Function of Unit Auxiliary Transformer (UAT): Unit Auxiliary Transformer is nothing but a step down transformer, which is connected parallel to the generator before the generator circuit breaker. Unit Auxiliary Transformer Is used to deliver the power to the motor, fans, pumps, lightings etc. [wp_ad_camp_1] Purpose of Unit Auxiliary Transformer (UAT): Consider above circuit diagram … Continue reading Purpose of Unit Auxiliary Transformer (UAT)