LEROY-SOMEA LSA 40 Low Voltage Alternator Installation Guide
- June 16, 2024
- LEROY-SOMEA
Table of Contents
- LEROY-SOMEA LSA 40 Low Voltage Alternator
- Product Information
- Frequently Asked Questions
- RECEIPT
- TECHNICAL
- INSTALLATION
- SERVICING – MAINTENANCE
- Field excitation current i exc (A) 400V – 50 Hz
- Three-phase: 4-pole, AREP excitation
- Resistances at 20 °C (Ω)
- Field excitation current i exc (A) 400V – 50 Hz
- Dedicated single-phase M: 4-pole, SHUNT excitation
- Resistances at 20 °C (Ω)
- Field excitation current i exc (A) 230V – 50 Hz
- Table of weights
- SPARE PARTS
- 64/A, Main Road,
- Service & Supportwww
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
LEROY-SOMEA LSA 40 Low Voltage Alternator
Product Information
Specifications
- Electrical characteristics: 4 pole
- Mechanical characteristics: Low Voltage Alternator
Installation
Before installation, please ensure the following safety measures are followed:
- Do not allow anyone to stand in front of the air outlet guards during operation.
- Keep children younger than 14 away from the air outlet guards.
Servicing and Maintenance
To ensure proper functioning and longevity of the alternator, regular servicing and maintenance are recommended. Follow these steps:
- Inspect the alternator upon receipt for any damages during transit. Contact the transporter if there are signs of knocks or damage.
- Manually turn the machine to detect any malfunction.
Spare Parts
For maintenance and repairs, the following spare parts and services are available:
- First maintenance parts
- Technical support service
- Exploded views, parts list, and tightening torque
Disposal and Recycling
Please follow the disposal and recycling instructions provided in the manual for proper disposal of the alternator.
Frequently Asked Questions
Q: What should I do if I notice any damage to the alternator upon receipt?
A: If there are signs of knocks or damage, contact the transporter and perform a visual check as well as manually turning the machine to detect any malfunction.
Q: Where can I find spare parts for the LSA 40 alternator?
A: The manual provides information on first maintenance parts, technical support service, and exploded views with a parts list and tightening torque. Refer to these sections for spare parts information.
This manual concerns the alternator which you have just purchased.
We wish to draw your attention to the contents of this maintenance manual.
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
- 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.
RECEIPT
Standards and safety measures
Our alternators comply with most international standards.
See the EC Declaration of Incorporation on the last page.
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.
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.
- So that you can identify your alternator quickly and accurately, we suggest you fill in its specifications on the nameplate below.
Storage
Prior to commissioning, machines should be stored:
away from humidity (< 90%); after a long period of storage, check the machine
insulation. To prevent the bearings from becoming marked, do not store in an
environment with significant vibration.
Applications
This alternator is mainly designed to produce electricity in the context of
applications involving the use of generators.
Usage restrictions
Use of the machine is restricted to operating conditions (environment, speed,
voltage, power, etc) compatible with the characteristics indicated on the
nameplate.
TECHNICAL
CHARACTERISTICS
Electrical characteristics
This alternator is a machine without sliprings or revolving armature brushes,
wound as “2/3 pitch”, 4 or 12-wire, with class H insulation and a field
excitation system available in either SHUNT or AREP version (see diagrams and
AVR manuals).
Electrical options
- Stator temperature detection sensors
- Space heaters
- R791 interference suppression
Mechanical characteristics
- Steel frame
- Aluminum end shields
- Protected ball bearings, greased for life
- Mounting 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 23
Mechanical options
- Direct output power by cables (not reconnectable), regulator fitted outside the alternator
- Protection against harsh environments
- Air inlet filter, air outlet filter
- Alternators fitted with air inlet filters are subject to a power derating of 5%.
- To prevent excessive temperature rise caused by clogged filters, it is advisable to fit the stator winding with thermal sensors (PTC).
