OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Appendix A
Page 1
Appendix A Active Rectifier Unit (ARU)
All ITW GSE 4400 units can be equipped with a 28 VDC
A
ctive
R
ectifier
U
nit (ARU) output.
Both 400 Hz & 28 VDC outputs can be used simultaneously. The total continuous amount of power from the
unit is calculated as the sum of 400 Hz and 28 VDC output and cannot exceed the total 400 Hz power rating
of the unit.
A.1 General
Description
A-1-1 Principle of 28 VDC ARU
*
*
ARU
Board
(A20)
A
B
C
+
-
400
Hz
Output
Contactor
(Q3)
ARU
Transformers
X6
C20
R20
400
H
z
Input
28
VDC
Output
Rectifier
Module
M20
Power
Supply
(G20)
G20
X2
X1
X6
X5
°t
DISCHARGE
RESISTOR
FAN
FILTER
CAPACITOR
T20
ARU Module
*
Situated in the 400 Hz cubicle
Содержание 4400
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