background image

2

2022.11 / l

Electric Power Generation

Installation and maintenance

LSA 49.3

Low Voltage Alternator - 4 pole

5280 en -

SAFETY MEASURES

Before using your machine for the first time, 

it is important to read the whole of this 

installation and maintenance manual.

All necessary operations and interventions 

on this machine must be performed by a 

qualified technician.

Our technical support service will be pleased 

to provide any additional information you 

may require.

The various operations described in this 

manual are accompanied by 

recommendations or symbols to alert the 

user to potential risks of accidents. It is vital 

that you understand and take notice of the 

following warning symbols.

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 

personnel.

SAFETY INSTRUCTIONS

We wish to draw your attention to the 

following 2 safety measures which must be 

complied with:

a) During operation, do not allow anyone 

to stand in front of the air outlet guards, 

in case anything is ejected from them.

b) Do not allow children younger than 14 

to go near the air outlet guards.

A set of self-adhesive 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 alternators must not be put into 

service until the machines in which they 

are to be incorporated have been 

declared compliant with EC Directives 

plus any other directives that may be 

applicable.

This manual is to be given to the end 

user.

The range of electric alternators and 

their derivatives, manufactured by us or 

on our behalf, comply with the technical 

requirements of the customs Union 

directives.

The alternator is a sub-assembly 

delivered without a system of protection 

against short-circuits. The protection 

must be provided by the circuit-breaker 

of the generator, sized to interrupt the 

fault current.

© 2022 Moteurs Leroy-Somer SAS

Share  Capital:  38,679,664  €,  RCS Angoulême 

338 567 258.

We reserve the right to modify the characteristics 

of this product at any time in order to incorporate 

the latest technological developments. The 

information contained in this document may 

therefore be changed without notice.

This document may not be reproduced in any 

form without prior authorization.

All brands and models have been registered and 

patents applied for.

WARNING

This manual concerns the alternator which you have just purchased.

We wish to draw your attention to the contents of this maintenance manual. 

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...

Отзывы: