What are the phase voltages when T1, T2 and T3 are conducting? Consider a star connected R load.
What are the phase voltages when T1, T2 and T3 are conducting? Consider a star connected R load. Correct Answer VYN = VRN = Vs/3, VBN = – 2Vs/3
When 6, 1 and 2 are conducting and the others are off. They conducting SCRs can be represented as closed switches. The load terminals R and Y are connected to the positive bus and the terminal B is connected to the nrgative bus. Supply voltage is Vs. VRN = VYN = Vs/3. VBN = -2Vs/3. It should be noted that at any time, the summation of these phase voltages must be zero.