MRC - 81-083-01_March_2015 - Crane Aerospace & Electronics

Crane Aerospace & Electronics Power Solutions
81-083 TRANSFORMER RECTIFIER UNIT
TECHNICAL FEATURES
• 115 VAC, 3 phase, 400 Hz input
• 28 Vdc output power
• 250 Amps
• 24 pulse rectification
• Fan cooled
• Unregulated
• Very low current THD
PERFORMANCE
Developed to meet RTCA/DO-160
Application
• Aircraft DC Bus power
DESCRIPTION
SIDE VIEW
13.00 inches (330 mm) MAX
12.30 inches (312 mm) MAX
AIR OUTLET
AREA
6.00 inches
(152 mm)
This field proven Transformer Rectifier Unit (TRU) can
provide up to 250 amps of power in a pressurized commercial
aerospace environment.
This proven design has been successfully operating in the field
since 2000 and has an MTBF of 50,000 hours. Already in use
on business aircraft, this unit can be used on a variety of other
platforms.
This TRU is one of many that Crane aerospace & Electronics
provides as the world’s leading supplier of TRUs and Auto
Transformer/Rectifier Units for commercial aircraft. We offer
field proven, exceptionally reliable power solutions for both
commercial aerospace and military applications.
TOP VIEW
FRONT VIEW
9.50 inches
(241 mm)
MAX
8.50 inches
(216 mm)
7.75 inches
(197 mm)
MAX
AIR INLET AREA
AND AIR FILTER
9.00
(229)
Crane Aerospace & Electronics
Power Solutions - ELDEC
16700 13th Avenue West, Lynnwood, WA 98037
+1.800.464.0261 • [email protected]
www.craneae.com/power
4X 0.281
(7)
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81-083 TRU - Rev 2, 12/2/14
4.55 ± 0.10
(115.6 ± 2.5)
Crane Aerospace & Electronics Power Solutions
81-083 TRANSFORMER RECTIFIER UNIT
PERFORMANCE DATA
INPUT
Input Voltage:
115 VAC, 3 phase per RTCA/
DO-160C, Section 16, Cat A.
Input Frequency:
400 Hz
Input Current:
<24 Amps
Power Factor:
>0.95% at 250 A load
Efficiency:
>85% at 250 A load
Current THD:
<5% at 250 A output
OUTPUT
Output Voltage:
28 Vdc
Output Current:
250 Amps
Output Ripple:
<1.5 Vp-p at 250 A load
Overload Rating:
150% (375 amps) for 2 minutes
200% (500 amps) for 5 seconds
280% (700 amps) for 1 second
Operational Shock
and Crash Safety:
RTCA/DO-160D, Section 7,
Category A
Explosion Proofness:
RTCA/DO-160C, Section 9,
Category E2
Waterproofness:
RTCA/DO-160C, Section 10,
Category W
Fluids Susceptibility:
RTCA/DO-160C, Section 11,
(except hydraulic fluids)
Fungus Resistance:
RTCA/DO-160C, Section 13,
Category F
Magnetic Effects:
RTCA/DO-160C, Section 13,
Category B
Voltage Spike:
RTCA/DO-160C, Section 17,
Category A
Audio Frequency Conducted
Susceptiblity - Power Inputs:
RTCA/DO-160C, Section 18,
Category A
INTERFACE
Dimensions (not including external hardware):
Length:
13.00 inches (330.2 mm)
Width:
9.5 inches (241.3 mm)
Height:
6.0 inches (152.4 mm)
Induced Signal Susceptibility:
RTCA/DO-160C, Section 19,
Category Z
Radio Frequency Susceptibility (HIRF):
RTCA/DO-160C, Section 20,
Category U
Weight:
≤ 25 lbs (<11.3 kg)
Cooling:
Internal Fan
Emission of Radio Frequency:
RTCA/DO-160C, Section 21,
Category Z
Conducted Susceptibility:
RTCA/DO-160C, Section 20
Category U
Radiated Susceptibility:
20 V/M, 30 to 400 MHz
(AM-1KHZ square wave)
28 V/M, 400 MHz to 8 GHz
(AM-1KHz square wave)
150 V/M, 400 MHz to 8 GHz
PM - 1mS, 1 KHz
Connections:
Input:
Signal:
Output:
Terminal Block:
Positive:
Negative
MS3470L14-4P
MS3470L10-6P
MS25044-1
3/8-24 UNF 2A Stud
5/16-24 UNF 2A Stud
ENVIRONMENTAL
Temperature and Altitude:
RTCA/DO-160C, Section 4,
Category A2. +15,000 feet
Ground Survival
RTCA/DO-160C, Section 4
- 55 °C to +85 °C
Temperature Variation:
RTCA/DO-160C, Section 5,
Category B
Humidity:
RTCA/DO-160C, Section 6,
Category B
Lightning Indirect Effects:
RTCA/DO-160C, Section 22,
Change Notice 2
Pin level test as shown
AC Lines:
WF 3, 1500 Voc/500 Asc
WF 4, 880 Voc/150 Asc
DC Lines:
WF 3, 1500 Voc/50 Asc
WF 4, 300 Voc/60 Asc
Design Life:
> 20 years
All information is believed to be accurate, but no responsibility is assumed for errors. We reserve the right to make changes in products or
specifications without notice. Copyright © 2014 Crane Electronics, Inc. All rights reserved.
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