Nidec Leroy-Somer LSA 50.2 Installation And Maintenance Manual
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Nidec Leroy-Somer LSA 50.2 Installation And Maintenance Manual

Nidec Leroy-Somer LSA 50.2 Installation And Maintenance Manual

Low voltage alternator - 4 pole
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LSA 50.2
Low Voltage Alternator - 4 pole
Installation and maintenance

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Summary of Contents for Nidec Leroy-Somer LSA 50.2

  • Page 1 LSA 50.2 Low Voltage Alternator - 4 pole Installation and maintenance...
  • Page 2 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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,...

  • Page 3: Table Of Contents

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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 4099 en - 2019.02 / j LSA 50.2 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 (<...

  • Page 5: Technical Characteristics

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole 2 - TECHNICAL CHARACTERISTICS 2.2 - Mechanical characteristics - Steel frame 2.1 - Electrical characteristics - Cast iron end shields This alternator is a machine without Protected ball bearings, permanently sliprings or revolving field brushes, wound...

  • Page 6: Installation

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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 4099 en - 2019.02 / j LSA 50.2 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 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole • AREP or PMG three-phase 6-wire Connection code L.L voltage Factory connection 50 Hz 60 Hz L1(U) Winding 380 - 415 380 - 480 L3(W) 3-phase...
  • Page 9 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole • Option connection diagram External voltage potentiometer R791 T interference suppression kit (standard for CE marking) Connections Black 1000 ohms Black Black Voltage adjustment via remote...

  • Page 10: Commissioning

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole 3.4 - Commissioning • Connection checks 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 4099 en - 2019.02 / j LSA 50.2 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 4099 en - 2019.02 / j LSA 50.2 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: 3600 hrs of operation DE bearing: Amount of grease: 60 gr...

  • Page 13: Electrical Faults

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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 The alternator builds up but...
  • Page 14 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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.

  • Page 15: Dismantling, Reassembly

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole 4.6 - Dismantling, reassembly • Access to connections and the regulation system During warranty period, this Access directly by removing the box lid (48) operation should only be carried out in or the AVR access door (466).
  • Page 16 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole - Slide the threaded rod into the shield hole - Tighten the bottom inner bearing cap to make it easier to assemble (see diagram). screws (78), remove the threaded rod and fit the other screws.

  • Page 17: Installation & Maintenance Of The Pmg

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole • Reassembling the machine - Mount the rotor (4) in the stator (1) (see drawing above) taking care not to knock the windings. - Slide the threaded rod into the shield hole to make it easier to assemble (see diagram).
  • Page 18 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole • Average values • Table of weights (values given for information only) Resistances at 20°C (Ω) Type Total weight (kg) Rotor (kg) Exciter Rotor...

  • Page 19: Spare Parts

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole 5 - SPARE PARTS 5.1 - First maintenance parts Emergency repair kits are available as an After operational testing, it is essential to option.

  • Page 20: Exploded Views, Parts List And Tightening Torque

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole 5.4 - Exploded view, parts list and tightening torque • Single-bearing...
  • Page 21 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole • Double-bearing...
  • Page 22 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole Screw Torque Screw Torque Ref. Qty Description Ref. Qty Description Ø Ø 1 Preloading wavy Stator assembly washer Rotor assembly Exciter field Exciter armature Lifting ring...

  • Page 23: Disposal And Recycling Instructions

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole Disposal and recycling instructions The oil and grease from the lubrication system should be treated as hazardous committed limiting waste and must be treated in accordance environmental impact of our activity.
  • Page 24 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole...

  • Page 25: Declaration Of Ec Compliance And Incorporation

    Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 Low Voltage Alternator - 4 pole Declaration of EC compliance and incorporation This Declaration applies to the generators designed to be incorporated into machines complying with the Machinery Directive Nr 2006/42/EC dated 17 May 2006.
  • Page 26 Installation and maintenance Electric Power Generation 4099 en - 2019.02 / j LSA 50.2 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 4099 en - 2019.02 / j...

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