What is the purpose of a transformer rectifier in airplane?
What is the purpose of a transformer rectifier in airplane? A Transformer Rectifier Unit (TRU) combines the functions of a Transformer and a Rectifier into one unit. In aircraft applications, the TRU converts the 120V AC power generated by the engine or APU generators or provided by a Ground Power Unit (GPU) to 28V DC power for use by various electrical components. What is aircraft rectifier? Many devices in an aircraft require high amperage, low voltage DC for operation. A rectifier is a device that transforms AC into DC by limiting or regulating the direction of current flow. The principal...