LSA 52.2 MHV
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Industrial Range Alternators - 4 pole
Installation and maintenance
Страница 1: ...LSA 52 2 MHV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Industrial Range Alternators 4 pole Installation and maintenance...
Страница 2: ...3 1 TRANSPORT AND STORAGE 10 3 1 1 Transport 10 3 1 2 Storage warehouse 10 3 1 3 Maritime packing 10 3 1 4 Unpacking and installation 10 3 1 5 Storage measures of antifriction bearings10 3 1 6 Not ap...
Страница 3: ...arings from old grease 24 5 3 3 Cleaning bearings assembly area 25 5 3 4 Bearing removal 25 5 3 5 Bearing re assembly 26 5 4 Not applicable 26 5 5 LUBRICANTS 26 5 5 1 Greases 26 5 5 2 Oils 27 5 5 2 1...
Страница 4: ...ics use of lifting devices Local procedures must be scrupulously respected Any product sealing compound cleaning product used during any maintenance or servicing must be in accordance with local regul...
Страница 5: ...3 The Rotating diodes bridge rotating part item 3 rectifies the three phases current in DC current which supplies the Revolving field rotating part item 4 The revolving field rotating part item 4 exci...
Страница 6: ...175 C 170 C 180 C 175 C To improve the machine protection we recommend to set the alarm point following effective site conditions Alarm temperature Highest recorded temp 10 K Trip temperature Alarm te...
Страница 7: ...ed copper wires class F insulation or H depending on the customer s request or size of the machine 2 2 3 Fan machines IC 0 A1 The synchronous machine is characterized by a self ventilation system A ce...
Страница 8: ...chapter 3 4 3 2 3 1 Automatic voltage regulator AVR When the automatic voltage regulator is located in the terminal box it is fitted on a separate plate insulated from vibration by means of dampers Th...
Страница 9: ...s based on the analysis of the vibration signal are able to monitor bearings behavior 2 6 Not applicable 2 7 Not applicable 2 8 Not applicable 2 9 Not applicable 2 10 Not applicable 2 11 Not applicabl...
Страница 10: ...ER OF ITS LONG STORAGE GUARANTEE 3 1 4 Unpacking and installation DANGER THE DEDICATED LIFTING HOOKS MUST BE USED TO LIFT THE MACHINE WITH SLINGS ONE HOOK AT EACH CORNER OF THE MACHINE Rotors of machi...
Страница 11: ...perature The machine must be aligned according to the Leroy Somer standard and adhere to the manufacturer s alignment standard for the drive machine When heating the machine has its shaft line which g...
Страница 12: ...e to check the alignment with the coupling installed Equipment required Two rigid brackets The rigidity of the two brackets is very important Two micrometers Implementation During the measures both sh...
Страница 13: ...mm In the plane C2 the axis B is further to the left than A 0 70 1 64 2 0 47 mm The representation of the shafts is as follows A B C1 C2 0 09 0 47 Regarding the horizontal plane the angular error is...
Страница 14: ...AUTION A VOLTAGE TRANSFORMER MUST NEVER BE SHUNTED CAUTION THE INSTALLED POWER CABLES MUST BE FIXED AND SUPPORTED IN SUCH A WAY AS TO BE ABLE TO WITHSTAND THE VIBRATION LEVEL REACHED BY THE GENERATOR...
Страница 15: ...erminal box must meet the electrical insulating distances This applies to power cables and lugs and to added transformers etc Nominal Voltage 500 V 1 KV 2 KV 3 KV Phase Phase in the air mm 25 30 40 60...
Страница 16: ...ng values must not be overpass Max frequency shift 0 1 Hz Max phase offset 10 electrical angle Max voltage phase neutral between machines at phase offset 0 5 of the nominal voltage In case of wrong sy...
Страница 17: ...nual mode Voltage adjustment check the excitation current value refer to Section 4 for the AVR manual and to Section 2 for the generator test report In AVR automatic mode Voltage adjustments Voltage r...
Страница 18: ...e the vibrations Check that the vibration level is in accordance with the generator duty as per chapter 2 1 3 4 Electric Power Generation Installation and maintenance 5654 en 2017 10 a LSA 52 2 MHV In...
Страница 19: ...power cables connections following phase order refer to chapter 3 4 1 ______________________ Terminal box connections ________________________________________ AVR detection voltage ___________________...