SHUNT dedicated single-phase 4-wire
SHUNT three-phase 12-wire
AREP three-phase 12-wire
INSTALLATION
Personnel undertaking the various operations indicated in this section must wear personal protective equipment appropriate for mechanical and electrical hazards.
Assembly
All mechanical handling operations must be undertaken using suitable equipment
and the machine must be horizontal. Check how much the machine weighs before
choosing the lifting tool. During this operation, do not allow anyone to stand
under the load.
Handling
The generously-sized lifting eyes are for handling the alternator only. They
must not be used to lift the genset. The choice of lifting hooks or handles
should be determined by the shape of the lifting eyes. Choose a lifting system
which respects the integrity and the environment of the machine.
During this operation, do not allow anyone to stand under the load.
WARNING
After handling the machine using the lifting ring, snap on the plastic cover
provided in the maintenance manual wallet.
Single-bearing coupling
Before coupling, check the compatibility between 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, the flange, coupling discs and offset.
WARNING
- When coupling the alternator to the prime mover, do not use the fan to turn the alternator or rotor.
- The holes of the coupling discs should be aligned with the flywheel holes by cranking the engine.
- Make sure the machine is securely bedded in position during coupling.
- Check that there is lateral play on the crankshaft.
Double-bearing coupling
Semi-flexible coupling
Careful alignment of the machines is recommended, checking that the lack of
concentricity and parallelism of both parts of the coupling do not exceed 0.1
mm.
This alternator has been balanced with a 1/2 key.
Location
The location where the alternator is placed must be ventilated to ensure that
the ambient temperature cannot exceed the data on the nameplate.
Checks prior to first use
Electrical checks
Under no circumstances should an alternator, new or otherwise, be operated if
the insulation is less than 1 megohm for the stator and 100,000 ohms for the
other windings.
There are 2 possible methods for restoring the above minimum values.
- a) Dry out the machine for 24 hours in a drying oven at a temperature of 110 °C (without the regulator).
- b) Blow hot air into the air intake, having made sure that the machine is rotating with the exciter field disconnected.
Note : Prolonged standstill
In order to avoid these problems, we recommend the use of space heaters, as
well as turning over the machine from time to time. Space heaters are only
really effective if they are working continuously while the machine is
stopped.
WARNING
Ensure that the alternator has the degree of protection matching the defined
environmental conditions.
When the alternator’s power output is ensured directly through cables, these must be connected before start-up.
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 cooling air is drawn in freely,
-
the protective grille and housing are cor-rectly in place,
-
the standard direction of rotation is clock-wise as seen from the drive end (phase rotation in order 1 – 2 – 3).
For anti-clockwise rotation, swap 2 and 3. -
the winding connection corresponds to the site operating voltage (see section 3.3).
Terminal connection diagrams
To modify the connection, change the position of the stator cables on the
terminals. The winding code is specified on the nameplate.
Any intervention on the alternator terminals during reconnection or checks should be performed with the machine stopped. In no case should the internal connections in the terminal box be subjected to stresses due to cables connected by the user.3
SHUNT dedicated single-phase 4-wire
SHUNT or AREP three-phase 12-wire
SHUNT or AREP three-phase 12-wire
Option connection diagram
Connection checks
Electrical installations must comply with the current legislation in force in
the country of use.
Check that:
-
The residual circuit-breaker conforms to legislation on protection of personnel, in force in the country of use, and has been correctly installed on the alternator power output as close as possible to the alternator. (In this case, disconnect the wire of the interference suppression module linking the neutral).
-
Any protection devices in place have not been tripped.
-
If there is an external AVR, the connections between the alternator and the cabinet are made in accordance with the connection diagram.
-
There is no short-circuit phase-phase or phase-neutral between the alternator output terminals and the generator set control cabinet (part of the circuit not protected by circuitbreakers or relays in the cabinet).
-
The machine should be connected with the busbar separating the terminals as shown in the terminal connection diagram.
