LEROY-SGMER
Installation and maintenance
4291 e n -10.2008/a
R220
A.V.R.
1 - SUPPLY
1.1 - SHUNT excitation system
The alternator with Shunt excitation is self-
excited with an R 220 voltage regulator.
The regulator monitors the exciter excitation
current as a function of the alternator output
voltage. Very simple in design, the alternator
with shunt excitation has no sustaining
short-circuit capacity.
2-R220A.V.R.
2.1 - Characteristics
- Voltage regulation: ±0.5%.
- Voltage supply/sensing range 85 to 139 V
(50/60 Hz)
- Rapid response time (500 ms) for a
transient voltage variation amplitude of
±
20
%
- Voltage setting P1
- Stability setting P2.
- Power supply protected by 8 Atuse, slow-
blow action (tolerates 10 A for 10 s)
The fuse is impregnated in the resin,
therefore it can not be replaced.
- Frequency: 50 Hz with ST3 jumper - 60 Hz
without ST3 jumper.
2.2-R220AVR option
Potentiometer
for
remóte
voltage
adjustment, 1000 £2/ 0.5 W min: adjustment
range ± 5%.
- Remove the ST4 jumper.
STATOR : 12 wires (marked T1 to T12)
T1 ÍT7
jT2rfT 8
ÍT3 |T9
T11
T6 T12
P1 ^Voltage^
ST4
Option
Potentiometer for remóte
voltage adjustment
P2 ^tability^
ST3
Frequency
B5 0 H
z
^ 6 0 H z
