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LSA 44.3

Low Voltage Alternators - 4 pole

Installation and maintenance

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Содержание LAROY-SOMER LSA 44.3

Страница 1: ...LSA 44 3 Low Voltage Alternators 4 pole Installation and maintenance ...

Страница 2: ...on 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 Aset of self adhesive stickers depicting the various warning symbols is included with this maintenance manual They should be positioned as sh...

Страница 3: ... 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 3 Bearings 12 4 4 Mechanical defects 12 4 5 Electrical faults 13 4 6 Dismantling reassembly 15 4 7 Installation maintenance of the PMG 17 4 8 Table of characteristics 17 18 5 SPARE PARTS 19 5 1 First maintenance pa...

Страница 4: ... 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 So that you can identify your alternator quickly and accurately we suggest you fill in its spec...

Страница 5: ...el frame Cast iron end shields Protected ball bearings greased for life Mounting arrangements foot and flange mounted single bearing with SAE coupling disc double bearing with SAE flange and standard cylindrical shaft extension Drip proof machine self cooled Degree of protection IP 23 Mechanical options Air inlet filter IP 44 protection T1 T2 T3 T4 T5 T6 Varistor 5 6 T7 T8 T9 T10 T11 T12 R 250 SHU...

Страница 6: ... 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 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 a...

Страница 7: ...void 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 defined environmental conditions Mechanical checks Before starting the machine for the first time check that all fixi...

Страница 8: ...ion LM voltage 1 2 LL voltage 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 1 phase or 3 phases Winding Winding NDE NDE LM voltage 1 2 LL voltage R 250 voltage sensing 0 T8 110 V T11 R 438 voltage sensing 0 T3 220 V T2 Winding 1 phase NDE L1 U L2 V L3 W M L L L L T9...

Страница 9: ... 0 T1 110 V T2 Voltage 50 60Hz Link Output Warning parallel connection not possible Option connection diagram A D F B F F G T1 T1 T1 T1 T1 T2 T2 T2 T2 T2 T9 T3 T3 T3 T3 T3 NC NC N N ST4 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 Black ...

Страница 10: ...ternator 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 3 4 Commissioning The machine can only be started up and used if the installation is in accordance with the regulations and instructions defined in this...

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

Страница 12: ...cled 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 i...

Страница 13: ...lving 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 voltage potentiometer Adjustment ineffective FaultyAVR Voltage oscillations Adjust the AVR stability potentiometer If no effect try normal or fast stability modes ST2 Check the speed possibility of cyclic irre...

Страница 14: ...iode 12V 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 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 var...

Страница 15: ...er or a battery lamp Refit the modules Refit the air intake grille 51 Access to connections and the regulation system The terminals are accessed directly by removing the terminal box lid 48 To access the AVR adjustment potentiometers the side plate 59 should be removed Replacing the NDE bearing on single bearing machines Dismantling Remove the terminal box lid 48 Unscrew the fixing clamps on the p...

Страница 16: ...E shield 32 and tighten the 8 fixing screws Check that the alternator assembly is correctly mounted and that all screws are tightened Accessing the main field and stator Dismantling Follow the procedure for dismantling the bearings Remove the coupling disc single bearing alternator or the DE shield twin bearing alternator and insert a tube of the corresponding diameter on the shaft end Rest the ro...

Страница 17: ...t 20 C Ω Type L N stator Rotor Exciter field Armature S2 0 0503 2 354 11 647 0 422 S3 0 0503 2 354 11 647 0 422 S4 0 039 2 578 12 941 0 459 S5 0 039 2 578 12 941 0 459 M6 0 0335 2 805 12 941 0 459 M8 0 0287 3 032 12 941 0 459 L10 0 0236 3 291 12 941 0 459 SHUNT excitation current 400 V 50 Hz i exc excitation current of the exciter field Type At no load On load S2 0 74 2 03 S3 0 74 2 27 S4 0 71 2 0...

Страница 18: ...7 1 3 S3 0 7 1 5 S4 0 7 1 3 S5 0 7 1 5 M8 0 6 1 3 4P dedicated single phase Winding M1 SHUNT excitation 60 Hz Resistances at 20 C Ω Type L N stator Rotor Exciter field Armature S2 0 0084 2 354 11 647 0 422 S3 0 0084 2 354 11 647 0 422 S4 0 0059 2 578 12 941 0 459 S5 0 0059 2 578 12 941 0 459 M6 0 0053 2 805 12 941 0 459 L10 0 0042 3 291 12 941 0 459 i exc excitation current A 240 V 60 Hz i exc exc...

Страница 19: ...emperature 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 or 2 thermistors in the shields These sensors must be linked to adapted sensing relays supplied optionally Cold resistance of cold thermistor sensors 100 to 250 Ω per sensor 5 2 Technical support service Our technical support service will be plea...

Страница 20: ...2018 01 g 20 Electric Power Generation Installation and maintenance LSA 44 3 Low Voltage Alternators 4 pole 5056 en 5 4 Exploded view parts list and tightening torque Single bearing ...

Страница 21: ...2018 01 g 21 Electric Power Generation Installation and maintenance LSA 44 3 Low Voltage Alternators 4 pole 5056 en Double bearing ...

Страница 22: ...ield 29 1 Earth continuity screw M6 10 91 4 Fixing screws exciter M6 10 30 1 DE shield 100 1 Exciter armature 31 8 Fixing screw M12 69 107 1 Diode module support M5 6 32 1 S A E washer 124 1 Terminal plate M6 5 33 2 Air outlet grille M6 5 198 1 Voltage regulator AVR M5 3 6 36 1 NDE shield 199 1 Interference suppression module 37 4 Tie rod M14 90 320 1 Sleeve 41 2 NDE or DE cover 322 2 Coupling dis...

Страница 23: ...g 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 in...

Страница 24: ...2018 01 g 24 Electric Power Generation Installation and maintenance LSA 44 3 Low Voltage Alternators 4 pole 5056 en ...

Страница 25: ...anufactured by Leroy Somer or on Leroy Somer s behalf comply with the following International Standards and Directive 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 Low Voltage Directive Nr 2014 35 UE dated 26 February 2014 Furthermore these generators d...

Страница 26: ...2018 01 g 26 Electric Power Generation Installation and maintenance LSA 44 3 Low Voltage Alternators 4 pole 5056 en ...

Страница 27: ...ient 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...

Страница 28: ...www emersonindustrial com 2018 01 g www leroy somer com epg 5056 en Linkedin com company Leroy Somer Twitter com Leroy_Somer_en Facebook com LeroySomer Nidec en YouTube com LeroySomerOfficiel ...

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