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2022.11 / l

Electric Power Generation

Installation and maintenance

LSA 49.3

Low Voltage Alternator - 4 pole

5280 en -

Moteurs Leroy-Somer

Headquarters: Boulevard Marcellin Leroy CS 10015 - 16915 Angoulême cedex 9 - France

SAS with share capital of 38,679,664 € - RCS Angoulême 338 567 258

Moteurs Leroy-Somer

Boulevard Marcellin Leroy - CS 10015 

16915 Angoulême cedex 9 - France 

4152 en - 2021.10 / v

 

Angoulême, 28 October 2021 

EC Declaration 

Moteurs Leroy-Somer declares hereby that the electric generators of the types: 

LSA 40 – LSA 42.3 – LSA 44.3 – LSA 46.3 – LSA 47.2 – LSA 47.3 – LSA 49.1 – LSA 49.3 – LSA 50.1 – 

LSA 50.2 – LSA 51.2 – LSA 52.2 – LSA 52.3 – LSA 53 – LSA 53.1 – LSA 53.2 – LSA 54 – LSA 54.2 – TAL 

040 – TAL 042 – TAL 044 – TAL 046 – TAL 047 – TAL 0473 – TAL 049 – LSAH 42.3 – LSAH 44.3  

as well as their derivatives, manufactured by Leroy-Somer or on Leroy-Somer's behalf: 

MOTEURS LEROY-SOMER 

Boulevard Marcellin Leroy 

16015 Angoulême 

France 

MLS HOLICE STLO.SRO 

Sladkovskeho 43 

772 04 Olomouc  

République Tchèque 

MOTEURS LEROY-SOMER 

1, rue de la Burelle 

Boite Postale 1517  

45800 St Jean de Braye  France 

LEROY-SOMER ELECTRO- 

TECHNIQUE Co., Ltd 

No1 Aimosheng Road, Galshan Town,  

Cangshan District.  

Fuzhou, Fujian 350026 Chine 

NIDEC INDUSTRIAL AUTOMATION 

INDIA PRIVATE Ltd - BANGALORE 

#

45, Nagarur, Huskur Road 

Off Tumkur Road,  

Bengaluru-562 162  Inde 

NIDEC INDUSTRIAL AUTOMATION 

INDIA PRIVATE Ltd - HUBLI 

#

64/A, Main Road,  

Tarihal Industrial Area, 

Tarihal, Hubli-580 026 Inde 

meet the requirements of the following standards and directives: 

Declaration of compliance: 

-

Low Voltage Directive Nr 2014/35/EU dated 26

th

 February 2014.

-

EN and IEC 60034-1, 60034-5 and 60034-22.

-

ISO 8528-3 “Reciprocating internal combustion engine driven alternating current generating sets. Part

3. Alternating current generators for generating sets”.

These generators also comply with the ROHS Directive Nr 2011/65/EU dated 8

th

 June 2011 and its Annex II 

Nr 2015/863 dated 31

st

 March 2015, as well as the EMC Directive Nr 2014/30/EU dated 26

th

 February 2014. 

Declaration of incorporation: 

These generators are designed to meet the essential requirements Annex I, chapters 1.1.2, 1.1.3, 1.1.5, 1.3.1 

to 1.3.3, 1.3.6 to 1.3.8.1, 1.4.1, 1.4.2.1, 1.5.2 to 1.5.11, 1.5.13, 1.6.1, 1.6.4, 1.7 (except 1.7.1.2) of Machinery 

Directive Nr 2006/42/EC, as well as Annex VII, part B of this directive and the aforementioned standards. 
As a result,  these "Partly  completed  machinery" are designed to be incorporated  into Electrical Gen-Sets 

complying with the Machinery Directive Nr 2006/42/EC dated 17

th

 May 2006. 

WARNING: 

The here mentioned generators should not be commissioned until the corresponding Gen-Sets have been  

declared in compliance with the Directives Nr 2006/42/EC, 2014/30/EU, 2011/65/EU and 2015/863, as well as 

with other relevant Directives. 
Moteurs Leroy-Somer undertakes to transmit, in response to a reasoned request by the national authorities, 

relevant information on the generator. 

Those responsible for compiling the technical files and this declaration are: 

Yannick MESSIN, Technical Manager LS Orléans, 1 rue de la Burelle, 45800 Saint Jean de Braye 

Jean-Pierre CHARPENTIER, Technical Manager LS Sillac, Bld Marcellin Leroy, 16015 Angoulême 

J.P. CHARPENTIER – Y. MESSIN 

The contractual EC Declaration of compliance and incorporation can be obtained from your contact on 

request.

Содержание LEROY-SOMER LSA 49.3

Страница 1: ...LSA 49 3 Low Voltage Alternator 4 pole Installation and maintenance...

Страница 2: ...stickers depicting the various warning symbols is included with this maintenance manual They should be positioned as shown in the drawing below once the machine has been fully installed WARNING The a...

Страница 3: ...3 1 Assembly 6 3 2 Checks prior to first use 6 3 3 Terminal connection diagrams 7 3 4 Commissioning 10 3 5 Setting up 10 4 SERVICING MAINTENANCE 11 4 1 Safety measures 11 4 2 Routine maintenance 11 4...

