A 3-phase transformer is connected Y-Y with power connected to the high side ($V_{HS(line)}$). The low side line voltage $V_{LS(line)}$ is ____. ? $V_{LS(line)} = \frac{V_{HS(line)}\sqrt{3}}{a}$ ? $V_{HS(line)} = \frac{V_{HS(line)}}{a\sqrt{3}}$ ? $V_{LS(line)} = \frac{V_{HS(line)}}{a}$ ? $V_{LS(line)} = V_{HS(line)} \times a$
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Step 1: For a Y-connected side, line-to-line voltage = sqrt(3) × phase (line-to-neutral) voltage, so V_HS(line) = sqrt(3)·V_HS(phase) and V_LS(line) = sqrt(3)·V_LS(phase). Show more…
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