Nidec LEROY-SOMER LSA 52.2 MHV Installation And Maintenance Manual
Nidec LEROY-SOMER LSA 52.2 MHV Installation And Maintenance Manual

Nidec LEROY-SOMER LSA 52.2 MHV Installation And Maintenance Manual

Industrial range alternators - 4 pole
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Industrial Range Alternators - 4 pole
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Installation and maintenance
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LSA 52.2 MHV
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Summary of Contents for Nidec LEROY-SOMER LSA 52.2 MHV

  • Page 1 11 12 13 8 9 10 LSA 52.2 MHV Industrial Range Alternators - 4 pole Installation and maintenance...
  • Page 2: Table Of Contents

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole TABLE OF CONTENTS 2.12 TRANSPORT LOCKING SYSTEM 1. GENERAL INFORMATION 1.1 INTRODUCTION 3. INSTALLATION 1.1.0 General points 3.1 TRANSPORT AND STORAGE 1.1.1 Safety notes 3.1.1 Transport 1.1.2 Conditions of use...
  • Page 3 Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.7 Not applicable 4.1.3.2 Possibility of parallel operation 4.1.3.3 Parallel coupling 5.8 BOLT TIGHTENING 4.2 MECHANICAL START-UP INSPECTION 16 5.8.0 General 4.2.0 General points 5.8.1 Steel screw in steel tapping 5.8.2 Plugs...
  • Page 4: General Information

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole The main data of this machine are summarized in "Section 1. GENERAL INFORMATION 1" of this manual Any operating condition other than those specified by the original tender must receive a Leroy Somer agreement 1.1 INTRODUCTION Any modification of the machine structure must receive a...
  • Page 5: General Description

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 1.2 GENERAL DESCRIPTION 1.2.1 Generator (arep) The synchronous generator is an alternating-current machine, without ring or brush. The machine is cooled by the flow of air through the machine.
  • Page 6: Description Of Sub-Assemblies

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 2.1.3.2 Stator winding temperature sensor 2. DESCRIPTION OF SUB-ASSEMBLIES The temperature sensors are located in the zone assumed to be the hottest part of the machine. The sensors are connected to a terminal box.
  • Page 7: Bearing Vibration Sensor

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 2.2.3 Fan (machines: IC 0 A1) 2.1.3.4 Bearing vibration sensor The synchronous machine is characterized by a self- This chapter concerns the setting of seismic probes. For ventilation system.
  • Page 8: Balancing

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole CAUTION : 2.4 NAMEPLATES THE ROTATING DIODE FASTENING SCREWS MUST BE TIGHTENED USING A TORQUE WRENCH CALIBRATED TO THE RECOMMENDED TORQUE. 2.4.1.
  • Page 9: Anti Friction Bearing

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole CAUTION: THE ROTOR LOCKING SYTEM MUST REMAIN IN 2.5 ANTI FRICTION BEARING PLACE IF THE ALTERNATOR IS SUBJECT TO BE TRANSPORTED.
  • Page 10: Installation

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 3.1.4 Unpacking and installation 3. INSTALLATION DANGER : 3.1 TRANSPORT AND STORAGE THE DEDICATED LIFTING HOOKS MUST BE USED TO LIFT THE MACHINE WITH SLINGS (ONE HOOK AT EACH CORNER OF THE MACHINE) 3.1.1 Transport...
  • Page 11: Installation Of The Machine

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 3.2 INSTALLATION OF THE MACHINE 3.3 MACHINE ALIGNMENT 3.2.1 Fitting the coupling (double-bearing machine 3.3.1 Alignment general points only) 3.3.1.1 General points The coupling must be balanced separately before The alignment aims to obtain the driving shaft and the assembly on the machine shaft.
  • Page 12: Shaft Elevation Caused By Thermal Elevation

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 3.3.1.2 Shaft elevation caused by Thermal elevation ∆ ∆T H (mm) = λ (°K (°K) H(m) = Height of the machine axis ∆T= frame temperature elevation = 30°C λ...
  • Page 13: Two Bearings Machine Alignment (Flanged)

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole MEASUREMENTS 3.3.2 Two bearings machine alignment (flanged) + 1.34 3.3.2.1 Machines without axial end play (standard) The alignment must take the tolerances of the coupling into + 0.90 account.
  • Page 14: Electrical Connections

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 3.4.1 Phase-sequence 3.4 ELECTRICAL CONNECTIONS 3.4.1.1 Standard units ; IEC 34-8 3.4.0. General points Except by special request of the customer, the phase- sequence is carried out using the IEC 34-8 standard.
  • Page 15: On Request ; Nema

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 3.4.1.2 On request ; NEMA 3.4.2 Insulating distances An arrow located on the front bearing indicates the Products not delivered by Leroy Somer and then installed direction of rotation.
  • Page 16: Start-Up

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 4.1.3.3 Parallel coupling 4. START-UP CAUTION: A WRONG SYNCHRONIZATION CAN LEAD TO MAIN 4.1 ELECTRICAL START-UP INSPECTION DAMAGES (HIGH MECHANICAL OVERTORQUE AND OVER CURRENT) 4.1.0 General points During synchronization the following values must not be...
  • Page 17: Not Applicable

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 4.2.2 Not applicable 4.3 START-UP SEQUENCE 4.2.3 Not applicable The generator start up (commissioning) must follow the following sequences: 4.2.4 Vibrations The vibration measurement must be taken on each bearing 4.3.1 Static checks in the three directions.
  • Page 18 Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole At the nominal speed (full load) measure the vibrations. Check that the vibration level is in accordance with the generator duty (as per chapter 2.1.3.4).
  • Page 19: Generator Start Up Check List

