Q.3(a) The short circuit MVA at the terminal of generating Station A and B are 1100MVA and 1200 MVA respectively. The generated voltage at each station is 33kV. If these stations are interconnected through a line having a reactance of 1.5 2and negligible resistance, calculate the possible short-circuit MVA at both station.Choose 100 MVA as base.(b) A power system is represented by one line diagram in Figure Q.3(b). Each bus israted at line voltage of 66 kV.The reactance of each component is given in per unit, based 100 MVA and ratedvoltage of the component. Assume that the prefault voltage of each generator isto be 1.0 per unit.Bus impedance matrix with all elements in per unit for the system is given below:j0.138 j0.112 j0.130j0.138 j0.121Zj0.112jo.130 j0.121 j0.160A solid three phase fault occurs at bus 1. Determine:(i)Fault current (in Ampere) and fault level (in MVA) at Bus 1.(ii) Transmission lines current (in Ampere) during fault.If line L23 is connected in parallel with another line with reactance of 0.1 pu (samebase as line L23), recalculate the fault current and fault level at Bus 1. Generator G₁11 kVj0.2 p.u.Generator G211 kVj0.2 p.u.Transformer T₁11/66 kVj0.05 p.u.Transformer T₂11/66 kVj0.05 p.u.todBus 1Line L12j0.1 p.u.Bus 2Figure Q.3(b)Line L13j0.05 p.u.Line L23j0.1 p.u.Bus 3

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(a) The short circuit MVA at the terminal of generating Station A and B are 1100 MVA and 1200 MVA respectively. The generated voltage at each station is 33 kV. If these stations are interconnected through a line having a reactance of 1.5 2 and negligible resistance, calculate the possible short-circuit MVA at both station. Choose 100 MVA as base.

(a) The short circuit MVA at the terminal of generating Station A and B are 1100 MVA and 1200 MVA respectively. The generated voltage at each station is 33 kV. If these stations are interconnected through a line having a reactance of 1.5 2 and negligible resistance, calculate the possible short-circuit MVA at both station. Choose 100 MVA as base.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.18P: Let a series RLC network be connected to a source voltage V, drawing a current I. (a) In terms of...

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