In a three-phase supply floating neutral is undesirable because it way give rise to___________?
Correct answer: C. unequal line voltages across the load
- A. high voltage across the load
- B. low voltage across the load
- C. unequal line voltages across the load
- D. minimun voltage across the load
Explanation
With the neutral floating, unequal phase impedances cannot maintain their intended phase-to-neutral voltages, so the neutral point shifts and the load receives unequal line voltages. This can also make one phase voltage dangerously high, but unequal voltages is the direct effect.
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