Electric Power Generation
Installation and maintenance
LSA 52.3 / LSA 53.2 / LSA 54.2
Industrial Range Alternators
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TABLE OF CONTENTS
1. GENERAL INFORMATION 4
1.1 INTRODUCTION 4
1.1.0 General information 4
1.1.1 Safety Notes 4
1.1.2 Conditions of use 4
1.1.2.1 Generalities 4
1.1.2.2 Vibration analysis 4
1.1.2.3 Short-circuit capacity 4
1.1.2.4 Object projection risk 5
1.2 GENERAL DESCRIPTION 5
1.2.1 Generator (arep) 5
1.2.2 Excitation system 5
2. DESCRIPTION OF SUB-ASSEMBLIES 5
2.1 - STATOR 5
2.1.1 Stator of the electric machine 5
2.1.2 Excitation field winding 6
2.1.3 Stator protection 6
2.1.3.1 Heating resistance 6
2.1.3.2 Stator winding temperature sensor 6
2.1.3.3 Stator air temperature probe 6
2.1.3.4 Bearing vibration sensor 6
2.2 ROTOR 7
2.2.1 Pole wheel (laminated) 7
2.2.2 Excitation armature 7
2.2.3 Fan (machines: IC 0 A1) 7
2.2.4 Rotating diode bridge 7
2.2.5 Balancing (single fan machine) 7
2.3 TERMINAL BOX 8
2.3.0 Description (on damper buffers) 8
2.3.1 Automatic voltage regulator (AVR) 8
2.4 NAMEPLATES 8
2.4.1. Main nameplate 8
2.4.2. Lubrication nameplate 8
2.4.3. Rotation direction nameplate 8
2.5 ROLLER-BEARING 8
2.5.0 Description of roller-bearings 8
2.5.1 Bearing protection devices 8
2.10 AIR FILTERS 9
2.12 TRANSPORT LOCKING SYSTEM 9
2.12.0 General information 9
2.12.1 Machines with bearings 9
2.12.1.0 General information 9
2.12.1.1 Double roller bearing machine 9
2.12.1.2 Single roller bearing machine 9
3. INSTALLATION 10
3.1 TRANSPORT AND STORAGE 10
3.1.1 Transportation 10
3.1.2 Warehouse Storage 10
3.1.3 Storage in maritime packaging 10
3.1.4 Unpacking and Installation 10
3.1.5 Roller bearing storage measures 10
3.1.6 Uncovered machinery storage measures 10
3.2 INSTALLATION OF THE MACHINE 11
3.2.1 Coupling Assembly (double-bearing
machine only) 11
3.2.2 Stator attaching 11
3.3 MACHINE ALIGNMENT 11
3.3.1 General information concerning the
alignment 11
3.3.1.1 General information 11
3.3.1.2 Shaft elevation caused by heat rise 11
3.3.1.3 Elevation of the shaft of a roller bearing
machine 11
3.3.1.4 Inspection of the generator before
alignment 11
3.3.1.5 Alignment procedure with the “double
concentricity” method 11
3.3.2 Alignment of a double-flanged bearing
machine 12
3.3.2.1 Machines without axial play (standard) 12
3.4 ELECTRICAL CONNECTIONS 13
3.4.0. General information 13
3.4.1 Phase Order 13
3.4.1.1 Standard units; IEC 34-8 13
3.4.1.2 Upon request; NEMA 14
3.4.2 Insulation distances 14
3.4.3 Added products in the terminal box 14
4. START-UP 15
4.1 ELECTRICAL START-UP INSPECTION 15
4.1.0 General information 15
4.1.1 Insulation of the winding 15
4.1.2 Electrical connections 15
4.1.3 Parallel operation 15
4.1.3.1 Definition of parallel operation 15
4.1.3.2 Possibility of parallel operation 15
4.1.3.3 Parallel coupling 15
4.2 MECHANICAL START-UP INSPECTION 15
4.2.0 General information 15
4.2.0.1 Alignment; attachment; drive motor 15
4.2.0.2 Cooling 15
4.2.0.3 Lubrication 15
4.2.1 Starting roller-bearing machines 15
4.2.2 Terminal Box start-up 16
4.2.3 Vibrations 16
4.3 START-UP SEQUENCES 16
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