-
The alternator earth terminal inside the terminal 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 by the user.
The machine can only be started up and used if the installation is in
accordance with the regulations and instructions defined in this manual.
The machine is tested and set up at the factory. When first used with no load,
make sure that the drive speed is correct and stable (see the nameplate). With
the On application of the load, the machine should achieve its rated speed and
voltage; however, in the event of abnormal operation, the machine setting can
be altered (follow the adjustment procedure in section 3.5). If the machine
still operates incorrectly, the cause of the malfunction must be located (see
section 4.5).
Setting up
The various adjustments during tests must be made by a qualified engineer.
Ensure that the drive speed specified on the nameplate is reached before
commencing adjustment.
After operational testing, replace all access panels or covers.
The AVR is used to make any adjustments to the machine.
SERVICING – MAINTENANCE
Safety measures
Servicing or troubleshooting must be carried out strictly in accordance with
instructions so as to avoid the risk of accidents and to maintain the machine
in its original state.
All such operations performed on the alternator should be undertaken by
personnel trained in the commissioning, servicing and maintenance of
electrical and mechanical components, who must wear personal protective
equipment appropriate for mechanical and electrical hazards.
Before any intervention on the machine, ensure that it cannot be started by a
manual or automatic system and that you have understood the operating
principles of the system.
Warning : During and after running, the alternator will reach temperatures hot enough to cause injury, such as burns.
Routine maintenance
Checks after start-up
After approximately 20 hours of operation, check that all fixing bolts on the
machine are still tight, plus the general state of the machine and the various
electrical connections in the installation.
Electrical Servicing
Commercially available volatile degreasing agents can be used.
WARNING
- Do not use trichloroethylene, perch-ethylene, trichloroethane or any alkaline products.
- These operations must be performed at a cleaning station, equipped with a vacuum system that collects and flushes out the products used.
- The insulating components and the impregnation system are not at risk of damage from solvents. Avoid letting the cleaning product run into the slots.
- Apply the product with a brush, sponging frequently to avoid accumulation in the housing. Dry the winding with a dry cloth. Let any traces evaporate before reassembling the machine.
Mechanical servicing
WARNING
Cleaning the machine using water or a highpressure washer is strictly prohi-bited. Any problems arising from such treatment are not covered by our warranty.
- Degreasing: Use a brush and detergent (suitable for paintwork).
- Dusting: Use an air gun.
If the machine is fitted with air inlet and outlet filters, the maintenance personnel should clean them routinely at regular intervals. In the case of dry dust, the filter can be cleaned using compressed air and/or replaced if it is clogged.
After cleaning the alternator, it is essential to check the winding insulation (see sections 3.2 and 4.5).
Bearings
The bearings are permanently greased| Approximate life of the grease
(depending on use) = 20,000 hours or 3 years.
---|---
Mechanical defects
Fault | Action |
---|
Bearing
| Excessive overheating of one or both bearings
(bearing temperature 80°C above the ambient temperature)
| – If the bearing has turned blue or if the grease has turned black, change the bearing.
– Bearing not fully locked (abnormal play in the bearing cage)
– End shields incorrectly aligned
Abnormal temperature
| Excessive overheating of alternator frame (more than 40° C above the ambient temperature)| – Air flow (inlet-outlet) partially clogged or hot air is being
recycled from the alternator or engine
– Alternator operating at too high a voltage (>105% of Un on load)
– Alternator overloaded
Vibrations
| ****
Too much vibration
| – Misalignment (coupling)
– Defective mounting or play 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 significant impact, followed by humming and vibration
| – System short-circuit
– Misparalleling
Possible consequences
– Broken or damaged coupling
– Broken or bent shaft end
– Shifting and short-circuit of main field
– Fan fractured or coming loose on shaft
– Irreparable damage to rotating diodes/AVR, surge suppressor
Electrical faults
Fault | Action | 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 is still correct when the battery is removed| ****
– Lack of residual magnetism
The alternator builds up but its voltage does not reach the rated value when the battery is removed| – Check the connection of the voltage reference to the AVR
– Faulty diodes
– Armature short-circuit
The alternator builds up but its voltage disappears when the battery is removed| – Faulty AVR
– Field windings open circuit (check winding)
– Revolving field coil open circuit (check the
resistance)
Voltage too
low
| ****
Check the drive speed
| ****
Correct speed
| Check the AVR connections (AVR may be faulty)
– Field windings short-circuited
– Rotating diodes burnt out
– Revolving field coil short-circuited (check the resistance)
Speed too low
| Increase the drive speed (do not touch the AVR voltage pot. (P2) before
running at the correct speed)
Voltage too high| Adjust AVR voltage potentiometer| Adjustment ineffective| –
Faulty AVR
Voltage oscillations
| ****
Adjust the AVR stability potentiometer
| ****
If no effect : try normal / fast recovery modes (ST2)
| – Check the speed: possibility of cyclic irregularity
– Loose connections
– Faulty AVR
– Speed too low when on load (or AVR LAM set
too high)
Voltage correct at no load and too low when on load (*)
| ****
Run at no load and check the voltage between E+ and
E- on the AVR
| Voltage between E+ and E–
SHUNT < 6V – AREP < 10V
| ****
– Check the speed (or AVR LAM set too high)
Voltage between E+ and E– SHUNT > 10V – AREP > 15V| – Faulty rotating diodes
– Short-circuit in the revolving field coil (check
the resistance)
– Faulty exciter armature (check the resistance)
Voltage disappears during operation
| Check the AVR, the surge suppressor, the rotating diodes, and replace any defective components| ****
The voltage does not return to the rated value
| – Exciter winding open circuit
– Faulty exciter armature
– Faulty AVR
– Revolving field coil open circuit or short-
circuited
Checking the winding
You can check the winding insulation by performing a high voltage test. In
this case, you must disconnect all AVR wires.
WARNING
Damage caused to the AVR in such conditions is not covered by our warranty.
Checking the diode bridge
A diode in good working order should allow the current to flow only in the
anode-to-cathode direction.
Checking the windings and rotating diodes using separate excitation
During this procedure, make sure that the alternator is disconnected from any external load and inspect the terminal box to check that the connections are fully tightened.
- Stop the unit, disconnect and isolate the AVR wires.
- There are two ways of creating an assembly with separate excitation.
Assembly A: Connect 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 exciter field wires (5+) and (6-).
Both these systems should have characteristics which are compatible with the
field excitation power of the machine (see the nameplate).
3) Run the unit at its rated speed.
4) Gradually increase the exciter field current by adjusting the rheostat or
the variac and measure the output voltages on L1 – L2 – L3, checking the
excitation voltage and current at no load (see the machine nameplate or ask
for the factory test report). When the output voltage is at its rated value
and balanced within 1% for the rated excitation level, the machine is in good
working order. The fault therefore comes from the AVR or its associated wiring
(ie. sensing, auxiliary windings).
Dismantling, reassembly
WARNING
During the warranty period, this operation should only be carried out in an
approved workshop or in our factory, otherwise the warranty may be
invalidated.
Whilst being handled, the machine should remain horizontal (rotor not locked
in position). Check how much the machine weighs before choosing the lifting
method.
Tools required
To fully dismantle the machine, we recommend using the tools listed below:
- 1 ratchet spanner + extension
- 1 torque wrench
- 1 set of flat spanners: 8 mm, 10 mm, 12 mm
- 1 socket set: 8, 10, 13 mm
- 1 socket TORX bit T20 and T30
- 1 puller (eg. Facom: U35, U32/350)
Screw tightening torque
See section 5.3.
The screws for fixing the feet on the housing and immobilising the stator must not be removed (screw of the stator lower).
Access to connections and the regulation system
Access is directly after removing the terminal box panel (41).
Accessing, checking and replacing the diode bridge
Dismantling
- Remove the terminal box panel (41).
- Cut the fixing clamps of the exciter cables, disconnect E+, E- from the exciter.
- Remove the nuts on the tie rods (37).
- Remove the NDE bracket (36) using a puller: eg. U.32 – 350 (Facom).
- Unsolder the connections.
- Check the bridge using an ohmmeter or a battery lamp.
Reassembly
- Replace the bridges, respecting the polarity.
- Resolder the connections.
- Refit the NDE bracket and pass the bundle of wires between the top bars of the bracket.
- Replace the fixing clamps on the cables.
- Replace the terminal box panel (41).
Replacing the NDE bearing on single bearing machines
Dismantling
- Remove the NDE bracket (36).
- Remove the ball bearing (70) using a screw puller.
Reassembly
- Heat the inner slipring of a new bearing by induction or in a drying oven at 80 °C (do not use an oil bath) and fit it to the alternator.
- Place the preloading wavy washer (79) in the bracket.
- Replace the NDE bracket (36).
Replacing the bearings on two-bearing machine
Dismantling
- Uncouple the alternator from the prime mover.
- Remove the assembly screws.
- Remove the DE bracket (30).
- Remove the NDE bracket (36).
- Remove both antifriction bearings (60) and (70) using a puller with a central screw.
Reassembly
- Heat the new bearings by induction or in a drying oven at 80°C (do not use an oil bath) and fit them to the alternator.
- Check that both the preloading wavy washer (79) have been fitted on the NDE bracket (36).
- Refit the DE bracket (30) and tighten the fixing screws.
- Check that the alternator assembly is correctly mounted and that all screws are tightened.
Accessing the revolving field coil and stator
Dismantling
Follow the procedure for dismantling bearings.
Remove the coupling discs (single-bearing alternator) or the DE bracket (two-
bearing alternator) and insert a tube of the corresponding diameter on the
shaft end or a support made according the following bellow.
- Rest the rotor on one of its poles, then slide it out. Use the tube as a lever arm to assist dismantling.
- After extracting the rotor, be careful not to damage the fan and place the revolving field on special V-shaped supports.
NOTE: If intervention is required on the revolving field coil (rewinding, replace-ment of components), the rotor assembly must be rebalanced.
Reassembling the revolving field coil
-
Follow the dismantling procedure in reverse order.
Take care not to knock the windings when refitting the rotor in the stator. -
If you replace the fan, respect the assembly guide according the following bellow. Use a tube and a screw.
Table of characteristics
Table of average values:
- Alternator – 4 pole – 50 Hz – Standard winding No. 6 (12-wire) and M (4-wire) connected in dedicated single-phase (400 V for the excitation values).
- The voltage and current values are given for no-load operation and operation at rated load with separate field excitation.
- All values are given to within ± 10% and may be changed without prior notification (for exact values, consult the test report).
- For 60 Hz machines, the “i exc” values are approximately 5 to 10 % lower.
