 180o Select one: True Falsearrow_forward
- 1. FIGURE 52 shows the one-line diagram of a simple three-bus power system with generation at bus I. The voltage at bus l is V1 = 1.0L0° per unit. The scheduled loads on buses 2 and 3 are marked on the diagram. Line impedances are marked in per unit on a 100 MVA base. For the purpose of hand calculations, line resistances and line charging susceptances are neglected a) Using Gauss-Seidel method and initial estimates of Va 0)-1.0+)0 and V o)- ( 1.0 +j0, determine V2 and V3. Perform two iterations (b) If after several iterations the bus voltages converge to V20.90-j0.10 pu 0.95-70.05 pu determine the line flows and line losses and the slack bus real and reactive power. 2 400 MW 320 Mvar Slack 0.0125 0.05 300 MW 270 Mvar FIGURE 52arrow_forwardA three-phase symmetrical double circuit line is arranged in a horizontal plane as shown in figure below. Calculate and derive an expression for the transposed line for the inductance. Assume balanced equally distributed loadsarrow_forwardIn a string of suspension insulator with three units, the line unit has 20kV and k=0.35. The voltage across tower unit is........ and across middle unit is.......arrow_forward
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