Transformer Rectifier Unit (TRU)

Transformer Rectifier Unit (TRU)

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Last modified:
25.Jun.2022
Article UID:
1667

TRU

Description

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.

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Cite This Page SKYbrary Aviation Safety. (June 25, 2022). Transformer Rectifier Unit (TRU). Retrieved February 2, 2026 from https://skybrary.aero/articles/transformer-rectifier-unit-tru UID: 1667
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