2021.04 / l
Electric Power Generation
5
Installation and maintenance
TAL 047
Low Voltage Alternator - 4 pole
5378 en -
2 - TECHNICAL
CHARACTERISTICS
2.1 - Electrical characteristics
This alternator is a machine without sliprings
or revolving armature brushes, wound as
“2/3 pitch”
, 6 or 12-wire, with class H
insulation and a field excitation system
available in either
SHUNT, AREP or PMG
version (see diagrams and AVR manuals).
• Electrical options
- Space heaters
- R791 interference suppression
2.2 - Mechanical characteristics
- Steel frame
- Cast iron end shields
- Protected ball bearings, greased for life
- Mounting arrangements: single bearing
with standard feet and SAE flanges/coupling
discs
- Drip-proof machine, self-cooled
- Degree of protection: IP 23
• SHUNT three-phase 6-wire
+
-
+
-
2K/2.5K (1W)
R2
Droop
50 Hz
V
AC
S
UF
SL
UF
OE
60 Hz
50/60 Hz LINK
R1
A1
A2
Q2 Q1 F2 F1 N
FUSE
W V
ST1 ST2
T1
U1
T4
U2
T3
W1
T6
W2
T2
V1
T5
V2
R150
Consult R150 manual
ref. 5384
EXCITER
MAIN FIELD
Armature
Exciter field
V
ar
ist
or
Rotating rectifiers
option
white
blue
STATOR : 6 wires (T1 to T6 identification)
yellow
green
blue
Star connection
Delta
connection
Option: R1-R2 - External remote
voltage trimmer (remove ST1)