Leroy-Somer LSA49.1 User Manual

Réf. 2592 - 4.33 /a - 05.97
ALTERNATEURS - ALTERNATORS
LSA; LSA M; LSA C; LSA K; LSA T 49.1LSA; LSA M; LSA C; LSA K; LSA T 49.1
A R E P - 6 P A R E P - 6 Pôles - R 44les - R 448
Installation et/and maintenanceInstallation et/and maintenance
N°
Am
b
A
m
b
tr
/
m
n
r.p
.m
té
t
y
I
P
%
V
h
g
ALTERNATEURS
ALTERNATORS
C
e
tte
n
o
tic
e
d
o
it ê
tre
tra
n
s
m
is
e
à
l'u
tilis
a
te
u
r fin
a
l

Leroy-Somer LSA49.1 Specifications

General

Brand	Leroy-Somer
Model	LSA49.1
Category	Portable Generator
Language	English

Summary

1 - GENERAL

1.1 - Specification

Product specifications, standards compliance, mechanical and electrical features.

1.2 - Principles of operation

Explains how the voltage regulator and exciter system work together.

2 - INSTALLATION

2.1 - Location - Cooling

2.2 - Electrical checks

Details electrical checks to perform before operation.

2.3 - Mechanical checks

Outlines mechanical checks before starting up the alternator.

3 - STARTING UP

3.1 - Preliminary checks

Lists preliminary mechanical and electrical checks before starting.

3.1.1- Mechanical checks

3.1.2 - Electrical checks

3.2 - Internal connection diagramm

Provides standard internal connection diagrams for the alternator.

4 - MAINTENANCE

5 - FAULTS AND TROUBLE SHOOTING

5.1 - Preliminary checks

Lists initial checks to perform if the alternator malfunctions.

5.2 - Apparent physical defects

Describes apparent physical defects and their likely causes.

5.3 - Voltage faults

Details voltage-related faults, their causes, and checks.

5.7 - Automatic Voltage Regulator R 448 LS

5.7.2 - Regulators data

Lists the technical characteristics of the R 448 LS regulator.

5.7.3 - Load acceptance module

Explains the Load Acceptance Module (LAM) function and its effects.

5.7.7 - Static test AVR

Describes how to perform static tests on the AVR to check its functionality.

5.7.8 - Static test LAM (underspeed protection)

5.8 - AVR adjustment

5.8.1 Voltage, frequency, stability adjustment

5.8.1.2 - Adjustment procedure

ADJUSTMENTS IN PARALLEL OPERATION

5.8.2 - Adjustment of maximum excitation current (Excitation ceiling)

6 - DISMANTLING - REASSEMBLY

6.3 - Dismantling

6.3.1 - N.D.E. ball bearing replacing on single bearing alternator

6.3.2 - D.E. ball bearing replacing on two bearing alternator

6.3.3 - Complete dismantling

6.4 - REASSEMBLING ALTERNATOR

Procedures for reassembling the alternator components.

6.4.1 - End shield reassembling

6.4.2 - Rotor reassembling