Three-phase: 4-pole, SHUNT excitation Resistances at 20 °C (Ω)
Type| Stator L/N| Rotor| Exciter
field
| Exciter armature
---|---|---|---|---
VS1| 0.654| 2.96| 12.33| 1.64
VS2| 0.48| 3.24| 12.33| 1.64
S3| 0.423| 3.45| 12.33| 1.64
S4| 0.347| 3.77| 12.33| 1.64
M5| 0.285| 4.31| 12.33| 1.64
Field excitation current i exc (A) 400V – 50 Hz
“i exc”: excitation current of the exciter field
Type | No load | At rated load |
---|---|---|
VS1 | 0.77 | 1.94 |
VS2 | 0.78 | 1.97 |
S3 | 0.76 | 2.05 |
S4 | 0.75 | 2.06 |
M5 | 0.72 | 1.95 |
Three-phase: 4-pole, AREP excitation
Resistances at 20 °C (Ω)
Type| Stator L/N| Rotor| Exciter
field
| Exciter armature
---|---|---|---|---
VS1| 0.654| 2.96| 6.54| 1.64
VS2| 0.48| 3.24| 6.54| 1.64
S3| 0.423| 3.45| 6.54| 1.64
S4| 0.347| 3.77| 6.54| 1.64
M5| 0.285| 4.31| 6.54| 1.64
Resistance of auxiliary windings at 20 °C (Ω)
Type | X1, X2 | Z1, Z2 |
---|---|---|
VS1 | 0.452 | 0.375 |
VS2 | 0.364 | 0.311 |
S3 | 0.372 | 0.333 |
S4 | 0.342 | 0.356 |
M5 | 0.318 | 0.33 |
Field excitation current i exc (A) 400V – 50 Hz
“i exc”: excitation current of the exciter field
Type | No load | At rated load |
---|---|---|
VS1 | 1.06 | 2.65 |
VS2 | 1.06 | 2.69 |
S3 | 1.03 | 2.79 |
S4 | 1.03 | 2.80 |
M5 | 0.98 | 2.66 |
Dedicated single-phase M: 4-pole, SHUNT excitation
Resistances at 20 °C (Ω)
Type| Stator L/N| Rotor| Exciter
field
| Exciter armature
---|---|---|---|---
VS1| 0.149| 2.96| 12.33| 1.64
VS2| 0.114| 3.24| 12.33| 1.64
S3| 0.097| 3.45| 12.33| 1.64
S4| 0.081| 3.77| 12.33| 1.64
M5| 0.068| 4.31| 12.33| 1.64
Field excitation current i exc (A) 230V – 50 Hz
“i exc”: excitation current of the exciter field
Type | No load | At rated load |
---|---|---|
VS1 | 0.95 | 2.02 |
VS2 | 0.77 | 1.84 |
S3 | 0.75 | 1.78 |
S4 | 0.75 | 1.69 |
M5 | 0.71 | 1.54 |
Table of weights
(values given for information only)
Type | Total weight (kg) | Rotor (kg) |
---|---|---|
VS1 | 82 | 27 |
VS2 | 89 | 29 |
S3 | 96 | 32 |
S4 | 101 | 34 |
M5 | 109 | 37 |
After operational testing, it is essential to replace all access panels or covers.
SPARE PARTS
First maintenance parts
Here is the list of parts:
Single bearing kit | 5065809 |
---|
Non drive end bearing RLT025ET030
Preloading (wavy) washer
Two-bearing kit| 5030706
Drive end bearing RLT045ET030
Non drive end bearing RLT025ET030
Preloading (wavy) washer
Diode bridge with integrated varistor| 4659918
AVR SHUNT R220| 4815226
AVR AREP D350| 5124059
Technical support service
- Our technical support service will be pleased to provide any additional information you may require.
- For all spare parts orders or technical support requests, send your request to service.epg@leroy-somer.com or your nearest contact, whom you will find at www.lrsm.co/support indicating the comp-lete type of machine, its number and the information indicated on the nameplate.
- Part numbers should be identified from the exploded views and their description from the parts list.
- To ensure that our products operate correctly and safely, we recommend the use of original manufacturer spare parts.
- In the event of failure to comply with this advice, the manufacturer cannot be held responsible for any damage.
After operational testing, it is essential to replace all access panels or covers.