Страница 20: ...eparate excitation mode _________________________ Negative sequence relay _____________________________________________________________ Over speed _____________________________________________________...
Страница 21: ...spare part make sure that it is in good condition For any electrical work use electrical schematics for assistance The whole machine must be kept clean CAUTION ALL THE CLEANING PERIODS INDICATED IN T...
Страница 22: ...thout gen stop Refer to 2 1 3 2 Insulation 8000 1 Refer to 5 10 4hrs Polarisation index 8000 1 Refer to 5 10 4 Bolts tightening 8000 1 Refer to 5 8 2 hrs Winding visual inspection 8000 1 Refer to 5 10...
Страница 23: ...24 Daily operation without gen stop Refer to 2 5 1 5 1 6 Not applicable 5 1 7 Rubber dampers Rubber dampers 8000 Refer 2 3 1 5 1 8 Not applicable 5 1 9 Not applicable 5 1 10 Protection devices Protect...
Страница 24: ...Few international studies report that more than 80 of the anti friction bearing installed worldwide for any duty are prematurely damaged because of lubrication trouble To preserve your machine we reco...
Страница 25: ...Periodically clean the labyrinth seals outside face Remove the excess of grease which may appears onto the shaft Remove the excess of dry old grease from the bearing exhaust channel use a clean blade...
Страница 26: ...IL POLYREX EM polyurea base Recommendation for a substitution grease choice Mineral oil or PAO SHC Base soap grade NLGI 2 Lithium complex base Lithium base accepted Base oil viscosity at 40 C 100 to 2...
Страница 27: ...hort time If synthetic oil has to be used during the first 2000 hours of use the lubricant should be checked at short intervals Synthetic oils group concerns Synthetic hydrocarbons SHC Poly Alpha Olef...
Страница 28: ...following ISO 4406 18 16 13 following NAS 1638 class 9 Filtering level to ensure oil circulation bearing following ISO 16889 100 25 c filtering 25 5 6 Not applicable 5 7 Not applicable 5 8 BOLT TIGHT...
Страница 29: ...The identification of the equipment polarity may differ from one ammeter to another 5 10 WINDINGS INSULATION CHECK 5 10 0 General The insulation resistance enables the status of the machine insulating...
Страница 30: ...ng to be verified and gives an indication of the pollution of the winding A poor polarization index may be corrected by a cleaning and drying of the winding The following measurements can be taken at...
Страница 31: ...ject to hydrolysis in damp atmospheres are prohibited They quickly become acidified producing corrosive and conductive hydrochloric acid CAUTION DO NOT USE TRICHLORETHYLENE PERCHLORETHYLENE OR TRICHLO...
Страница 32: ...at its nominal speed Several thermometers must be positioned onto the winding and the temperature must not exceed 75 C 167 F If one of the thermometers exceeds this value immediately reduce the heati...
Страница 33: ...ABSOLUTLY NECESSARY A RE VARNISHING OPERATION DONE ON A WINDING STILL DIRTY OR NOT PERFECTLY DRY MAY CONDUCE TO A DEFINITIVE LOSS OF INSULATION Electric Power Generation Installation and maintenance 5...
Страница 34: ...Stator winding 8 Stator ribs 9 Stator lamination 10 Polar wheel 11 Balancing disc 12 Exciter field 13 Exciter armature 14 Non drive end shield 15 Bearing non drive end 16 Rotating resistances 17 Rota...
Страница 35: ...4 Roller bearinG Bearing assembly Marine Drive end Non drive end 1 End cover 1 End shield 2 End cover fixing screw 2 End cover 3 Ball bearing 3 End cover fixing screw 4 End shield 4 Bearing pre load s...
Страница 36: ...Electric Power Generation Installation and maintenance 5654 en 2017 10 a LSA 52 2 MHV Industrial Range Alternators 4 pole 36...
Страница 37: ...Electric Power Generation Installation and maintenance 5654 en 2017 10 a LSA 52 2 MHV Industrial Range Alternators 4 pole 37...
Страница 38: ...ctured 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 en...
Страница 39: ...nd 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 opera...
Страница 40: ...www leroy somer com epg 2017 10 a Linkedin com company Leroy Somer Twitter com Leroy_Somer_en Facebook com LeroySomer Nidec en YouTube com LeroySomerOfficiel 5654 en...
