Installation Guide

2022.02 / l
6
Electric Power Generation
Installation and maintenance
R120
AVR
5243 en -
4 - MAIN FUNCTION OF THE AVR
The AVR is powered by the line-to-neutral terminals of the AC generator with 240 VAC at
50/60Hz. The regulated sensing voltage is based on the AVR input power.
T1
U1
T4
U2
T3
W1
T6
W2
T2
V1
T5
V2
SL
OE
V S UF OPEN IN 60Hz OE UF SL
V N1 U N F1 F2
S
U/F
50 Hz
60 Hz
*
V
UF
MAIN FIELD
Armature
Exciter field
Varistor
STATOR: 6 wires (T1 to T6 identification)
* Note: for delta configuration (1PH – 3PH), use terminals N and U, short N and N1.
Sensing loss
Over-excitation
Voltage
Stability
Fuse 4 A
240 V
Under
frequency
Frequency
* not connected in delta configuration
yellow
green
blue
Star configuration
Delta configuration
black
red