ABB AMA Series Manual page 13

Manual for Induction Motors and Generators
4 -
Chapter 6 - Operation
6.1 General ..................................................................................................................... 53
6.2 Normal operating conditions.................................................................................... 53
6.3 Number of starts....................................................................................................... 53
6.4 Supervision............................................................................................................... 54
6.4.1 Bearings................................................................................................... 54
6.4.2 Vibrations................................................................................................ 54
6.4.3 Temperatures........................................................................................... 54
6.4.4 Heat exchanger........................................................................................ 55
6.4.5 Slip ring unit............................................................................................ 55
6.5 Follow-up ................................................................................................................. 55
6.6 Shut down................................................................................................................. 55
Chapter 7 - Maintenance
7.1 Preventive maintenance ........................................................................................... 56
7.2 Safety precautions .................................................................................................... 56
7.3 Maintenance program............................................................................................... 57
7.3.1 Recommended maintenance program ..................................................... 59
7.3.1.1
7.3.1.2
7.3.1.3
7.3.1.4
7.3.1.5
7.3.1.6
7.3.1.7
7.4 Maintenance of general constructions...................................................................... 64
7.4.1 The tightness of fastenings...................................................................... 64
7.4.2 Vibration and noise ................................................................................. 65
7.4.3 Vibrations................................................................................................ 66
7.4.3.1
7.4.3.2
7.4.3.3
7.5 Maintenance of bearings and lubrication system ..................................................... 68
7.5.1 Sleeve bearings........................................................................................ 69
7.5.1.1
7.5.1.2
7.5.2 Lubrication of sleeve bearings ................................................................ 69
7.5.2.1
7.5.2.2
7.5.2.3
7.5.2.4
7.5.2.5
7.5.3 Rolling bearings ...................................................................................... 72
7.5.3.1
7.5.3.2
7.5.3.3
7.5.3.4
7.5.3.5
7.5.3.6
General construction......................................................... 60
Main supply connection ................................................... 60
Stator and rotor ................................................................. 61
Auxiliaries ........................................................................ 61
Slip ring unit ..................................................................... 62
Lubrication system and bearings ...................................... 62
Cooling system ................................................................. 63
Measurement procedures and operational conditions ...... 66
Classification according to support flexibility ................. 67
Evaluation......................................................................... 67
Oil level ............................................................................ 69
Bearing temperature ......................................................... 69
Lubrication oil temperature .............................................. 69
Control of the lubricant .................................................... 70
Recommended control values for the lubricating oil ....... 70
Oil qualities ...................................................................... 70
Oil change schedule for mineral oils ................................ 71
Bearing construction......................................................... 72
Bearing plate..................................................................... 72
Re-greasing intervals ........................................................ 72
Re-greasing....................................................................... 73
Bearing grease .................................................................. 74
Bearing maintenance ........................................................ 75
3BFP 000 050 R0101 REV E