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3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS Installation and maintenance...
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LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 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...
LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 1 - RECEIPT Make sure that the nameplate on the machine conforms to your order. 1.1 - Standards and safety measures 1.4 - Storage...
2.2 - Mechanical characteristics - Steel frame 2.1 - Electrical characteristics - Cast iron end shields The LSA 43.2/44.2 alternator is a machine - Protected ball bearings, greased for life without sliprings or revolving armature - Mounting arrangements: brushes, wound as “2/3 pitch”, 12-wire,...
LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 3 - INSTALLATION • Coupling Personnel undertaking various Single-bearing alternator operations indicated in this section must Before coupling the machines, check that wear personal protective equipment...
Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS - the cooling air is drawn in freely, There are 2 possible methods for restoring - the protective grilles and housing are cor- the above minimum values.
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LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS Connection codes L.L. voltage Factory connection 50 Hz 60 Hz Winding 220 - 240 220 - 240 1 phase 250 - 260 220 - 240 R 250 voltage sensing: 0 =>...
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Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS SINGLE-PHASE 4-WIRE - type M or M1 DEDICATED WINDING SERIAL CONNECTION PARALLEL CONNECTION (Not possible with LSA 44.2) Voltage 50/60Hz Output Voltage 50/60Hz Output...
LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS • 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.
Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 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.
LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 4.3 - Bearings The bearings are permanently Approximate life of the grease (depending on use) greased = 20,000 hours or 3 years. As an option, the bearings are...
Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 4.5 - Electrical faults Fault Action Effect Check/Cause The alternator builds up and its voltage is still correct - Lack of residual magnetism when...
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LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS • 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.
Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 4.6 - Dismantling, reassembly - Refit the air intake grille [51] - Replace the terminal box lid [48] WARNING • Access to connections and the...
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LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS • Accessing the main field and stator - Dismantling NDE shield Follow the procedure for dismantling the Rotor bearings (see sections 4.6.5.1 and 4.6.6.1)
LSA 43.2/44.2 - 4 POLES ALTERNATORS 4.7 - Installation and maintenance of • 3-phase LSA 43.2 4 P, AREP excitation the PMG Resistances at 20 °C (Ω) For the LSA 43.2 and LSA 44.2, the PMG Stator Wind. Wind. reference is PMG 1. Rotor Field Armat.
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LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS • 3-phase LSA 44.2: 4-pole, SHUNT • Dedicated single-phase LSA 44.2: excitation 4-pole, SHUNT excitation (60 Hz only) Resistances at 20 °C (Ω) Resistances at 20 °C (Ω) LSA 44.2 Stator L/N Rotor...
Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 5 - SPARE PARTS can dispatch the necessary parts without delay. 5.1 - First maintenance parts Emergency repair kits are available as an To ensure correct operation and the safety option.
LEROY-SOMER Installation and maintenance 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS 5.4 - Exploded view, parts list and tightening torque • LSA 43.2 / 44.2 single-bearing...
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Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS • LSA 43.2 / 44.2 double-bearing...
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Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS Screw Torque Screw Torque Ref. Qty Description Ref. Qty Description Ø Ø Stator assembly NDE bearing Preloading wavy Rotor assembly washer Exciter field Fixing screws Exciter field fixing (44.2 only)
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Installation and maintenance LEROY-SOMER 3434 en - 2013.01 / k LSA 43.2/44.2 - 4 POLES ALTERNATORS Electric Power Generation Division Declaration of CE compliance and incorporation This Declaration applies to the generators designed to be incorporated into machines complying with the Machinery Directive Nr 2006/42/CE dated 17 May 2006.