Crane Aerospace & Electronics Power Solutions 81-107 TRANSFORMER-RECTIFIER UNIT TECHNICAL FEATURES • 115 Vac 3 phase 400 Hz input • 28 Vdc output power • 200 A in a pressurized environment, 150 A in an unpressurized environment • >50,000 MTBF PERFORMANCE Developed to meet RTCA/DO-160C & G APPLICATIONS Aircraft DC Bus Power DESCRIPTION This field proven Transformer Rectifier Unit (TRU) can deliver 150 amps of power in an unpressurized environment or up to 200 amps in a pressurized environment. This design has been successfully operating in the field since 1997 and has an MTBF of greater than 50,000 operating hours. Already in use on business jets, this upgraded unit is finding new uses aboard many different platforms and can reliably provide you with the power that you need for your system. This TRU is one of many that Crane Aerospace & Electronics provides as the world’s leading supplier of TRUs and ATRUs for commercial aircraft. We offer field proven, exceptionally reliable power solutions for both commercial aerospace and military applications. Crane Aerospace & Electronics Power Solutions - ELDEC 16700 13th Avenue West, Lynnwood, WA 98037 +1.800.464.0261 • [email protected] www.craneae.com/power Page 1 of 2 81-107 TRU - Rev 2, 12/2/14 Crane Aerospace & Electronics Power Solutions 81-107 TRANSFORMER-RECTIFIER UNIT PERFORMANCE DATA INPUT Input Voltage: 115 Vac L-N / 200 Vac L-L, 3 Phase wye, Neutral not connected Input Frequency: 324-596 Hz Input Current (at full load): 20 Arms max @ 200 A load, 25 °C ambient, sea level Power Factor: >95% (50 to 100% load) Efficiency: 85% at 200 A load 86% at 150 A load Current THD: 13% @ 200 A output 15% @ 150 A output OUTPUT Output Voltage: 28 Vdc (nominal) Output Power: 200 A continuous, pressurized 150 A continuous, unpressurized Output Ripple: 2.4 Vp-p Overload Rating: RTCA/DO-160C, Paragraph 2.1 300 A for 1 minute 600 A for 12 seconds Temperature Variation: RTCA/DO-160C, Section 5, Category B Humidity: RTCA/DO-160C, Section 6, Category B Operation Shocks: RTCA/DO-160C, Section 7 Random Vibration: RTCA/DO-160C, Section 8, Test Curve C Waterproofness: RTCA/DO-160C, Section 10, Category W Fluids Susceptibility: Sand and Dust: RTCA/DO-160C, Section 11, Category X Fungus Resistance: RTCA/DO-160C, Section 13, Category F Salt Spray: RTCA/DO-160C, Section 14, Category S Magnetic Effects: RTCA/DO-160C, Section 15, Class B Voltage Spike: RTCA/DO-160C, Section 17, Category A Audio Frequency Conducted Susceptibility: RTCA/DO-160C, Section 18, Category Z Induced Signal Susceptibility: RTCA/DO-160C, Section 19, Category Z Radio Frequency Susceptibility Conducted: Radiated: RTCA/DO-160G, Section 20.4, Catergory W (power lines), Category R (signal lines) Emission of Radio Frequency Energy: RTCA/DO-160C, Section 21, Category Z Reduced Load, 150 A RTCA/DO-160C, Section 4 -40 to + 70°C at sea level 25°C at 25,000 ft Lightning Indirect Effects: RTCA/DO-160G, Section 22, Category AC3CL3 MTBF: >50,000 flight hours RTCA/DO-160C, Section 4 -55 °C to +85 °C Design Life: >20 years INTERFACE Dimensions: (not including external hardware) Length: 13.0 inches (330.2 mm) Width: 6.99 inches (177.6 mm) Height: 5.0 inches (127.0 mm) Weight: 15.6 lbs (7.1 Kg) Cooling (fan failure signal provided): Internal Fan Connections: Input: Output: D38999/20FE6PN MS25044-1 ENVIRONMENTAL Temperature and Altitude: Nominal Load, 200 A RTCA/DO-160C, Section 4 -40 to + 70°C at sea level 25°C at 20,000 ft Ground Survival: RTCA/DO-160C, Section 12, Category X RTCA/DO-160G, Section 20.5, Category Y All technical information is believed to be accurate, but no responsibility is assumed for errors. Crane reserves the right to make changes in products or specifications without notice. Copyright © 2014 Crane Electronics, Inc. All rights reserved. Page 2 of 2