Leroy-Somer LSA 42.1 Series Installation And Maintenance Manual Download

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2344 fr/en - 11.2005 / b

ALTERNATEURS - A

ALTERNATEURS - ALTERNATORS

LTERNATORS

LSA ; LSA M ; LSA T ; 42.1/ 44.1/ 46.1/ 47.1

4 Pôles - COMPOUND - R 129

Installation et/and maintenance

Summary of Contents for LSA 42.1 Series

Page 1: ...b ALTERNATEURS A ALTERNATEURS ALTERNATORS LTERNATORS LSA LSA M LSA T 42 1 44 1 46 1 47 1 LSA LSA M LSA T 42 1 44 1 46 1 47 1 4 P les COMPOUND R 129 4 P les COMPOUND R 129 Installation et and maintenan...

Page 2: ...dant l utilisation l installation et l entretien de votre alternateur vous assurera un fonctionnement sans probl me pendant de longues ann es LEROY SOMER ALTERNATEUR Dear Customer As one of the world...

Page 3: ...urs d antiparasitage 8 2 R sistances de r chauffage l arr t 8 3 Sondes de temp ratures 8 4 Accessoires de raccordement INDEX 1 GENERAL 4 1 1 Specification 1 2 Principles of operation 2 INSTALLATION 5...

Page 4: ...incorporating a diverter type A V R R129 fitted within the terminal box They comply with most of the international standards follo wing the relevants paragraphs of the recommendations of the Internati...

Page 5: ...chappement 1 2 Principles of operation The alternator is a brushless design with the main field 4 beingsuppliedthrougharotatingdiodebridge 106 froman exciter armature 100 mounted on the same shaft Th...

Page 6: ...e putting the machine into service an insulation check between phase and earth and between phases is re commended For this operation the A V R must be dis connected This test should be done with a meg...

Page 7: ...e du groupe electrog ne partie du circuit non prot g e par les disjoncteurs ou relais de l armoire 2 3 Mechanical checks 2 3 1 Direction of rotation The alternator can be driven in either direction of...

Page 8: ...the catalogue 3 2 1 Internal connection diagram 6 wires ACT 8 Alternator ACT ACT R LSA 42 1 44 1 46 1 47 1 Alternateur ACT ACT R LSA 42 1 44 1 46 1 47 1 STATOR Bob auxiliaire Aux winding Pont redresse...

Page 9: ...ristance EXCITATRICE EXCITER E E COMPOUND P2 P1 S2 S1 X Y Z T4 T5 T6 T1 T2 T3 Tension Voltage 470 ohms Si connect enlever J2 If connected remove J2 R 03 RED E E S2 S1 0 220 380 P4 P6 P3 P2 P5 P1 R 129...

Page 10: ...CITER E E COMPOUND P2 P1 S2 S1 T4 T5 T6 T1 T2 T3 Tension Voltage 470 ohms Si connect enlever J2 If connected remove J2 R 03 RED E E S2 S1 0 220 380 P4 P6 P3 P2 P5 P1 R 129 J2 P1 Statisme Quad droop P2...

Page 11: ...inage Winding 60 Hz 50 Hz 380 415 440 480 347 380 416 Bornes r gulateur 0 380V AVR terminals T3 T2 T1 T4 T6 T5 AV D E AR N D E 6 S 8 S Bobinage Winding 60 Hz 50 Hz 220 240 200 220 240 Bornes r gulateu...

Page 12: ...0 347 380 416 Bornes r gulateur 0 380V AVR terminals T3 T2 T1 T4 T6 T5 AV D E AR N D E 6 S 8 S Bobinage Winding 60 Hz 50 Hz 220 240 200 220 240 Bornes r gulateur 0 220V AVR terminals L1 U L3 W T1 T4 T...

Page 13: ...nnal Approximate bearings life 60 000 hours when respec ting lubrication periodicity It is recommanded to grease the machine when rotating Time intervals and quantity of grease are given in the fol lo...

Page 14: ...42 1 44 1 46 1 47 1 Alternateur ACT ACT R LSA 42 1 44 1 46 1 47 1 D faut Fault Action Origine du d faut Origin of fault A Echauffement excessif du ou des paliers temp 80 C sur les chapeaux de rouleme...

Page 15: ...carcasse de l alternateur plus de 40 C au dessus de la temp rature ambiante Contr ler les entr es et sorties d air de l alternateur les appareils de mesure voltm tre amp rem tre temp ambiante Circuit...

Page 16: ...the A V R Readjust the potentiometer P2 voltage The alternator builds up but voltage collapses after battery removal A V R failure Check the connection of the sensing leads to the A V R Exciter windi...

Page 17: ...low on load Run on no load and check voltage bet ween E and E Voltage between E and E is 20 V d c Fault in rotating diodes Short circuit in main field check resistance Exciter armature field faulty ch...

Page 18: ...ay be necessary to remagnetize Proceed as follows Connect a 4 12 V battery to the terminals of the field winding for two or three seconds This should be carried out at rated speed 5 7 Normal average v...

