Leroy-Somer LSA 41.1 AREP Installation And Maintenance Manual Download Page 1 | Manualshive

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Summary of Contents for LSA 41.1 AREP

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Page 2: ... Principles of operation 2 INSTALLATION 4 2 1 Location 2 2 Electrical checks 2 3 Mechanical checks Two bearing Belt and pulley drive Single bearing 3 STARTING UP 6 3 1 Preliminary checks Mechanical Electrical 3 2 Internal connection diagramm 3 3 Connection of output terminals 4 MAINTENANCE 10 4 1 Cooling circuit 4 2 Bearings 4 3 Abnormal noises 4 4 Recommended spare parts 5 SERVICE AND FAULT FINDI...

Page 3: ...non déformante équilibrée sur charge monophasée ou déséquilibrée la régulation de tension peut atteindre 5 Amorçage automatique sur la tension rémanente 1 1 1 Désignation 1 GENERAL 1 1 Specification Brushless alternators self excited by auxiliary windings acting as a booster self regulated by an automatic voltage regulator They comply with the following international standards I E C recommendation...

Page 4: ... pour les autres bobinages On peut trouver des valeurs inférieures en cas de stockage oud arrêtprolongé silamachineestutiliséedansunezone 1 2 Principle of operation The AVR is fed by 2 auxiliary windings located in the stator One of the windings 5A with shunt characteristic delive ring a voltage proportional to the generator s output vol tage and the second one 5B with a series characteristic deli...

Page 5: ...L10 de 20000 H à 1800 min 1 Tous les rou lements sont lu brifiés avec une graisse haute température To get to the minimum value there are several methods a Bakethemachinefor24hoursinanovenatabout110 C b Dry out the machine with a stream of hot air c Disconnect the voltage regulator short circuit the three output power terminals through connections capable of carrying the rated current if possible ...

Page 6: ...fréquence Vérifier si le strap ST4 ou le potentiomêtre extérieur sont raccordés Fonctionnements optionnels Strap ST1 coupé pour raccordement du module de dé tection triphasé R 730 Strap ST2 coupé pour temps de réponse rapide Strap ST5 coupé pour supprimer la fonction LAM Note In certain cases of special belt coupling where the data would not be those mentioned above please consult our Sillac plant...

Page 7: ...Alternator LSA 41 1 41 2 42 1 44 1 4P Alternateur LSA 41 1 41 2 42 1 44 1 4P 3 2 Schéma des connexions internes 3 2 Internal connection diagram ...

Page 8: ...Alternator LSA 41 1 41 2 42 1 44 1 4P Alternateur LSA 41 1 41 2 42 1 44 1 4P 3 3 Schéma de connexions des bornes 3 3 Output terminals connections ...

Page 9: ...ateurs triphaséscouplésenzigzag mêmesurchargeéquilibréesont plusbruyantsetontdavantagedevibrationsquelesmachines triphasées en régime équilibré 4 MAINTENANCE 4 1 Cooling circuit It is recommanded to check that the cooling air circulation is not restricted 4 2 Bearings The bearings are sealed for life Approximate grease life 20 000 hours or 3 years Temperature rise of ball bearings Periodically che...

Page 10: ... M O varistor surge suppressor 250V LSA 42 1 52A CI 1193 CII 042 EQ052 Fusible du régulateur AVR fuse 250V 6 3 A FI 5 x 20 PEL 006 FG008 Rep Designation LSA 42 1 Codification 60 Roulement côté bout d arbre D E bearing 6310 2RS C3 RLT 050 TS030 70 Roulement côté excitatrice N D E bearing 6308 2RS C3 RLT 040 TS030 198 Régulateur de tension Voltage regulator R 438 LS ESC 220 CU027 343 Croissant de di...

Page 11: ...gs temp of bearings over 80 C With of without abnormal bearing noise Disassemble bearings If the bearing has turned blue or if the grease has turned black change the bearing Bearing race badly locked moving in its housing Bracket misalignment B Echauffement excessif de la carcasse de l alternateur plus de 40 C au dessus de la température ambiante Contrôler les entrées et sorties d air de l alterna...

Page 12: ...ng between alternator and control board Object fallen into the machine Short circuit or flash in stator winding Défaut Defect Action Mesure Measure Controle L alternateur s amorce et sa tension reste normale après suppression de la pile Manque de rémanent Vérifier la tension E et E env 6 V U 10 V défaut diode ou excitatrice Absence de tension à vide au démarrage Brancher entre E et E une pile neuv...

Page 13: ...ery mode normal fast ST2 Check speed for possible cyclic irregularity Check out put connections Faulty A V R Voltage oscillation Speed below nominal on load or LAM set too high A rotating diode is open circuit Auxiliary winding is open circuit check resistance values Short circuit on main field check resistance Exciter armature winding faulty check resistance Tension entre E et E 6 V Vérifier la v...

Page 14: ...ttery to the terminals of the field winding for two or three seconds This should be carried out at rated speed 5 6 Normal average values 50 Hz 4 Pôles 400 V for excitation Values of voltages and currents are given for no load and full rated load operation with separate excitation All values are within 10 for real values consult test report and may be changed accordingly without notice For 60 Hz ma...

