What is the R phase voltage when T1, T6 and T5 are conducting? Consider a star connected R load.

What is the R phase voltage when T1, T6 and T5 are conducting? Consider a star connected R load. Correct Answer Vs/3

They conducting SCRs can be represented as closed switches. The load terminals R and B are connected to the positive bus but the terminal Y is connected to the negative bus. VRN = VBN = Vs/3. VYN = -2Vs/3.
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