GATE Electrical Engineering (EE) 2016 Shift 1 Solved Paper

The magnitude of three-phase fault currents at buses A and B of a power system are $10\mathit{p}\mathit{u}$ and $8\mathit{p}\mathit{u}$, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system $1.0\mathit{p}\mathit{u}$ is . The voltage magnitude at bus B during a three-phase fault at bus A is $0.8\mathit{p}\mathit{u}$. The voltage magnitude at bus A during a three-phase fault at bus B, in $\mathit{p}\mathit{u}$, is ________.