Leroy-Somer LSA 46.2 Installation And Maintenance Manual
Alternators
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Summary of Contents for Leroy-Somer LSA 46.2
- Page 1 Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS Installation and maintenance...
- Page 2 Warning symbol for general danger to personnel. Warning symbol for electrical danger to personnel. Copyright 2000 : MOTEURS LEROY-SOMER Note : LEROY-SOMER reserves the right to modify the This document is the property of : characteristics of its products at any time in order to MOTEURS LEROY-SOMER incorporate the latest technological developments.
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Page 3: Table Of Contents
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS CONTENTS 1 - RECEIPT ............4 4 - SERVICING - MAINTENANCE ......14 Standards and safety measures Safety measures Inspection Regular maintenance... -
Page 4: Receipt
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS RECEIPT 1 - RECEIPT 1.3 - Identification The alternator is identified by means of a nameplate fixed on the frame (see drawing). -
Page 5: Technical Characteristics
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). -
Page 6: Options
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS TECHNICAL CHARACTERISTICS 2.3 - Excitation system adjustable via potentiometer P4 - max. excitation current adjustment via P5 : 4 to 10A For both the AREP &... -
Page 7: Frequency Compared With Voltage
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS TECHNICAL CHARACTERISTICS PMG excitation R448 Voltage Transient voltage drop (U/f) 2.3.3 - Frequency compared with voltage (without LAM) Frequency Max. speed drop... -
Page 8: Installation
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS INSTALLATION 3 - INSTALLATION 3.1.3 - Location Ensure that the ambient temperature in the room where the 3.1 - Assembly alternator is placed cannot exceed 40°C for standard power ratings (for temperatures >... -
Page 9: Terminal Connection Diagrams
To modify the connections, change the position of the terminal links or shunts. The winding code is specified on the nameplate. Any intervention on the alternator terminals during 3.3.1 - Terminal connection : LSA 46.2/47.1 - reconnection or checks should be performed with 12-wire the machine stopped. -
Page 10: Option Connection Diagram
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS INSTALLATION 3.3.2 - Terminal connection : 6 wire Connection codes Voltage L.L Factory connection 50 Hz 60 Hz L1(U) Winding 380 - 480... -
Page 11: Connection Checks
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS INSTALLATION 3.4 - Commissioning 3.3.4 - Connection checks Electrical installations must comply with the current legislation in the country of use. -
Page 12: R 448 Settings
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS INSTALLATION 3.5.1 - R 448 settings h) Set the output voltage to the desired value using P2. - Rated voltage UN for solo operation (eg. -
Page 13: Max. Excitation Setting
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS INSTALLATION 3.5.2 - Max. excitation setting (excitation 3.5.3 - Special type of use ceiling) - Field weakening Max. excitation depending on the mains frequency... -
Page 14: Servicing - Maintenance
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE 4 - SERVICING - MAINTENANCE The factory lubrication is performed with grease : SHELL - ALVANIA G3. 4.1 - Safety measures Before using another grease, check for compatibility with the original one. -
Page 15: Fault Detection
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE 4.3 - Fault detection If, when commissioned, the alternator does not work normally, the source of the malfunction must be identified. -
Page 16: Checking The Winding
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE Fault Action Effect Check/Cause Check the AVR connections (possible AVR failure) Correct speed - Field windings short-circuited Voltage too... -
Page 17: Checking The Windings And Rotating Diodes
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE 4.6 - Dismantling, reassembly 4.5.3 - Checking the windings and rotating (see sections 5.4.1. & 5.4.2.) diodes using separate excitation... -
Page 18: Access To Diodes
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE 4.6.3 - Access to diodes screw. - Fit the new bearing, after heating it by induction to - Open the air inlet louvre (51) approximately 80°C. -
Page 19: Installation And Maintenance Of The Pmg
SERVICING - MAINTENANCE 4.7 - Installation and maintenance of the PMG NDE shield In LSA 46.2 / 47.1, the PMG reference is : PMG 2. Threaded rod 4.7.1 - Mechanical characteristics The components are : - an adaptation shaft (to position the rotor on the alternator shaft). -
Page 20: Table Of Characteristics
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SERVICING - MAINTENANCE 4.8 - Table of characteristics 4.8.2 - Average values for LSA 47.1 Resistances at 20°C (Ω) Table of average values Alternator - 4 poles - 50 Hz - Standard winding No. -
Page 21: Spare Parts
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SPARE PARTS 5 - SPARE PARTS 5.3 - Accessories 5.3.1 - Space heater for use when stopped 5.1 - First maintenance parts The space heater must start up as soon as the alternator Emergency repair kits are available as an option. -
Page 22: Exploded Views, Parts List
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SPARE PARTS 5.4 - Exploded view, parts list 5.4.1 - Single bearing Ref. Description Ref. Description Stator assembly Terminal block with terminals... -
Page 23: Two-Bearing
LEROY-SOMER INSTALLATION AND MAINTENANCE Ref. 2981 GB - 4.33/b - 07.02 LSA 46.2 / 47.1 - 4 POLE ALTERNATORS SPARE PARTS 5.4.2 - Two-bearing Ref. Description Ref. Description Stator assembly Exciter armature Rotor assembly Crescent support Turbine Terminal support Balancing disc... - Page 24 MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE Imprimerie MOTEURS LEROY-SOMER R C A N G O U L E M E B 6 7 1 8 2 0 2 2 3...