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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Question
Chapter 9, Problem 9.56P
(a)
To determine
The bus impedance matrix for each of the three sequence networks.
(b)
To determine
The fault current, the current out of phase C of machine 2 and the line-to-ground voltages at the terminals of machine 2during the fault.
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Power System Analysis and Design (MindTap Course List)
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- At the general three-phase bus shown in Figure 9.7(a) of the text, consider a simultaneous single line-to-ground fault on phase a and line-to-line fault between phases b and c, with no fault impedances. Obtain the sequence-network interconnection satisfying the current and voltage constraints.arrow_forwardFor the system of Problem 9.13, compute the fault current for the following faults at bus 3: (a) a single line-to-ground fault through a fault impedance ZF=j0.1 per unit, (b) a line-to-line fault through a fault impedance ZF=j0.1 per unit, (c) a double line-to-ground fault through a common fault impedance to ground ZF=j0.1 per unit.arrow_forwardConsider the oneline diagram of a simple power system shown in Figure 9.20. System data in per-unit on a 100-MVA base are given as follows: The neutral of each generator is grounded through a current-limiting reactor of 0.08333 per unit on a 100-MVA base. All transformer neutrals are solidly grounded. The generators are operating no-load at their rated voltages and rated frequency with their ENIFs in phase. Determine the fault current for a balanced three-phase fault at bus 3 through a fault impedance ZF=0.1 per unit on a 100-MVA base. Neglect -Y phase shifts.arrow_forward
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