Leroy-Somer LSA 43.2 Manuale di istruzioni

2013.01 / k

343

349

347

48 59

124

198

100

107

16 15

322

324

325

320

323

320

207

120

217

This manual is to be given

to the end user

3434 en -

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

Installation and maintenance

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

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 rst 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

qualied 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 recommenda-

tions or symbols to alert the user to the po-

tential risk of accidents. It is vital that you

understand and take notice of the different

warning symbols 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

personnel.

WARNING SYMBOLS

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 Directives EC

and plus any other directives that may be

applicable.

Note: LEROY-SOMER reserves the right to

modify the characteristics of its products at

any time in order to incorporate the latest

technological developments. The informa-

tion contained in this document may there-

fore be changed without notice.

MOTEURS LEROY-SOMER

It may not be reproduced in any form without

prior authorization.

All brands and models have been registered

and patents applied for.

WARNING

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

CONTENTS

1 - RECEIPT............................................................................................................. 4

1.1 - Standards and safety measures............................................................................... 4

1.2 - Inspection ................................................................................................................. 4

1.3 - Identication ............................................................................................................. 4

1.4 - Storage ..................................................................................................................... 4

1.5 - Applications .............................................................................................................. 4

1.6 - Contraindications to use ........................................................................................... 4

2 - TECHNICAL CHARACTERISTICS .................................................................... 5

2.1 - Electrical characteristics ........................................................................................... 5

2.2 - Mechanical characteristics ....................................................................................... 5

3 - INSTALLATION .................................................................................................. 6

3.1 - Assembly .................................................................................................................. 6

3.2 - Checks prior to rst use............................................................................................ 7

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

4.3 - Bearings ................................................................................................................. 12

4.4 - Mechanical defects................................................................................................. 12

4.5 - Electrical faults ....................................................................................................... 12

4.6 - Dismantling, reassembly ........................................................................................ 14

4.7 - Installation & maintenance of the PMG .................................................................. 16

4.8 - Table of characteristics ........................................................................................... 16

5 - SPARE PARTS ................................................................................................. 18

5.1 - First maintenance parts .......................................................................................... 18

5.2 - Technical support service ....................................................................................... 18

5.3 - Exploded views, parts list and tightening torque .................................................... 19

EC declaration of incorporation.......................................................................... 22

LEROY-SOMER 2013.01 / k

ALTERNATORS

CUS

IEC 60034-1 & 5 NEMA MG1-32 & 33 www.leroy-somer.com 1.025.002 a

Made in ............................ISO 8528-3

166631

IPLSA

N°:

Th.class.

A.V.R. Excit.

Excit. values full load : V / A

at no load : A

D.E. bearing

N.D.E. bearing

Altitude : m

kVA

Weight : kg

r.p.m.

P.F. :

RATINGS

Voltage

Phase

Conn.

Contin.

P.R.

B.R.

40°C.

Std by

27°C.

Date :

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

Nameplate

So that you can identify your machine quickly and accurately, we suggest you write its

specications on the nameplate below.

The machine name is dened according to various criteria, for example :

LSA 43.2 M45 J6/4

• LSA : name used in the PARTNER range

M : Marine - C : Cogeneration - T : Telecommunications

• 43.2 : machine type

• M45 : model

• J : excitation system (C : AREP / J : SHUNT or PMG)

• 6/4 : winding number / number of poles.

1 - RECEIPT

1.1 - Standards and safety

measures

Our alternators comply with most

international standards.

See the EC Declaration of Incorporation on

the last page.

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 - Identication

The alternator is identied by means of a

nameplate xed on the machine (see

drawing).

Make sure that the nameplate on the

machine conforms to your order.

1.4 - 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 signicant vibration.

1.5 - Application

These alternators are mainly designed to

produce electricity in the context of

applications involving the use of

generators.

1.6 - Contraindications to use

Use of the machine is restricted to operating

conditions (environment, speed, voltage,

power, etc) compatible with the characteri-

stics indicated on the nameplate.

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

2 - TECHNICAL CHARACTERISTICS

2.1 - Electrical characteristics

The LSA 43.2/44.2 alternator is a machine

without sliprings or revolving armature

brushes, wound as “2/3 pitch”, 12-wire,

with class H insulation and a eld excitation

system available in either SHUNT, AREP

or «PMG» version (see diagrams and AVR

manuals).

