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4

INSTALLATION AND MAINTENANCE

LSA 47.2 - 4 POLES

ALTERNATORS

RECEIPT

3742 en - 06.2007 / d

LEROY-SOMER

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).

- the European Community directives
73/23/EEC and 93/68/EEC (Low Voltage Directive)

They are CE marked with regard to the LVD (Low Voltage 
Directive) in their role as a machine component. A declaration 
of incorporation can be supplied on request.
Before using your generator for the first time, read carefully 
the contents of this installation and maintenance manual, 
supplied with the machine. All operations performed on the 
generator should be undertaken by qualified personnel with 
specialist training in the commissioning, servicing and 
maintenance of electrical and mechanical machinery. This 
maintenance manual should be retained for the whole of the 
machine’s life and be handed over with the contractual file.
The various operations described in this manual are 
accompanied by recommendations or symbols to alert the 
user to the potential risk of accidents. It is vital that you 
understand and take notice of the different warning symbols 
used.

1.2 - Inspection

On receipt of your alternator, check that it has not suffered 
any damage in transit. 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

The alternator is identified by means of a nameplate fixed on 
the machine (see drawing).
Make sure that the nameplate on the machine conforms to 
your order.
The machine name is defined according to various criteria, for 
example:  LSA 47.2 M7 C6/4 -
• LSA: name used in the PARTNER range
          M: Marine
          C: Cogeneration
          T: Telecommunications.
• 47.2: machine type
• M7: model
• C: excitation system
 (C: AREP/J: SHUNT or PMG/E: COMPOUND)
• 6/4 : winding number / number of poles.
 

1.3.1 - Nameplate

So that you can identify your machine quickly and accurately, 
we suggest you write its specifications on the nameplate 
below. 

1.4 -  Storage

Prior to commissioning, machines should be stored: 
- Away from humidity: in conditions of relative humidity of 
more than 90%, the machine insulation can drop very rapidly, 
to just above zero at around 100%; monitor the state of the 
anti-rust protection on unpainted parts. For storage over an 
extended period, the machine can be placed in a sealed 
enclosure (heatshrunk plastic for example) with dehydrating 
sachets inside, away from significant and frequent variations 
in temperature to avoid the risk of condensation during 
storage.
- If the area is affected by vibration, try to reduce the effect of 
these vibrations by placing the generator on a damper 
support (rubber disc or similar) and turn the rotor a fraction of 
a turn once a fortnight to avoid marking the bearing rings.

ALTERNATEURS                           ALTERNATORS

LSA                            Date   
N  5700 125897 A15                         Hz       
Min

-1

/R.P.M. 1500   Protection   

Cos Ø /P.F.  0,8  Cl. ther. / Th.class     
Régulateur/A.V.R.      R 438 B   
Altit.           m    Masse / Weight     
Rlt AV/D.E   bearing       6302 2 RS C3
Rlt AR/N.D.E bearing   6303 2 RS C3
Graisse / Grease            45g / 3600 h

Valeurs excit / Excit.  values 
en charge     /  full load
à vide           /  at no load

Made in France  - 1 024 959/a

Tension

 Voltage

Secours

Std by

40C

(*) Tension maxi. / maximum voltage

27C

PUISSANCE / RATING

Conforme à C.E.I  60034-1.  According to I.E.C  60034-1.

166631

Connex.

kVA

kW

A

kVA

kW

A

V

Ph.

Continue

Continuous

US

C

Summary of Contents for LSA 47.2

Page 1: ...This manual is to be given to the end user LSA 47 2 4 POLES ALTERNATORS 343 100 347 78 349 70 1 28 Installation and maintenance 3742 en 06 2007 d...

Page 2: ...ls used Warning symbol for an operation capable of damaging or destroying the machine or surrounding equipment Warning symbol for general danger to personnel Warning symbol for electrical danger to pe...

