Réf. 3281 en - 10.2007 / g n to e v i be g o t s ua l i n ser a u m d n s Th i the e 49 48 193 190 205 198 203 50 41 4 P5 P4 P3 LSA 50.1 / LSA 51.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS This manual concerns the alternator which you have just purchased. The latest addition to a whole new generation of alternators, this range benefits from the experience of the leading manufacturer worldwide, using advanced technology and incorporating strict quality control. We wish to draw your attention to the contents of this maintenance manual.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS CONTENTS 1 - RECEIPT .............................................................. 4 Standards and safety measures Inspection Identification Storage 2 - TECHNICAL CHARACTERISTICS ..................... 5 Electrical characteristics Options Mechanical characteristics Options 3 - INSTALLATION ..................................................
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS RECEIPT 1 - RECEIPT . 1.1 - Standards and safety measures Our alternators comply with most international standards and are compatible with : - the recommendations of the International Electrotechnical Commission IEC 34-1, (EN 60034). - the recommendations of the International Standards Organisation ISO 8528. - the European Community directive 89/336/EEC on Electromagnetic Compatibility (EMC).
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS TECHNICAL CHARACTERISTICS 2 - TECHNICAL CHARACTERISTICS 2.1 - Electrical characteristics LSA 50.1 / 51.2 alternators are machines without sliprings or revolving field brushes, wound as "2/3 pitch", 6-wire, with class H insulation and a field excitation system available in either AREP+PMI or "PMG" version (see diagrams). STATOR MAIN FIELD Aux.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS INSTALLATION 3 - INSTALLATION 3.1.3 - Location 3.1 - Assembly Ensure that the ambient temperature in the room where the alternator is placed cannot exceed 40°C for standard power ratings (for temperatures > 40°C, apply a derating coefficient). Fresh air, free from damp and dust, must be able to circulate freely around the air intake grille on the opposite side from the coupling.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS INSTALLATION 3.3 - Terminal connection diagrams To modify the connections, change the position of the terminal cables. The winding code is specified on the nameplate. 3.3.1 - Terminal connection Any intervention on the alternator terminals during reconnection or checks should be performed with the machine stopped.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE 4 - SERVICING - MAINTENANCE 4.1 - Safety measures temperature. Should this value be exceeded, the machine must be stopped and checks carried out. 4.2.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE 4.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE 4.5.1 - Checking the winding You can check the winding insulation by performing a high voltage test. In this case, you must disconnect all AVR wires. Assembly A : Connect a 24 V battery in series with a rheostat of approximately 50 ohms - 300 W and a diode on both field wires (5+) and (6-).
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE 4.6 - Dismantling, reassembly (see sections 5.4.1. & 5.4.2) During the warranty period, this operation should only be carried out in an approved workshop or in our factory, otherwise the warranty may be invalidated. Whilst being handled, the machine should remain horizontal. 4.6.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE 4.6.6 - Replacing the DE bearing on twobearing machines See sections 4.6.7 and 4.6.8 WARNING 40 LSA 50.1 4.6.9 - Reassembling the rotor 410 If the rotor has been fully rewound, it must be rebalanced. 68 Ø120 Ø230 Ø130 62 60 4.7 - Installation and maintenance of the PMG 48 LSA 51.2 After operational testing, replace all access panels or covers.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SERVICING - MAINTENANCE has already been assembled. 4.7.3 - Electrical connection - Connect the 3 PMG wires (14/15/16) to terminals X1,X2,Z2 on the AVR (see 2.3.2). If the alternator is being connected to an AREP machine, the 4 auxiliary winding wires X1.X2.Z1.Z2 should be isolated using the domino fitting supplied with the kit. Both field wires (5/6) and the voltage sensing wires (2/3) remain in place.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SPARE PARTS 5 - SPARE PARTS 5.1 - First maintenance parts Emergency repair kits are available as an option. The Emergency Kit consists of a set of 6 diodes, a varistor, an AVR and 2 fuses, loose. The Rotating Diode Assembly consists of the disk, the 6 diodes, and the varistor, assembled.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SPARE PARTS 275 321 325 323 322 Option SAE 0 17 41 279 280 300 271 270 59 320 15 33 34 4 1 18 P2 P3 P4 P5 P1 100 49 91 48 90 193 78 190 70 205 198 349 203 36 79 50 36 41 72 47 106 5.3.2 - Exploded view : single-bearing LSA 50.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SPARE PARTS 91 16 60 275 22 410 62 411 Option SAE 0 17 41 279 280 300 271 270 59 68 15 33 34 4 1 18 100 P2 P3 P4 P5 P1 49 90 48 78 193 70 190 349 205 79 198 36 203 50 72 41 106 47 5.3.3 - Exploded view : two-bearing LSA 50.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SPARE PARTS 275 41 323 322 15 321 320 30 33 19 279 280 300 271 270 59 34 4 1 P3 P5 P4 P2 P1 49 28 48 193 100 190 91 205 90 198 36 78 203 70 50 36 41 47 106 5.3.4 - Exploded view : single-bearing LSA 51.
LEROY-SOMER INSTALLATION AND MAINTENANCE Réf. 3281 en - 10.2007 / g LSA 50.1 / LSA 51.2 ALTERNATORS SPARE PARTS 320 33 275 30 15 60 68 33 62 321 34 41 279 280 300 271 270 59 19 4 1 P3 P4 P5 P2 P1 49 28 48 193 100 190 91 205 90 198 36 78 203 70 50 36 41 47 106 5.3.5 - Exploded view : two-bearing LSA 51.
Alternator Division 6 June 2007 EC DECLARATION OF INCORPORATION Concerns electric generators designed to be incorporated in machines subject to Directive no. 98/37/EC.
MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE 338 567 258 RCS ANGOULÊME S.A. au capital de 62 779 000 euros www.leroy-somer.