Страница 4: ...If there are obvious signs of knocks contact the transporter you may be able to claim on their insurance and after a visual check turn the machine by hand to detect any malfunction 1 3 Identification...

Страница 5: ...arrangement single bearing with standard feet and SAE flanges coupling discs two bearing with SAE flange and standard cylindrical shaft extension Drip proof machine self cooled Degree of protection IP...

Страница 6: ...een the alternator and the engine by performing undertaking a torsional analysis of the transmission alternators data are available on request checking the dimensions of the flywheel and its housing t...

Страница 7: ...defined environmental conditions Mechanical checks Before starting the machine for the first time check that all fixing bolts are tight the length of bolt and the tightening torque are correct the coo...

Страница 8: ...4 T9 T3 T6 T11 T5 T2 T8 L2 V T1 T2 T3 T4 T7 T5 T8 T4 T7 T5 T8 T4 T7 T5 T8 T6 T9 N T10 T11 T12 T1 T2 T3 T4 T12 T5 T10 T6 T11 W 3 L3 V 2 L2 U 1 L1 N T9 T8 T7 W 3 L3 V 2 L2 U 1 L1 W 3 L3 V 2 L2 U 1 L1 W...

Страница 9: ...T3 D350 U T1 V T2 W T3 or Connection codes Voltage Detection Factory connection Winding Winding DE NDE DE NDE Star Delta In case of reconnection ensure that AVR voltage sensing is correct The factory...

Страница 10: ...erminal box is connected to the electrical earth circuit The earth terminal is connected to the frame The connections inside the terminal box must never be subjected to stress due to cables connected...

Страница 11: ...electrical connections in the installation Electrical servicing Commercially available volatile degreasing agents can be used Do not use trichlorethylene perchlo rethylene trichloroethaneoranyalkalin...

Страница 12: ...in coupling Rotor balancing fault Engine Alternator Excessive vibration and humming noise coming from the machine Phase imbalance Stator short circuit Abnormal noise Alternator damaged by a significa...

Страница 13: ...t out Revolving field coil short circuited check the resistance Speed too low Increase the drive speed do not touch theAVR voltage pot P2 before running at the correct speed Voltage too high AdjustAVR...

Страница 14: ...battery Rh 50 300W ASSEMBLY A Field Assembly B Connect a Variac variable power supply and a diode bridge on both exciter field wires 5 and 6 Both these systems should have characteristics which are co...

Страница 15: ...p If the diodes are faulty Remove the surge suppressor 347 copper Shunt Remove the H nuts for mounting the diode bridges on the support Change the crescents respecting the polarity Access to connectio...

Страница 16: ...he DE bracket 30 screws and the inner bearing retainer 68 screws Remove the DE bracket 30 Take out the antifriction bearing 60 using a puller with a central screw Fit the new bearing after heating it...

Страница 17: ...eaded rod into the bracket hole to make it easier to assemble Fit the thrust bearing screws remove the threaded rod fit the other screw and tighten up the assembly Tighten the DE bracket 30 screws Ref...

Страница 18: ...AREP at 20 C Type X1 X2 Z1 Z2 S4 6 wire 0 249 0 297 S4 12 wire 0 257 0 312 M6 0 201 0 260 M8 0 205 0 268 L9 0 204 0 262 L10 0 208 0 269 Field excitation current i exc A AREP 400V 50 Hz i exc excitatio...

Страница 19: ...perature coefficient installed in the stator winding 1 per phase There can be a maximum of 2 triplets in the winding at 2 levels warning and trip and 1 thermistor in the rear bearing These sensors mus...

Страница 20: ...20 2022 11 l Electric Power Generation Installation and maintenance LSA 49 3 Low Voltage Alternator 4 pole 5280 en 5 4 Exploded views parts list and tightening torque Single bearing...

Страница 21: ...21 2022 11 l Electric Power Generation Installation and maintenance LSA 49 3 Low Voltage Alternator 4 pole 5280 en Two bearing...

Страница 22: ...le M6 8 3 130 1 Neutral busbar M12 35 36 1 Non drive end NDE bracket 172 6 Isolator M8 26 41 1 Terminal box front panel M8 20 176 1 Current transformer 47 1 Terminal box rear panel M8 20 198 1 Voltage...

Страница 23: ...Waste hazardous materials The following components and materials require special treatment and must be separated from the alternator before the recycling process electronic materials found in the term...

Страница 24: ...24 2022 11 l Electric Power Generation Installation and maintenance LSA 49 3 Low Voltage Alternator 4 pole 5280 en...

Страница 25: ...U dated 26th February 2014 EN and IEC 60034 1 60034 5 and 60034 22 ISO 8528 3 Reciprocating internal combustion engine driven alternating current generating sets Part 3 Alternating current generators...

Страница 26: ...26 2022 11 l Electric Power Generation Installation and maintenance LSA 49 3 Low Voltage Alternator 4 pole 5280 en...

Страница 27: ...icient repair support and maintenance services Trust your alternator maintenance and support to electric power generation experts Our field personnel are 100 qualified and fully trained to operate in...

Страница 28: ...www emersonindustrial com 2022 11 l www leroy somer com epg 5280 en Connect with us at...

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