Find VRY, when T6, T1 and T2 are conducting. Consider a star connected R load.

Find VRY, when T6, T1 and T2 are conducting. Consider a star connected R load. Correct Answer Vs

When 6, 1 and 2 are conducting and the others are off. They conducting SCRs can be represented as closed switches. The load terminals Y and B are connected to the negative bus but the terminal R is connected to the positive bus. Supply voltage is Vs. VYN = VBN = -Vs/3. VRN = 2Vs/3 VRY = VRN – VYN = (2Vs/3) – (-Vs/3) = 3Vs/3 = Vs.
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