Transformer Rectifier Units (TRU)

As the world’s leading supplier of Transformer Rectifier Units (TRUs) for commercial aircraft since the 1960s, Crane Aerospace & Electronics can provide you with field-proven, exceptionally reliable solutions. We have thousands of ELDEC TRUs in the field for a wide variety of aircraft programs. The units operate from 3-phase power sources and are sized from 10 to 400 amps. Our units are either regulated or unregulated units, and have efficiencies as high as 88%. They meet the increasingly stringent power quality requirements of major OEMs.

Features

• Unregulated configurations for simplicity and reliability

• Regulated configurations with tight voltage control

• Output voltage: 28 V dc nominal

• Output current: 10 – 400 A

• Input/output isolation – separate primary and secondary windings

• 12-pulse or 24-pulse rectification

• Options for free, forced or fan cooling

• Long-life field-proven fan

• Clean output power ensuring compatibility with avionics loads

• Availability of thermal sensor trip and fan fail signal

• Clean input power with low harmonic distortion

Let us help you determine the best TRU for your application. Use the Ask the Expert button on the left.

Typical Applications

• Aircraft DC Bus Power

• Commercial aircraft

• Commercial helicopters

• Regional and business jets

• Military aircraft