5
LEROY-SOMER
2013.01 / k
Installation and maintenance
LSA 43.2/44.2 - 4 POLES
ALTERNATORS
3434 en -
2 - TECHNICAL CHARACTERISTICS
2.1 - Electrical characteristics
The LSA 43.2/44.2 alternator is a machine
without sliprings or revolving armature
brushes, wound as “2/3 pitch”, 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
- Stator temperature detection sensors
- Space heater
Interference suppression conforms to
standard EN 55011, group 1, class B
(Europe).
2.2 - Mechanical characteristics
- Steel frame
- Cast iron end shields
- Protected ball bearings, greased for life
- Mounting arrangements:
IM 1201 (MD 35) foot and flange mounted,
single-bearing with SAE coupling disc.
IM 1001 (B 34) double-bearing with SAE
flange and standard cylindrical shaft
extension.
- Drip-proof machine, self-cooled
- Degree of protection: IP 23
• Mechanical options
- Air inlet filter
- Regreasable ball bearings (only for
LSA 44.2 and SHUNT or AREP version)
- IP 44 protection
T1
T2
T3
T4
T5
T6
Varistor
5+
6-
T7
T8
T9
T10
T11
T12
R 250
SHUNT SYSTEM
AREP SYSTEM
PMG SYSTEM
STATOR : 12-wire (marking T1 to T 12)
EXCITER
Field
Armature
EXCITER
Field
Armature
EXCITER
Field
Armature
MAIN FIELD
Power supply / Detection
T1
T2
T3
T4
T5
T6
Va
ris
to
r
5+
6-
T7
T8
T9
T10
T11
T12
R 438
Aux. windings
STATOR :
12-wire (marking T1 to T 12)
MAIN FIELD
Voltage reference
T1
T2
T3
T4
T5
T6
Va
ris
to
r
5+
6-
T7
T8
T9
T10
T11
T12
R 438
PMG
STATOR : 12-wire (marking T1 to T12)
MAIN FIELD
Voltage reference
Summary of Contents for LSA 43.2
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