This is an image of a general purpose transformer manufactured by Acme Transformer Corporation in Lumberton, North Carolina. The transformer is catalog number TC-53518-3S and style SR, rated for 25 kilovolt-amperes at 60 hertz, single phase operation. The primary voltage is 240x480 volts with flexible taps, and the secondary voltage is 120/240 volts. The unit weighs 246 pounds and features a winding rise of 115 degrees Celsius with 2.86 percent impedance at 135 degrees Celsius. The transformer has minimum field-installed clearances of 8 inches on the side and 10 inches vertically, and is equipped with a 3-phase outdoor enclosure and H-3100-L insulation system rated as Class 180. The nameplate indicates this is a shielded transformer designed for cleaner power and was manufactured in the United States of America. Additional wiring information is referenced on the inside cover, and autotransformer connections are detailed on drawing B-11795. The transformer is connected to emergency generator load line EP-417 on a 208/120 volt distribution panel.
