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

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4.1.3.2 Possibility of parallel operation 16
4.1.3.3 Parallel coupling 16
4.2 MECHANICAL START-UP INSPECTION 16
4.2.0 General points 16
4.2.0.1 Alignment ; fixing ; prime mover 16
4.2.0.2 Cooling 16
4.2.0.3 Lubrication 16
4.2.1 Anti friction bearing machines start up 16
4.2.2 Not applicable 17
4.2.3 Not applicable 17
4.2.4 Vibrations 17
4.3 START-UP SEQUENCE 17
4.3.1 Static checks 17
4.3.2 Rotating checks 17
4.3.2.0 Rotor speed rate of rise (Standard unit) 17
4.3.2.1 Rotating checks not excited 17
4.3.2.2 Rotating checks at no load excited 17
4.3.2.3 Generator and site safety parameters 17
4.3.2.4 Rotating checks at full load 17
4.3.3 Generator start up check list 19
5. MAINTENANCE AND SERVICING 21
5.0 GENERAL 21
5.1 MAINTENANCE SCHEDULE 22
5.1.0 General 22
5.1.1 Stator 22
5.1.2 Rotor 22
5.1.3 Terminal box 22
5.1.4 Not applicable 23
5.1.5 Anti friction bearing 23
5.1.6 Not applicable 23
5.1.7 Rubber dampers 23
5.1.8 Not applicable 23
5.1.9 Not applicable 23
5.1.10 Protection devices 23
5.2 AIR GAP CHECK 24
5.2.1 General points 24
5.2.2 Double bearing machine 24
5.3 ANTI FRICTION-BEARINGS 24
5.3.1 General points 24
5.3.2 Cleaning bearings 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 General 27
5.5.2.2 Synthetic oils 27
5.5.2.3 Mineral oils 28
5.5.2.4 Oil filtering and pollution 28
5.6 Not applicable 28
5.7 Not applicable 28
5.8 BOLT TIGHTENING 28
5.8.0 General 28
5.8.1 Steel screw in steel tapping 28
5.8.2 Plugs 28
5.8.3 Electrical contact 29
5.8.4 Rotating diodes 29
5.8.5 Synthetic parts 29
5.9 ELECTRICAL MEASURING
INSTRUMENTS 29
5.9.1 Instruments used 29
5.10 WINDINGS INSULATION CHECK 29
5.10.0 General 29
5.10.1 Insulation measure 29
5.10.2 Polarization index 30
5.11 ROTATING DIODE BRIDGE TEST 31
5.12 CLEANING THE WINDINGS 31
5.12.0 General points 31
5.12.1 Coil-cleaning products 31
5.12.2 Cleaning operation 31
5.13 DRYING THE WINDING 32
5.13.0 General points 32
5.13.1 Drying method 32
5.13.1.1 General points 32
5.13.1.2 Drying generator in a stopped position 32
5.13.1.3 Drying generator in rotation 32
5.14 RE-VARNISHING 33
10. TYPICAL ASSEMBLIES AND DRAWINGS
34
10.1 MACHINE CUT VIEWS 34
10.1.1 Machine type A52 34
10.2 ANTI FRICTION BEARING ASSEMBLY 35
10.2.1 Machine type A52.2 35
Electric Power Generation
Installation and maintenance
5654
en - 2017.
10
/
a
LSA 5
2
.2
MHV
Industrial Range Alternators
- 4 pole
3