Leroy-Somer LSA 46.1 AREP 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
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Leroy-Somer LSA 46.1 AREP Specifications

General

Brand	Leroy-Somer
Model	LSA 46.1 AREP
Category	Portable Generator
Language	English

Summary

1 - GENERALITES

1.1 - Specification

Brushless alternators, self-excited, self-regulated, with regulator and booster. Complies with intl. standards.

1.2 - Principles of operation

2 - INSTALLATION

2.1 - Location - Cooling

Requirements for ambient temp, airflow, and avoiding air recycling for proper operation.

2.2 - Electrical checks

Perform insulation checks before operation. Disconnect AVR.

2.3 - Mechanical checks

3 - STARTING UP

3.1 - Preliminary checks

Mechanical and electrical checks before first start-up. Ensure correct installation.

3.2.2 - Internal connection diagram LSA 49.1: 6 wires

3.3 - Connection of output bars

4 - MAINTENANCE

5 - POSSIBLE FAULTS

5.1 - Preliminary checks

Initial checks to perform if the alternator does not operate correctly.

5.2 - Apparent physical defects (overheating, noise, vibrations .......)

5.3 - Voltage faults

5.4 - Checking a rotating rectifier diode

5.5 - Voltage build-up by field flashing (at no load)

5.7 - Automatic Voltage Regulator R 448 LS

5.7.2 - Regulators data

5.7.3 Load acceptance module

5.7.7 - Static test AVR

5.7.8 - Static test LAM (underspeed protection)

5.8 - AVR adjustment

5.8.1 Voltage, frequency, stability adjustment

Steps for adjusting voltage, frequency, and stability settings on the AVR.

5.8.1.2 - Adjustment procedure

Detailed step-by-step procedure for setting up the regulator.

ADJUSTMENTS IN PARALLEL OPERATION

5.8.2 - Adjustment of maximum excitation current (Excitation ceiling)

6 - DISMANTLING - REASSEMBLY

6.1 - Access to diodes

6.3 - Dismantling

6.4 - REASSEMBLING ALTERNATOR

6.4.1 - End shield reassembling

6.4.2 - Rotor reassembling