Question
Download Solution PDFWhat is the purpose of a neutral conductor in a star-connected three-phase system, and how does it help in maintaining balance?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is: (2) The neutral conductor is used for grounding the system, and it helps in equalizing phase voltages.
Explanation:
In a star-connected three-phase system, the neutral conductor serves several important purposes, including:
Grounding: The neutral conductor is often connected to the ground, providing a reference point for the system. This grounding helps in stabilizing the system and providing a safe path for fault currents to dissipate into the ground.
Equalizing Phase Voltages: In a balanced three-phase system, where loads are evenly distributed, the voltages across each phase are ideally equal. The neutral conductor helps maintain this balance by providing a return path for unbalanced currents. If the system becomes unbalanced due to uneven loads, the neutral conductor allows the system to remain stable and helps prevent excessive voltage variations.
Last updated on Jun 16, 2025
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