Unused and never installed transformer / rectifier manufactured by Neeltran of USA in 2015. Include 21000 ADC x 290 VDC 12 pulses power supply system and other associated equipment, materials, drawings and manuals. Spare parts include 1 set of gaskets for transformer and 1 set of protection relays for rectifier, 5 SCRs (Thyristor), 5 SCR fuses, 2 control amplifier BD, 5 gate driver board, 1 lamp bulb (box of 10), 2 control relay, 1 control fuse (kit), and 1 PC board. Unit designed for a 52.8 TPD caustic soda plant #431 (http://phxequip.com/plant.2294/caustic-soda-plant-18-000-tpy.aspx).