• Electrical options

- Stator temperature detection sensors

- Space heater

Interference suppression conforms to

standard EN 55011, group 1, class B

(Europe).

2.2 - Mechanical characteristics

- Steel frame

- Cast iron end shields

- Protected ball bearings, greased for life

- Mounting arrangements:

IM 1201 (MD 35) foot and ange mounted,

single-bearing with SAE coupling disc.

IM 1001 (B 34) double-bearing with SAE

ange and standard cylindrical shaft

extension.

- Drip-proof machine, self-cooled

- Degree of protection: IP 23

• Mechanical options

- Air inlet lter

- Regreasable ball bearings (only for

LSA 44.2 and SHUNT or AREP version)

- IP 44 protection

T1 T2 T3

T4 T5 T6

Varistor

5+ 6-

T7 T8 T9

T10 T11 T12

R 250

SHUNT SYSTEM

AREP SYSTEM

PMG SYSTEM

STATOR : 12-wire (marking T1 to T 12)

EXCITER

Field

Armature

EXCITER

Field

Armature

EXCITER

Field

Armature

MAIN FIELD

Power supply / Detection

T1 T2 T3

T4 T5 T6

Varistor

5+ 6-

T7 T8 T9

T10 T11 T12

R 438

Aux. windings

STATOR : 12-wire (marking T1 to T 12)

MAIN FIELD

Voltage reference

T1 T2 T3

T4 T5 T6

Varistor

5+ 6-

T7 T8 T9

T10 T11 T12

R 438

PMG

STATOR : 12-wire (marking T1 to T12)

MAIN FIELD

Voltage reference

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

3 - INSTALLATION

Personnel undertaking the various

operations indicated in this section must

wear personal protective equipment

appropriate for mechanical and electrical

hazards.

3.1 - Assembly

All mechanical handling operations

must be undertaken using suitable

equipment and the machine must be

horizontal. Check how much the machine

weighs (see 4.7) before choosing the

lifting tool.

During this operation, do not allow

anyone to stand under the load.

• Handling

The generously-sized lifting rings are for

handling the alternator alone. They must not

be used to lift the genset. The choice of

liftinghooksorhandlesshouldbedetermined

by the shape of these rings. 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.

• Coupling

Single-bearing alternator

Before coupling the machines, check that

they are compatible by:

- undertaking a torsional analysis of the

transmission,

- checking the dimensions of the ywheel

and its housing, the ange, 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 ywheel 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 alternator

- Semi-exible 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 room where the alternator is placed

must be ventilated to ensure that the

ambient temperature cannot exceed the

data on the nameplate.

3.2 - Checks prior to rst 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.

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

L1(U)

L3(W)

T1 T7

T12

T10

T11

T8 L2(V)

A60 Hz50 Hz

190 - 208 190 - 240

220 - 230 -

- 190 - 208

T12

T10

T3 T6

T11 T5

L1(U)

L3(W) L2(V)

L1(U)

L2(V)

L3(W)

T12

T10

T11

T5 T6

60 Hz50 Hz

380 - 415 380 - 480

440 - 460 -

- 380 - 416

L1(U)

L2(V)

L3(W)

T12

T10

T11

Connection codes L.L. voltage

R 250 voltage sensing:

0 => (T8) / 110 V => (T11)

R 438 voltage sensing:

0 => (T3) / 110 V => (T2)

R 250 voltage sensing:

0 => (T8) / 110 V => (T11)

R 438 voltage sensing:

0 => (T3) / 380 V => (T2)

Winding

3 phases

Factory connection

NDE

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 eld 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.

Ensure that the alternator has the

degree of protection matching the

dened environmental conditions.

• Mechanical checks

Before starting the machine for the rst time,

check that:

- all xing bolts and screws are tight,

WARNING

- the cooling air is drawn in freely,

- the protective grilles and housing are cor-

rectly in place,

- the standard direction of rotation is clock-

wise as seen from the shaft 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).

3.3 - Terminal connection diagrams

To modify the connection, change the

position of the stator cables on the terminals.

The winding code is specied on the

nameplate.

Any intervention on the alternator

terminals during reconnection or checks

should be performed with the machine

stopped.