Exploded views, parts list and tightening torque
Single bearing
Two-bearing
Low Voltage Alternator – 4 pole
Ref.| Qty| Description| Screw Ø| Torque N.m|
Ref.| Qty| Description| Screw Ø| Torque N.m
---|---|---|---|---|---|---|---|---|---
1| 1| Stator assembly| –| –| 79| 1| Preloading (wavy) washer| –| –
4| 1| Rotor assembly| –| –| 90| 1| Exciter field (stator)| M6| 10
15| 1| Fan| M5| 4| 100| 1| Exciter armature (rotor)| –| –
28| 1| Earth terminal| M6| 10| 120| 1| Terminal block support| –| –
30
| ****
1
| Drive end (DE) flange (single bearing) or drive end (DE) bracket (two- bearing)| ****
–
| ****
–
| ****
124
| ****
1
| ****
Terminal block
| ****
–
| ****
–
33| 2| Air outlet grille| M5| 4| 133| 1| Cover (option)| M5| 3.6
36| 1| Non drive end (NDE)
bracket
| M8| 20| 134| 1| Support tab (option)| –| —
37| 4| Tie rod| –| –| 139| 1| Wire shield tube (option)| –|
40| 1| Plastic cap| –| –| 198| 1| Voltage regulator
(AVR)
| M5| 4
41| 2| Terminal box panel| M5| 3.6| 322| 1| Coupling disc| M10| 66
53| 1| Sealing cap| –| –| 343| 2| Diode bridge| M5| 4
60| 1| Drive end (DE) bearing| –| –| 410| 1| Drive end (DE) flange| M10| 40
70| 1| Non drive end (NDE)
bearing
| –| –| | | | |
Disposal and recycling instructions
We are committed to limiting the environmental impact of our activity. We
continuously monitor our production processes, material sourcing and product
design to improve recyclability and minimise our environmental footprint.
These instructions are for information purposes only. It is the user’s
responsibility to comply with local legislation regarding product disposal and
recycling.
Recyclable materials
Our alternators are mainly constructed from iron, steel and copper materials,
which can be reclaimed for recycling purposes. These materials can be
reclaimed through a combination of manual dismantling, mechanical separation
and melting processes. Our technical support depart-ment can provide detailed
directions on how to dismantle products on request.
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 terminal box, including the automatic voltage regulator (198), current transformers (176), interference suppression module and other semi-conductors.
- diode bridge (343) and surge suppressor (347), found on the alternator rotor.
- major plastic components, such as the terminal box structure on some products. These components are usually marked with information concerning the type of plastic.
- All materials listed above need special treatment to separate waste from reclaimable materials and should be entrusted to specialist recycling companies.
- The oil and grease from the lubrication system should be treated as hazardous waste and must be treated in accordance with local legislation.
- Our alternators have a specified lifetime of 20 years. After this period, the operation of the product should be stopped, regardless of its condition. Any further operation after this period will be under the sole responsi-bility of the user.
Moteurs Leroy-Somer
Boulevard Marcellin Leroy – CS 10015 16915 Angoulême cedex 9 – France
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
LEROY-SOMER ELECTROTECHNIQUE
Co., Ltd
No1 Aimosheng Road, Galshan Town,
Cangshan District.
Fuzhou, Fujian 350026 Chine
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 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 for generating sets”.
These generators also comply with the ROHS Directive Nr 2011/65/EU dated 8th June 2011 and its Annex II Nr 2015/863 dated 31st March 2015, as well as the EMC Directive Nr 2014/30/EU dated 26th 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 17th 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.
Service & Supportwww
servicesOur worldwide service network of over 80 facilities is at your service.This local presence is our guarantee for fast and efficient 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 all environments and on all machine types.We have a deep understanding of alternator operation, providing the best value service to optimise your cost of ownership.Where we can help:
Contact us:Americas: +1 (507) 625 4011EMEA: +33 238 609 908Asia Pacific: +65 6250 8488 China: +86 591 8837 3010India: +91 806 726 4867
Scan the code or go to:
Connect with us at:
References
- Somer Dental Labs | Quality, Experience, Consistency
- Trusted Partner in Helping to Solve the Biggest Challenges of Modern Life | Emerson US
- Leroy-Somer
- Leroy-Somer Alternators - Generators
- Leroy-Somer Alternators - Generators
- Leroy-Somer Alternators - Generators
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>