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Does Square D believe it is admissible to feed a low voltage dry type distribution transformer with a phase angle fired SCR Controller?

Square D low voltage dry type distribution transformers are designed to be fed with a utility sine wave. Simulated sinewaves are not acceptable. An installation lacking a utility sine wave input is a misapplication and voids the warranty on the product. Square D may be able to offer a custom designed unit to be fed from the non-utility sine wave source, for which there are special considerations. For support, contact your Field Office and ask them to submit a ``The Form`` request for special product. It will be necessary for the customer to supply a ``snapshot`` of the energizing waveform to Square D engineers for evaluation.

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