Technical Characteristics; Electrical Characteristics; Mechanical Characteristics - Leroy Somer LSA 49.1 4P Manuel D'utilisation Et D'entretien

LEROY-SOMER
2 - TECHNICAL
CHARACTERISTICS

2.1 - Electrical characteristics

PARTNER LSA 49.1 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).
Exciter
Armature
AREP
system
with R 448
Field
5+
Exciter
Armature
PMG
system
Field
5+
with R 448
Interference suppression conforms with standard EN 55011,
group 1, class B.
2.1.1 - Options
- Stator temperature sensors
- Space heaters
- 6-wire terminal box with connector links for mounting
protection and (or) measurement C.T.

2.2 - Mechanical characteristics

- Steel frame
- End shields in cast iron
- Greasable ball bearings
- Mounting arrangement
MD 35 :
Single bearing with standard feet and SAE flanges/coupling
discs.
INSTALLATION AND MAINTENANCE
LSA 49.1 4P
ALTERNATORS

TECHNICAL CHARACTERISTICS

MAIN FIELD
6-
MAIN FIELD
6-
STATOR : 6 or 12 wires (marked T1 to T 12)
Aux. windings
T1
T4
R 448
STATOR : 6 or 12 wires (marked T1 to T 12)
T1
PMG
T4
R 448
B 34 :
Two-bearing with SAE flange and standard cylindrical shaft
extension.
- Drip-proof machine, self-cooled
- Degree of protection : IP 22
2.2.1 - Options
- Protection against harsh environments
- Air inlet filter, air outlet labyrinth seals.
Alternators fitted with air inlet filters should be derated by 5%
(power).
To prevent excessive temperature rise caused by clogged
filters, it is advisable to fit the stator winding with thermal
sensors (PTC or PT100).
- PMG
Ref. 3007 GB - 4.33/a - 10.00
T2 T8 T3 T9
T7
T5 T11
T6 T12
T10
Voltage reference
T2 T8 T3 T9
T7
T5 T11 T6 T12
T10
Voltage reference
5