A Transformer Rectifier Unit, or TRU, is an essential component in aircraft systems. It merges the roles of both a Transformer and a Rectifier into a single device. In aviation, the TRU plays a crucial role by converting 120V AC power from engines, APU generators, or Ground Power Units into 28V DC power. This conversion is vital for powering various electrical systems on the aircraft. By streamlining these processes, TRUs enhance the efficiency and reliability of aircraft operations.