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

FL1(U)

L3(W)

T12

T10

T11 T5 T2

L2(V)

L1(U)

L2(V)

L3(W)

FF 60 Hz50 Hz

220 - 240 220 - 240

220 - 240

200

250 - 260 -

T12

T10

T11 T4

60 Hz50 Hz

220 - 240 220 - 240

220 - 240

200

250 - 260 -

T7 T12

T10

T11

T1 T7

T12

T10

T11

T2 T8

T12

T10

T11

G60 Hz50 Hz

220 - 240 220 - 240

250 - 260

200

220 - 240

T12

T10

T11

L1(U)

L2(V)

L3(W)

60 Hz50 Hz

110 - 120 120

110 - 120

120 - 130 -

T12

T10

T11

L3(W)

T10

T9 T3

T11

T5 T2

L2(V)

T12

L1(V)

Connection codes L.L. voltage Factory connection

LM voltage = 1/2 LL voltage

R 250 voltage sensing:

0 => (T1) / 110 V => (T4)

R 438 voltage sensing:

0 => (T10) / 220 V => (T1)

R 250 voltage sensing:

0 => (T8) / 110 V => (T11)

R 438 voltage sensing:

0 => (T3) / 220 V => (T2)

1 phase

3 phases

Winding

NDE

FOR LSA 44.2, THE COUPLING BIS NOT POSSIBLE

LM voltage = 1/2 LL voltage

Connection not

recommended

R 250 voltage sensing:

0 => (T8) / 110 V => (T11)

R 438 voltage sensing:

0 => (T3) / 110 V => (T2)

R 250 voltage sensing:

0 => (T8) / 110 V => (T11)

R 438 voltage sensing:

0 => (T3) / 220 V => (T2)

Winding

1 phase

3 phases

NDE

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

T1 T4

L L

L - L

220

230

240

110

115

120

T2 - T3 T2 - T3T1 T4

L - M L L M

L - L

110

115

120

T1 - T3

T2 - T4 -T1-T3 T2 - T4

L - M L L M

SERIAL CONNECTION PARALLEL CONNECTION (Not possible with LSA 44.2)

SINGLE-PHASE 4-WIRE - type M or M1 DEDICATED WINDING

R 251 voltage sensing: 0 => (T1) / 110 V => (T2) R 251 voltage sensing: 0 => (T1) / 110 V => (T2)

Voltage 50/60Hz

Link Link

Output Voltage 50/60Hz Output

• Exciter eld connection

6–

– –

R 250 R 438

6–

– –

Single-phase dedicated SHUNT version: R 251 AVR (2-wire output without terminal block)

Series connection (shunt excitation)

White

Blue

Black

RedRed

White

Blue

Black

Parallel connection (AREP or PMG excitation)

• Option connection diagram

A D F B F/F G

T1 T1 T1 T1 T1 T2

T2 T2 T2 T2 T9 T4

T3 T3 T3 T3 T3 T3

N N

ST4

LSA 43.2, 44.2

Ph1

Ph2

Ph3

101

102

103

104

130°C

Blue wire

150°C

Black wire

180°C

Red/white wire

R 791 T interference suppression kit (standard for CE marking) Voltage potentiometer

Voltage adjustment

by remote potentiometer

Noir

Bleu

Blanc

Anti condensation heater Thermistor (PTC) temperature

LEROY-SOMER 2013.01 / k

Installation and maintenance

LSA 43.2/44.2 - 4 POLES

ALTERNATORS

3434 en -

• 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 (ref 28) is connected to

the frame.

The connections inside the terminal box

must never be subjected to stress due to

cables connected by the user.

3.4 - Commissioning

The machine can only be started up and

used if the installation is in accordance

with the regulations and instructions

dened in this manual.

The machine is tested and set up at the

factory. When rst used with no load, make

sure that the drive speed is correct and

stable (see the nameplate). With the

regreasable bearing option, we recommend

greasing the bearings at the time of

commissioning (see section 4.2).

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 4.4).

3.5 - Setting up

The various adjustments during tests

must be made by a qualied engineer.

Ensure that the drive speed specied on

the nameplate is reached before

commencing adjustment.

After operational testing, replace all

access panels or covers.

TheAVR is used to make anyadjustments

to the machine.

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