Page 3: ...ALLATION 3 1 Assembly 6 3 2 Checks prior to first use 6 3 3 Terminal connection diagrams 7 3 4 Commissioning 9 4 SERVICING MAINTENANCE 4 1 Safety measures 10 4 2 Routine maintenance 10 4 3 Fault detec...

Page 4: ...ication The alternator is identified by means of a nameplate fixed on the machine see drawing Make sure that the nameplate on the machine conforms to your order The machine name is defined according t...

Page 5: ...l characteristics The LSA 47 2 alternator is a machine without sliprings or revolving armature brushes wound as 2 3 pitch 6 or 12 wire with class H insulation and a field excitation system available i...

Page 6: ...cycling of hot air from the machine or engine but also exhaust fumes 3 2 Checks prior to first use 3 2 1 Electrical checks Under no circumstances should an alternator new or otherwise be operated if t...

Page 7: ...3 W L2 V D F L1 U M L3 W T1 T7 T12 T10 T4 T9 T3 T6 T11 T5 T2 T8 L2 V Voltage LM 1 2 voltage LL R 250 voltage sensing 0 T8 110 V T11 R 448 voltage sensing 0 T3 220 V T2 Winding 60 Hz 50 Hz 380 415 380...

Page 8: ...50 Hz R 448 voltage sensing 0 T3 220 V T2 9S 600 220 240 220 240 220 277 240 254 6S 7S 8S Winding 9 R 448 voltage sensing transformer Diagram on request NDE L1 U L2 V L3 W T4 T6 T5 T1 T2 T3 N L1 U L2...

Page 9: ...ed with the busbar separating the terminals as shown in the terminal connection diagram 3 4 Commissioning The machine can only be started up and used if the installation is in accordance with the regu...

Page 10: ...ceed 50 C above the ambient temperature Should this value be exceeded the machine must be stopped and checks carried out 4 2 4 Electrical servicing Cleaning product for the windings Do not use trichlo...

Page 11: ...on Effect Check Cause No voltage at no load on start up Connect a new battery of 4 to 12 volts to terminals E and E respecting the polarity for 2 to 3 seconds The alternator builds up and its voltage...

Page 12: ...ect a 12 V battery in series with a rheostat of approximately 50 ohms 300 W and a diode on both exciter field wires 5 and 6 Assembly B Connect a Variac variable power supply and a diode bridge on both...

Page 13: ...lid of the protective cover 48 and the side panels 366 and 367 Remove the hook 21 and the cover rear panel 365 Replace the hook 21 in order to manipulate the flange Disconnect the exciter wires 5 6 I...

Page 14: ...must be rebalanced 4 6 8 Reassembling the machine Mount the rotor 4 in the stator 1 see drawing above taking care not to knock the windings If using a single bearing or double bearing machine with the...

Page 15: ...he alternator shaft extension tapped hole to a torque of 30 Nm 4 Mount the magnetised rotor on the shaft adapter then using 2 M10 threaded rods screwed into the rotor slide the assembly onto the tie r...

Page 16: ...i exc A Symbols i exc excitation current of the exciter field For 60 Hz machines the i exc values are approximately 5 to 10 lower 4 8 2 Voltage of auxiliary windings at no load LSA 47 2 L N stator Ro...

Page 17: ...standard power is 250W with 220V or 250W with 110V on request Warning the power supply is present when the machine has stopped 5 3 2 Temperature sensors with thermistors PTC These are thermistor trip...

Page 18: ...er end shield 294 2 Fixing screws 37 5 Fixing screws 295 1 Tie rod 41 1 Cover front panel 296 1 Cable gland washer nut 48 1 Cover top panel 297 1 End plate 49 Cover screws 322 3 Coupling disc 51 1 Air...

Page 19: ...rews 292 1 Magnetic rotor 36 1 Exciter end shield 293 1 Stator 37 5 Fixing screws 294 2 Fixing screws 41 1 Cover front panel 295 1 Tie rod 48 1 Cover top panel 296 1 Cable gland washer nut 49 Cover sc...

Page 20: ...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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