Leroy-Somer LSA 47.2 Installation And Maintenance Manual
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Leroy-Somer LSA 47.2 Installation And Maintenance Manual

Alternators 4 poles
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LSA 47.2 - 4 POLES
ALTERNATORS
Installation and maintenance
366
49
131
128
41
124
198
367
31
60
284
22
62
3742 en -
4
34
33
15
68
30
2011.03 / g
347
343
28
1

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Summary of Contents for Leroy-Somer LSA 47.2

  • Page 1 3742 en - 2011.03 / g LSA 47.2 - 4 POLES ALTERNATORS Installation and maintenance...
  • Page 2 LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 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...

  • Page 3: Table Of Contents

    Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 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 ........................

  • Page 4: Receipt

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 1 - RECEIPT • C : excitation system (C : AREP / J : SHUNT or PMG) 1.1 - Standards and safety • 6/4 : winding number / number of poles.

  • Page 5: Technical Characteristics

    2.2 - Mechanical characteristics - Steel frame 1.1 - Electrical characteristics - Cast iron end shields The LSA 47.2 alternator is a machine - Protected ball bearings, greased for life without sliprings or revolving armature - Mounting arrangements: brushes, wound as “2/3 pitch”, 6 or 12-...

  • Page 6: Installation

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 3 - INSTALLATION 3.1.2 - Coupling Personnel undertaking various 3.1.2.1 - Single-bearing alternator operations indicated in this section must Before coupling the machines, check that...

  • Page 7: Checks Prior To First Use

    Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 3.3.1 - Terminal connection: 12 wire There are 2 possible methods for restoring the above minimum values. The connection accessories are detailed in a) Dry out the machine for 24 hours in a section 5.3.3.
  • Page 8 LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS Connection codes Voltage L.L Factory connection 50 Hz 60 Hz L1(U) Winding 190 - 208 190 - 240 3-phase L3(W) L2(V) 190 - 208 L1(U) R 250 voltage sensing: 0 =>...
  • Page 9 Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 3.3.2 - Terminal connection: 6 wire (not possible with the R 250) Connection codes Voltage L.L Factory connection 50 Hz 60 Hz L1(U) Winding 380 - 415...

  • Page 10: Commissioning

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 3.4 - Commissioning 3.3.4 - Connection checks Electrical installations must comply with The machine can only be started up and the current legislation in force in the used if the installation is in accordance country of use.

  • Page 11: Servicing - Maintenance

    Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 4 - SERVICING - MAINTENANCE 4.2.3 - Electrical servicing 4.1 - Safety measures Commercially-available volatile degreasing Servicing or troubleshooting must be agents can be used.

  • Page 12: Mechanical Defects

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 4.4 - Mechanical defects Fault Action Excessive temperature rise in one or - If the bearing has turned blue or if the grease has turned black, change the bearing...
  • Page 13 Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 4.5.1 - 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 14: Dismantling, Reassembly

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 4.6 - Dismantling, reassembly 4.6.4 - Access to connections and the (see sections 5.4.1. & 5.4.2.) regulation system Access directly by removing the top of the WARNING cover (48) or the AVR access door (466).
  • Page 15 Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS - Slide the threaded rod into the shield hole - Slide the threaded rod into the shield hole to make it easier to assemble (see basic to make it easier to assemble (see basic diagram).

  • Page 16: Installation And Maintenance Of The Pmg

    (79) + the new “O” ring seal (349) in the shield (36). the PMG - Refit the shield (36) on the machine using For the LSA 47.2, the PMG reference is: a dowel and nut in the shaft extension (see PMG 3. diagram).

  • Page 17: Table Of Characteristics

    0.88 10.2 0.128 no load 0.0063 0.88 10.2 0.128 0.0045 0.98 10.2 0.128 LSA 47.2 Auxil wdg: X1, X2 Auxil wdg: Z1, Z2 0.0047 1.03 10.2 0.128 50 Hz 70 V 10 V 0.0039 10.2 0.128 60 Hz 85 V 12 V LSA 47.2 - 6 wires...

  • Page 18: Spare Parts

    LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 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 19: Exploded Views, Parts List And Tightening Torque

    Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 5.4 - Exploded view, parts list and tightening torque 5.4.1 - LSA 47.2 single-bearing...
  • Page 20 LEROY-SOMER Installation and maintenance 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS 5.4.2 - LSA 47.2 double-bearing...
  • Page 21 Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS Screw Torque Screw Torque Ref. Qty Description Ref. Qty Description Ø Ø Stator assembly Fixing screws Rotor assembly Inner bearing retainer Preloading (wavy) washer Lifting ring...
  • Page 22 Declares hereby that the electric generators of the types LSA 36 – 37– 40 – 42.2 – 43.2 – 44.2 – 46.2 – 47.2 – 49.1 – 50.2 – 51.2, as well as their derivatives, manufactured by Leroy Somer or on Leroy Somer's behalf,...
  • Page 23 Installation and maintenance LEROY-SOMER 3742 en - 2011.03/ g LSA 47.2 - 4 POLES ALTERNATORS...
  • Page 24 www.leroy-somer.com...

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