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Summary of Contents for Nidec LEROY-SOMER LSA 44.3
- Page 1 LSA 44.3 Low Voltage Alternator - 4 pole Installation and maintenance...
- Page 2 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 a) During operation, do not allow anyone to stand in front of the air outlet guards,...
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Page 3: Table Of Contents
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 ........................ -
Page 4: Receipt
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 5056 en - 2021.09 / k LSA 44.3 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 and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • SHUNT three-phase 12-wire STATOR: 12-wire (marking T1 to T12) MAIN FIELD EXCITER Armature Field R250 Power supply / Detection •...
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Page 7: Installation
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 8: Checks Prior To First Use
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole 3.3 - Terminal connection diagrams 3.2 - Checks prior to first use To modify the connection, change the • Electrical checks position of the stator cables on the terminals. - Page 9 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • SHUNT, AREP or PMG three-phase 12-wire Connection codes Voltage / Detection Factory connection 50 Hz 60 Hz Winding L1(U) 190 - 208 190 - 240 220 - 230...
- Page 10 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • SHUNT, AREP or PMG three-phase 12-wire Connection codes Voltage / Detection Factory connection 50 Hz 60 Hz Winding 220 - 240 220 - 240 250 - 260 220 - 240...
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Page 11: Commissioning
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 12: Servicing - Maintenance
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 13: Bearings
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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. 4.4 - Mechanical defects Fault Action... -
Page 14: Electrical Faults
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 15 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 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 16: Dismantling, Reassembly
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole 4.6 - Dismantling, reassembly - Check all modules using an ohmmeter or a battery lamp. WARNING - Refit the modules. - Refit the air intake grille (51). -
Page 17: Installation & Maintenance Of The Pmg
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • Accessing the main field and stator Dismantling NDE shield Follow the procedure for dismantling the Rotor bearings. Threaded rod - Remove the coupling disc (single bearing alternator) or the DE shield (two-bearing alternator) and insert a tube of the... -
Page 18: Table Of Characteristics
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole 4.8 - Table of characteristics • Three-phase: 4-pole, AREP excitation Table of average values: Resistances at 20 °C (Ω) Alternator - 4 pole - 50 Hz - Standard winding Stator Exciter Exciter... - Page 19 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • Dedicated single-phase M: 4-pole, • Table of weights (values given for information only) SHUNT excitation - 50 Hz Resistances at 20 °C (Ω) Type Total weight (kg) Rotor (kg)
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Page 20: Spare Parts
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole 5 - SPARE PARTS In the event of failure to comply with this advice, the manufacturer cannot be held 5.1 - First maintenance parts responsible for any damage. -
Page 21: Exploded Views, Parts List And Tightening Torque
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole 5.4 - Exploded views, parts list and tightening torque • Single bearing... - Page 22 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole • Two-bearing...
- Page 23 Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole Screw Torque Screw Torque Ref. Qty Description Ref. Qty Description Ø Ø Stator assembly Circlips Rotor assembly Inner bearing retainer Non drive end (NDE) bearing Lifting eye (only...
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Page 24: Disposal And Recycling Instructions
Installation and maintenance Electric Power Generation 5056 en - 2021.09 / k LSA 44.3 Low Voltage Alternator - 4 pole Disposal and recycling instructions All materials listed above need special treatment separate waste from committed limiting reclaimable materials and should be environmental impact of our activity. -
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 5056 en - 2021.09 / k LSA 44.3 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 Linkedin.com/company/leroy-somer Twitter.com/Leroy_Somer_en Facebook.com/LeroySomer.Nidec.en YouTube.com/LeroySomerOfficiel 5056 en - 2021.09 / k...
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