Question:
In star connection, line voltage is related to phase voltage as
In star connection, line voltage is related to phase voltage as
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In star connection, \(V_L=\sqrt3V_{ph}\) and \(I_L=I_{ph}\).
Updated On: May 27, 2026
- \(V_L=V_{ph}\)
- \(V_L=\sqrt3V_{ph}\)
- \(V_{ph}=\sqrt3V_L\)
- \(V_L=3V_{ph}\)
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The Correct Option is B
Solution and Explanation
Concept:
In a balanced star-connected three-phase system, line voltage is \(\sqrt3\) times the phase voltage.
Step 1: In star connection: \[ V_{ph} \] is the voltage across one phase winding.
Step 2: Line voltage is the voltage between any two line conductors.
Step 3: The relation is: \[ V_L=\sqrt3V_{ph} \] Therefore: \[ \boxed{V_L=\sqrt3V_{ph}} \]
Step 1: In star connection: \[ V_{ph} \] is the voltage across one phase winding.
Step 2: Line voltage is the voltage between any two line conductors.
Step 3: The relation is: \[ V_L=\sqrt3V_{ph} \] Therefore: \[ \boxed{V_L=\sqrt3V_{ph}} \]
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