What is the best approach to isolate a small load sensitive to harmonics from a

Question

What is the best approach to isolate a small load sensitive to harmonics from a very large load, which produces high harmonic currents?

a. Use a ferro-resonant transformer for the sensitive load

b. Increase the size of the neutral conductors to minimize the effect of the harmonics

c. Shorten the distance between the service panel and the loads to reduce the voltage produced by the harmonic currents

d. Provide a separate return for each phase of the high harmoic generating load and increase the size of this load's phase supplies

Explanation / Answer

a is correct .

Ferro resonant tranafomer is used for constant voltage. Whatever be the condition it does not allow the magnetic flux to increase beyond a constant value due to ferroresonance phenomenon. It provides magnetic saturation. Hence mo more volatge is induced.

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