Briefly explain the reason that a three-phase synchronous motor is often connected to a three-phase industrial feeder circuit with a low lagging power factor.

What will be an ideal response?


It has been shown that a synchronous motor operated with an overexcited DC field has a leading power factor. For this reason, a three-phase synchronous motor is often connected to a three-phase industrial feeder circuit with a low lagging power factor. In other words, the synchronous motor with an overexcited DC field helps correct the power factor of the industrial feeder circuit.

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