RoMan offers a wide range of water-cooled transformers including: MFDC power supplies and AC Transgun transformers, AC Fixture Type and AC Machine Type transformers, and Heavy-Duty Low Frequency DC Power Supplies and Rectifiers—all in various primary voltages, frequencies and secondary voltages to meet different application needs. In addition, we offer accessories such as Safety Ground Reactors, Tap Switches, and Buss Bars for a variety of transformers.