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Summary of Contents for Nidec LEROY-SOMER LSA 49.3
- Page 1 LSA 49.3 Low Voltage Alternator - 4 pole Installation and maintenance...
- Page 2 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole This manual concerns the alternator which you have just purchased. We wish to draw your attention to the contents of this maintenance manual. SAFETY MEASURES b) Do not allow children younger than 14 to go near the air outlet guards.
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Page 3: Table Of Contents
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole CONTENTS 1 - RECEIPT ......................4 1.1 - Standards and safety measures .................4 1.2 - Inspection ........................4 1.3 - Identification .......................4 1.4 - Storage ........................4 1.5 - Applications ........................4 1.6 - Usage restrictions ......................4... -
Page 4: Receipt
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 1 - RECEIPT 1.4 - Storage Prior to commissioning, machines should 1.1 - Standards and safety be stored: measures - away from humidity (< 90%); after a long alternators comply with... -
Page 5: Technical Characteristics
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 2 - TECHNICAL 2.2 - Mechanical characteristics CHARACTERISTICS - Steel frame - Cast iron end shields 2.1 - Electrical characteristics - Protected ball bearings, greased for life This alternator is a machine without - Mounting arrangement: single bearing... -
Page 6: Installation
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 3 - INSTALLATION • Single-bearing coupling Before coupling, check the compatibility Personnel undertaking various between the alternator and the engine by operations indicated in this section must performing: wear personal protective equipment... -
Page 7: Terminal Connection Diagrams
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 3.3 - Terminal connection diagrams There are 2 possible methods for restoring the above minimum values. To modify the connection, change the a) Dry out the machine for 24 hours in a position of the stator cables on the terminals. - Page 8 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • AREP or PMG three-phase 12-wire Factory connection Connection codes Voltage / Detection Winding 50 Hz 60 Hz 190 - 208 190 - 240 Parallel Star L1(U)
- Page 9 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • AREP or PMG three-phase 6-wire Connection codes Voltage / Detection Factory connection Winding 50 Hz 60 Hz L1(U) 380 - 415 380 - 480 Star W(3) L3...
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Page 10: Commissioning
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • Connection checks 3.4 - Commissioning Electrical installations must comply with the current legislation in force in the The machine can only be started up and country of use. -
Page 11: Servicing - Maintenance
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 4 - SERVICING - MAINTENANCE WARNING 4.1 - Safety measures Do not use: trichlorethylene, perchlo- Servicing or troubleshooting must be rethylene, trichloroethane or any alkaline carried out strictly in accordance with products. -
Page 12: Bearings
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 4.3 - Bearings The bearings are permanently greased Approximate life of the grease (depending on use) = 20,000 hours or 3 years. As an option, the bearings are regreasable Regreasing interval: 4500 hrs of operation DE bearing: Amount of grease: 60 gr... -
Page 13: Electrical Faults
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 4.5 - Electrical faults Fault Action Effect Check/Cause The alternator builds up and its voltage is still correct - Lack of residual magnetism when the battery is removed Connect a new battery of 4 to 12... - Page 14 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • Checking the winding Assembly A: Connect a 12 V battery in series with a rheostat of approximately You can check the winding insulation by 50 ohms - 300 W and a diode on both exciter performing a high voltage test.
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Page 15: Dismantling, Reassembly
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 4.6 - Dismantling, reassembly - Remove the «H» nuts for mounting the diode bridges on the support. - Change the crescents, respecting the WARNING polarity. - Page 16 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole - Refit the NDE bracket on the machine - Screw two threaded rods into the thrust using a dowel and nut in the shaft extension. bearing.
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Page 17: Installation & Maintenance Of The Pmg
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • Reassembling the machine • Dismantling and reassembly of the filters - Mount the rotor (4) in the stator (1) (see - Remove the grille (51) then take out the drawing above) taking care not to knock the filter (52). - Page 18 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • Three-phase: 4-pole AREP excitation • Table of weights (values given for information only) Resistances at 20 °C (Ω) Type Total weight (kg) Rotor (kg) Stator...
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Page 19: Spare Parts
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 5 - SPARE PARTS 5.1 - First maintenance parts Here is the list of parts: After operational testing, it is essential to Single bearing kit 4996460 replace all access panels or covers. -
Page 20: Exploded Views, Parts List And Tightening Torque
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole 5.4 - Exploded views, parts list and tightening torque • Single bearing... - Page 21 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole • Two-bearing...
- Page 22 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole Screw Torque Screw Torque Ref. Qty Description Ref. Qty Description Ø Ø Stator assembly Exciter field (stator) Exciter armature Rotor assembly (rotor) Diode bridge support Lifting eye...
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Page 23: Disposal And Recycling Instructions
Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole Disposal and recycling instructions These components are usually marked with information concerning the type of plastic. committed limiting All materials listed above need special environmental impact of our activity. - Page 24 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole...
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Page 25: Ec Declaration
16015 Angoulême Boite Postale 1517 France République Tchèque 45800 St Jean de Braye France LEROY-SOMER ELECTRO- NIDEC INDUSTRIAL AUTOMATION NIDEC INDUSTRIAL AUTOMATION TECHNIQUE Co., Ltd INDIA PRIVATE Ltd - BANGALORE INDIA PRIVATE Ltd - HUBLI No1 Aimosheng Road, Galshan Town,... - Page 26 Installation and maintenance Electric Power Generation 5280 en - 2022.11 / l LSA 49.3 Low Voltage Alternator - 4 pole...
- Page 27 Service & Support Our worldwide service network of over 80 facilities is at your service. This local presence is our guarantee for fast and efficient repair, support and maintenance services. Trust your alternator maintenance and support to electric power generation experts. Our field personnel are 100% qualified and fully trained to operate in all environments and on all machine types.
- Page 28 www.emersonindustrial.com www.leroy-somer.com/epg Connect with us at: 5280 en - 2022.11 / l...
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