Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 26 Jul 2017 My Price 6.00

t current and voltages

For the system of Problem 9.11, compute the fault current and voltages at the fault for the following faults at point F: (a) a bolted single line-to-ground fault; (b) a lineto-line fault through a fault impedance ZF = j0.05 per unit; (c) a double line-toground fault from phase B to C to ground, where phase B has a fault impedance ZF = j0.05 per unit, phase C also has a fault impedance ZF = j0.05 per unit, and the common line-to-ground fault impedance is ZG = j0.033 per unit.

Problem 9.11

Consider the system shown in Figure 9.18. (a) As viewed from the fault at F, determine the The´venin equivalent of each sequence network. Neglect ∆–Y phase shifts. (b) Compute the fault currents for a balanced three-phase fault at fault point F through three fault impedances ZFA = ZFB = ZFC = j0.5 per unit. Equipment data in per-unit on the same base are given as follows:

 FIGURE 9.18

Answers

Maurice Tutor
(5)
Status NEW Posted 26 Jul 2017 05:07 PM My Price 6.00

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