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole Generator start up check list 4.3.3 TYPE SERIAL N° Voltage Frequency Speed Output Power Power Factor STATIC CHECKS Mechanical checks •...
  • Page 20 Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole ROTATING CHECKS WITH EXCITATION - AT NO LOAD CONDITIONS • Verification of the bearings temperature ( °C ______________ refer to chapter 2.5.1 or 2.6.2 •...
  • Page 21: Maintenance And Servicing

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5. MAINTENANCE AND SERVICING 5.0 GENERAL DANGER : BEFORE ANY WORK ON THE GENERATOR, MAKE SURE THAT THE START-UP CANNOT BE ACTIVATED BY ANY MANUAL OR AUTOMATIC SIGNAL.
  • Page 22: Maintenance Schedule

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.1 MAINTENANCE SCHEDULE 5.1.0 General The purpose of the general maintenance schedule below is to help establish the maintenance schedule particular to the installation.
  • Page 23: Not Applicable

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.1.4 Not applicable 5.1.5 Anti friction bearing Following technical specification in "Section 1" Re greasing See lub plate; Or every 6 months whichever come first Bearing temperature Daily operation, (without gen stop)Refer to 2.5.1 5.1.6 Not applicable...
  • Page 24: Air Gap Check

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.2 AIR GAP CHECK 5.3 ANTI FRICTION-BEARINGS 5.2.1 General points 5.3.1 General points The air gap measurement is not always possible because of a lack of access.
  • Page 25: Cleaning Bearings Assembly Area

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole DANGER: THE PROHIBITED SOLVENTS ARE: CHLORINATED SOLVENT (TRICHLORETHYLENE,TRICHLOROETHANE) WHICH BECOMES ACID FUEL-OIL (EVAPORATES TOO SLOWLY) GASOLINE CONTAINING LEAD BENZINE (TOXIC) After cleaning ensure that the bearing becomes perfectly dry.
  • Page 26: Bearing Re-Assembly

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.3.5 Bearing re-assembly 5.5 LUBRICANTS A bearing can be refitted if it is known to be in perfect condition. As far as possible we recommend to use a brand 5.5.1 Greases new bearing Recommended lubricant:...
  • Page 27: Oils

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.5.2.2 Synthetic oils 5.5.2 Oils Since the synthetic lubricants are not standardized, no 5.5.2.1 General guarantee can be given regarding their chemical and We do not have any special recommendation regarding mechanical behavior.
  • Page 28: Mineral Oils

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.6 Not applicable 5.5.2.3 Mineral oils Mineral oils containing special additives (diesel engine oils) 5.7 Not applicable must have a Total Base Number (marked TBN or BN) strictly below 40 mgKOH/g 5.5.2.4 Oil filtering and pollution 5.8 BOLT TIGHTENING...
  • Page 29: Electrical Contact

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.9 ELECTRICAL MEASURING 5.8.3 Electrical contact INSTRUMENTS If no torque value is specified into the concerned chapter the following values can be used for brass (or copper alloy) clean and dry threads.
  • Page 30: Polarization Index

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole Test voltage Criteria 5.10.2 Polarization index (VDC) (MΩ ; 40°C) The polarization index enables the status of the machine Stator: U ≤ 3 kV insulating to be verified and gives an indication of the pollution of the winding.
  • Page 31: Rotating Diode Bridge Test

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole Avoid mixtures sold under various trademarks which often contain white spirit (which evaporates too slowly) or 5.11 ROTATING DIODE BRIDGE TEST chlorinated products (which are likely to become acidified).
  • Page 32: Drying The Winding

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.13.1.3 Drying generator in rotation 5.13 DRYING THE WINDING CAUTION 5.13.0 General points THIS OPERATION MUST BE DONE BY A QUALIFIED All electric machines must be stored under dry conditions.
  • Page 33: Re-Varnishing

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 5.14 RE-VARNISHING CAUTION: RE VARNISHING MUST ONLY BE CONSIDERED IF ABSOLUTLY NECESSARY. A RE VARNISHING OPERATION DONE ON A WINDING STILL DIRTY OR NOT PERFECTLY DRY MAY CONDUCE TO A DEFINITIVE LOSS OF INSULATION...
  • Page 34: Typical Assemblies And Drawings

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 10. TYPICAL ASSEMBLIES AND DRAWINGS 10.1 MACHINE CUT VIEWS 10.1.1 Machine type Rotor Polar wheel Bearing (drive end) Balancing disc Fan hub Exciter field Drive end shield...
  • Page 35: Anti Friction Bearing Assembly

    Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole 10.2 ANTI FRICTION BEARING ASSEMBLY 10.2.1 Machine type A52.2 Bearing assembly "Power plant" Drive end Non drive end End cover End shield End cover fixing screw End cover...
  • Page 36 Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole...
  • Page 37 Installation and maintenance Electric Power Generation 5654 en - 2017.10 / LSA 52.2 MHV Industrial Range Alternators - 4 pole...
  • Page 38 Declaration of EC compliance and incorporation This Declaration applies to the generators designed to be incorporated into machines complying with the Machinery Directive Nr 2006/42/EC dated 17 May 2006. MOTEURS LEROY-SOMER MLS HOLICE STLO.SRO MOTEURS LEROY-SOMER DIVISION LEROY-SOMER Boulevard Marcellin Leroy SLADKOVSKEHO 43 1, rue de la Burelle STREET EMERSON...
  • Page 39 Service & Support Our 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.
  • Page 40 Linkedin.com/company/Leroy-Somer Twitter.com/Leroy_Somer_en Facebook.com/LeroySomer.Nidec.en YouTube.com/LeroySomerOfficiel 5654 en - 2017.10 / a...

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