Page 19: ...urant continu 5 8 Automatic Voltage Regulator R 129 CAUTION IT IS HAZARDOUS TO PROCEED TO ANY HIGH VOLTAGE TEST ON THE ALTERNATOR WI THOUT HAVING PREVIOUSLY DISCONNECTED ALL CONNECTIONS TO VOLTAGE REG...

Page 20: ...2 possibilities exist Between identical machines internal droop proportion nal to excitation voltage adjustable by P6 Universal with C T connected 2 VA secondary current 1A quadrature droop proportion...

Page 21: ...cessaires Sur le r gulateur Amp rem tre courant continu analogique pour mesurer I R E E calibre 1 Amp Voltm tre courantcontinuanalogique pourmesurerU exc calibre 30V Voltm tre alternatif pour mesurer...

Page 22: ...Other Gripping clips measurement of I R U exc 5 9 2 Initial tappings Check connections by refering to the internal connection diagram of the machine The secondaries of compounding transformer must be...

Page 23: ...ulator diverts nothing a Compound set too low b Voltage adjusted too high regulator Uexc Ir 5 means that the regulator cannot divert any more a Compound set too high b Voltage adjusted too low regulat...

Page 24: ...ounding transformer current transformer 5 11 1 Outline and diagram 5 11 2 Adjustment means on the compounding transformer without A V R The compounding transformer has 2 possibilities for adjsutment t...

Page 25: ...turns The transformation ratio is adjsuted by changing connections to the input terminals of the secondary windings Each secondary coils has three separate windings consisting of n turns 15 n turns a...

Page 26: ...to be made D fauts F Fault to be cleared Impossible tout v rifier N Impossible check again ou or et and sup rieur a b more than sup rieur ou gal a b equal or more than beaucoup sup rieur a b much more...

Page 27: ...Hz P3 O K R glage correct Actions A1 Flash the field with a battery see 7 6 A2 Increase airgap of compounding transformer see 4 2 A3 Adjust voltage On the regulator with pot P2 Or with remote voltage...

Page 28: ...lator R 129 Consult factory 5 12 2 Continuous operation in parallel with the mains with additionnal P F regulator R 725 Ask for relevant handbook 5 12 3 Continuous operation in parallel with the mains...

Page 29: ...ide No load F 52 ou or 63 Hz U A U T U A U T U A 1 3 U T Augmenter l entrefer Increase air gap Si impossible If impossible Erreur compound d faut des diodes tournantes ou pont redresseur Wrong compoun...

Page 30: ...stem the rheostat is preset to a fixed position value depending upon the load available for testing and the final conditions on site If the load available for testing is consuming enough reactive powe...

Page 31: ...an artificial neutral by connecting 3 resistors 220 10W instar totheoutputterminalsoftheauxiliarywinding Connect the circuit as shown in the diagram below with the alternator neutral connected to the...

Page 32: ...ur de compoundage In both cases the three voltages which are less than or greaterthanthe6othervoltagesmaybeusedtoidentifythe auxiliary winding phases auxiliary winding phase u is the one with the lowe...

Page 33: ...r partir le poids sur celle ci Retirer le palier arri re en respectant les instructions du paragraphe 6 3 1 6 DISMANTLING REASSEMBLY 6 1 Access to diodes Remove the air inlet screen 51 Disconnect the...

Page 34: ...outes les vis NOTA Lors d un d montage total rebobinage ne pas oublier de r equilibrer le rotor 6 4 REASSEMBLING ALTERNATOR 6 4 1 End shield reassembling Place rubber O ring 349 and wave washer 79 int...

Page 35: ...bearing cap 79 1 Rondelle de pr charge 79 1 Wavy washer 90 1 Inducteur d excitatrice 90 1 Wound exciter field 91 4 Vis de fixation 91 4 Bolts 100 1 Induit d excitatrice 100 1 Wound exciter armature 10...

Page 36: ...8 28 41 371 18 198 364 172 31 466 177 91 120 30 33 60 284 68 15 62 22 34 344 343 107 100 347 51 21 71 208 367 49 168 36 Alternator ACT ACT R LSA 42 1 44 1 46 1 47 1 Alternateur ACT ACT R LSA 42 1 44 1...

Page 37: ...371 18 198 364 172 31 466 177 91 120 344 343 107 100 347 51 21 71 208 367 49 168 78 323 322 325 320 15 321 34 30 33 4 37 Alternator ACT ACT R LSA 42 1 44 1 46 1 47 1 Alternateur ACT ACT R LSA 42 1 44...

Page 38: ...option R sistance froid des sondes thermistance 100 250 par sonde L1 U1 L2 V1 L3 W1 A raccorder la masse To be connected to frame N 8 ACCESSORIES 8 1 E M I suppressing capacitors 3 phase 3 x 0 5 F Co...

Page 39: ...7 1 Alternateur ACT ACT R LSA 42 1 44 1 46 1 47 1 8 4 Accessoires de raccordement 8 4 1 Machines 6 fils Pour la r alisation du couplage C il faut 3 shunts souples 8 4 Connection accessories 8 4 1 6 wi...

Page 40: ...MOTEURS LEROY SOMER 16015 ANGOUL ME CEDEX FRANCE 338 567 258 RCS ANGOUL ME S A au capital de 62 779 000 www leroy somer com...

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