5
INSTALLATION AND MAINTENANCE
LSA 46.2 / 47.1 - 4 POLE
ALTERNATORS
TECHNICAL CHARACTERISTICS
Ref. 2981 GB - 4.33/b - 07.02
LEROY-SOMER
2 - TECHNICAL
CHARACTERISTICS
2.1 - Electrical characteristics
LSA 46.2/47.1 alternators are machines without sliprings or
revolving field brushes, wound as « 2/3 pitch»; 6 or 12-wire,
with class H insulation and a field excitation system available
in either AREP or "PMG" version (see diagrams).
AREP system
with R 448
PMG system
with R 448
Interference suppression conforms to standard EN 55011,
group 1, class B.
2.1.1 - Options
- Stator temperature detection probes
- Space heaters
2.2 - Mechanical characteristics
- Steel frame
- Cast iron end shields
- Ball bearings greased for life
- Mounting arrangement
IM 1201 (MD 35) single bearing with standard feet and SAE
flanges/coupling discs.
IM 1001 (B 34) two-bearing with SAE flange and standard
cylindrical shaft extension.
- Drip-proof machine, self-cooled
- Degree of protection : IP 23
2.2.1 - Options
- Air inlet filter,
- Greasable ball bearings,
- IP 44,
- Bearing probes (PTC, PT100),
- Stators probes (PTC, PT 100).
T1
T2
T3
T4
T5
T6
Surge suppressor
5+
6-
T7
T8
T9
T10
T11
T12
R 448
Aux. windings
STATOR : 6 or 12-wire (marking T1 to T 12)
Exciter
Field
Armature
MAIN FIELD
Voltage reference
T1
T2
T3
T4
T5
T6
Surge supressor
5+
6-
T7
T8
T9
T10
T11
T12
R 448
PMG
STATOR : 6 or 12wire (marking T1 to T 12)
Exciter
Field
Armature
MAIN FIELD
Voltage reference
