SDMO R33C3 User Manual

4
LEROY-SOMER
2010.11 / f
Installation and maintenance
R438
A.V.R.
1 - SUPPLY
1.1 - AREP excitation system
For both AREP & PMG excitation systems,
the alternator voltage regulator is the R438.
With AREP excitation, the R438 electronic
AVR is powered by two auxiliary windings
which are independent of the voltage match
circuit.
The rst winding has a voltage in proportion
to that of the alternator (characteristic
Shunt), the second has a voltage in propor-
tion to the stator current (compound charac-
teristic: Booster effect).
The power supply voltage is rectied and
ltered before being used by the AVR moni-
toring transistor. This principle ensures that
regulation is not affected by distortions ge-
nerated by the load.
4 x holes Ø 5.8 x
175 x 115 mm
200 mm
140 mm
X2
X1
Z2
E+
E-
0V
110
220
380
Z1
T1
T2 T3
T4
T5
T6
Varistor
5+
6-
T7
T8 T9
T10
T11
T12
R 438
F1
ST5
P5
ST11
ST2
ST1
P3
P2
P1
ST4
ST9
Option
AREP
PMG PMG
T.I.
Option
S1
P1
Ph.1
P2
S2
R731
Option
AREP SYSTEM
Field
Armature
10 Yellow
11 Red
9 Green
12 Black
MAIN FIELD
Aux. windings
Slow fuse
250V 8 A
with LAM
without LAM
Excitation
ceiling
knee-point: 65 Hz
open
Response
time
normal
fast
Stability
Voltage
Single-
phase
detection
External potentiometer
for adjusting the voltage
Quad
droop
according voltage
STATOR : 6 wires (marked T1 to T6)
STATOR : 12 wires (marked T1 to T12)
in 3-ph. detection ST1 open
3-ph. detection
ST3
50Hz
60Hz
ST10
13 %
LAM
25 %
Frequency
3971 en -
230/242

SDMO R33C3 Specifications

General

Brand	SDMO
Model	R33C3
Category	Portable Generator
Language	English