Page 15: ...cordement se fait à partir de languettes mâles Faston 6 3 5 5 5 6 5 7 Automatic Voltage Regulator R 438 LS CAUTION IT IS HAZARDOUS TO PROCEED TO ANY HIGH VOLTAGE TEST ON THE ALTERNATOR WI THOUT HAVING PREVIOUSLY DISCONNECTED ALL CONNECTIONS TO VOLTAGE REGULATOR DAMAGES OCCURING TO AVR IN SUCH CONDI TIONS WILL NOT BE CONSIDERED IN A WARRANTY CLAIM 5 7 1 General The PC board with electronic componen...

Page 16: ...déclen chement de la fonction LAM doit être réglé environ 2 Hz en dessous de la fréquence la plus basse en régime éta bli 0 0 1 Regulators data normal power supply 2 auxiliary windings X1X2 Z1Z2 shunt supply 100 to 150V 50 60Hz rated overload current 8A 10s electronic inbuilt protection overload short circuit loss of sensing the excitation current rises to ceiling level during 10 seconds then drop...

Page 17: ...Alternator LSA 41 1 41 2 42 1 44 1 4P Alternateur LSA 41 1 41 2 42 1 44 1 4P EFFETS TYPIQUES DU LAM AVEC UN MOTEUR DIESEL TURBO LAM TYPICAL EFFECT WITH TURBO CHARGED ENGINES ...

Page 18: ... generators remote voltage adjusting potentiometer 470Ω 1 Wmini giving an adjustment range of 5 centering of the range by using internal P2 potentiometer Remove ST4 to connect the potentiometer three phase sensing additional modul R 730 200 to 500 V Cut ST1 to connect the module Voltage is adjus ted by using the voltage adjustment potentiometer on the module power factor regulator 2 nd function an...

Page 19: ...ent la ten sion chute à environ 85 de la tension d alimentation Revenir à la position de départ de P4 La lampe doit briller comme précédemment 0 1 Réglage du régulateur R 438 LS 0 0 6 Static test AVR A proper operation of A V R through static tests does not mean necessarily it can operate properly in réal situation Reversely if the A V R does not react properly du ring static tests it is obviously...

Page 20: ... U interieur 0 1 AVR adjustment 0 1 1 Voltage LAM U F stability adjustment 0 1 1 1 Selection of operation mode sensing voltage A F 0 380 V frequency protection LAM selector jumper ST3 A F 50 Hz voltage recovery speed link ST2 A F standard voltage setting ST4 A F Internal Alternator LSA 41 1 41 2 42 1 44 1 4P Alternateur LSA 41 1 41 2 42 1 44 1 4P Bornes Terminals 50 Hz et and 60 Hz 0 110 V 0 220 V...

Page 21: ...ux Coupler les machines en parallèle En réglant la vitesse essayer d obtenir 0 Kw 0 1 1 2 Adjustment procedure a Initial setting of potentiometers P2 VOLTAGE lowest fully CCW P3 STABILITY middle position P1 QUADRATURE VOLTAGE DROP fully CCW P5 EXCITATION CURRENT LIMIT to be adjusted only if necessary see 5 8 2 maximum fully CW Remote voltage trimmer Rhe 470 Ω jumper ST4 re moved middle position b ...

Page 22: ...ntation par l interrup teur A Nota Après réglage du plafond d excitation selon cet te procédure reprendre le réglage de tension selon 5 8 1 2 Avoir un courant de court circuit égal à 3 IN est une obligation légale dans plusieurs pays pour permet tre une protection selective Do not alter the voltage adjustments n Switch on the available load correct adjustment can not be made if there is no reactiv...

Page 23: ...SA44 1 6 4 1 Démontage Retirer la grille d entrée d air 51 Débrancher les diodes Retirer la varistance 347 Déposer les croissants support de diodes 6 4 2 Remontage Changerlesdiodesdéfectueusesenrespectantlespolarités 6 DISMANTLING REASSEMBLY 6 1 Access to connections and regulation sys tem 6 1 1 LSA 41 1 41 2 42 1 Access to the terminals by removing the terminal box lid 48 In order to facilitate t...

Page 24: ...mbledelamachineetle serrage de toutes les vis NOTA Lors d un démontage total rebobinage ne pas oublier de réequilibrer le rotor 6 4 2 Reassembling Replace diode damaged to respect polarity ref 5 4 Reassemble M O varistor 347 Connect the diodes Replace the air inlet screen 51 6 5 N D E bearing replacing 6 5 1 Dismantling Remove N D E bracket 36 ref 6 3 1 Extract bearing 70 with a bearing puller 6 5...

Page 25: ...ice 100 1 Wound exciter armature 106 1 Ensemble disque porte diodes 42 1 106 1 Rotating diode assembly 42 1 107 1 Support de croissant 41 1 41 2 107 1 Rotating diode carrier 41 1 41 2 120 1 Semelle 120 1 Terminal plate support 124 2 Planchette à bornes 124 2 Terminal plate 135 1 Joint de capotage 135 1 Sealing 139 1 Joint de capotage 139 1 Sealing 198 1 Régulateur 198 1 A V R 199 4 Vis de fixation...

Page 26: ...Alternator LSA 41 1 41 2 4P Alternateur LSA 41 1 41 2 4P ...

Page 27: ...Alternator LSA 41 1 41 2 4P Alternateur LSA 41 1 41 2 4P ...

Page 28: ...Alternator LSA 42 1 4P Alternateur LSA 42 1 4P ...

Page 29: ...Alternator LSA 42 1 4P Alternateur LSA 42 1 4P ...

Page 30: ...Alternator LSA 44 1 4P Alternateur LSA 44 1 4P ...

Page 31: ...Alternator LSA 44 1 4P Alternateur LSA 44 1 4P ...

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