These voltages will be determined by the connected load past the point of phase loss, but the maximum sum of the two voltages will be the normal voltage That's when the freezers and refrigerators start burning up. In this article, you will learn how this connection is done and the theory behind this. Vab and vbc have the same phase position and are 50% of normal magnitude. We have two existing pt's connected in open delta (connected line to line (a with b) and (c with b)) to a transmission line but we need to measure the line to ground voltage of all three phases.
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