For the $$Y$$-$$bus$$ matrix given in per unit values, where the first, second, third and fourth row refers to bus $$1, 2, 3$$ and $$4$$ respectively, draw the reactance diagram. $$${Y_{bus}} = j\left[ {\matrix{ { - 6} & 2 & {2.5} & 0 \cr 2 & { - 10} & {2.5} & 4 \cr {2.5} & {2.5} & { - 9} & 4 \cr 0 & 4 & {4 - 8} & {} \cr } } \right]$$$

GATE 2001 Electrical Engineering PYQ — Power System Analysis

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Power System Analysis · Load Flow

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Load Flow has appeared in GATE Electrical Engineering 30 times across 22 years (2018, 2021, 2023, 2024, 2025, ...).

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y-busreactance diagramadmittance matrixpower systems