Supply; Shunt Excitation System - Leroy-Somer AVR R250 Installation And Maintenance Manual

LEROY-SOMER

1 - SUPPLY

1.1 - SHUNT excitation system

The SHUNT excitation alternator is auto-
excited with a R 250 voltage regulator.
SHUNT SYSTEM
Induced
5+
Field
Slow fuse
F1
250V 8 A
P1
Voltage
P2
Stability
ST4
Option
External potentiometrer
for voltage adjusting
4
Installation and maintenance
MAIN FIELD
6-
R250
A.V.R.
The regulator controls the excitation
current according to the alternator's output
voltage. With a very simple conception, the
SHUNT excitation alternator does not have
a short circuit capacity.
STATOR : 12 wires (marking T1 to T12)
R 250
110 0V
KNEE KNEE
50Hz 50Hz LAM LAM
47.5Hz 47.5Hz
o
OFF OFF
LAM OFF LAM OFF
9
1
13% 13%
0
SPECIAL SPECIAL
8
2
25% 25%
KNEE KNEE
3 OFF OFF
65Hz 65Hz 7
13% 13%
4
LAM OFF LAM OFF
6
KNEE KNEE
5 25% 25%
57Hz 57Hz
60Hz 60Hz
LAM LAM
LAM OFF LAM OFF
4067 en - 11.2006 / a
T1 T7 T2 T8
T5 T11
T4 T10
75 mm
4 x holes Ø 5.8 x
50 x 115 mm
Frequency selector 50 Hz
/ 60 Hz for U/F fonction
and LAM adjustement
T3 T9
T6 T12