(Solved): A three-phase, six-pulse controlled rectifier is connected to a highly inductive load so that the l ...

A three-phase, six-pulse controlled rectifier is connected to a highly inductive load so that the load current is essentially dc $(i.e.,{\mathrm{i}}_{\mathrm{o}}(\mathrm{t})={\mathrm{I}}_{\mathrm{a}}=$ constant). The line-to-line input voltages are shown. Draw the waveforms for the output voltage Vo, thyristor currents $\left({\mathrm{i}}_{\mathrm{T}1},{\mathrm{i}}_{\mathrm{T}2},{\mathrm{i}}_{\mathrm{T}3},{\mathrm{i}}_{\mathrm{T}4},{\mathrm{i}}_{\mathrm{T}5},{\mathrm{i}}_{\mathrm{T}6}\right)$ and line current ${\mathrm{i}}_{\mathrm{a}}$ for a delay angle of $?=120^{?}$.