Manual for Induction Motors and Generators
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3
3BFP 000 050 R0101 REV E
4.3.2
Safety ....................................................................................................... 39
4.3.3
Insulation resistance measurements......................................................... 39
4.3.4
Main terminal box options....................................................................... 40
4.3.4.1
Delivery without main terminal box ................................. 40
4.3.5
Insulation distances of main power connections ..................................... 40
4.3.6
Main power cables ................................................................................... 40
4.3.7
Secondary cables for slip ring connections.............................................. 41
4.3.8
Auxiliary terminal box............................................................................. 41
4.3.8.1
Connection of auxiliaries and instruments........................ 42
4.3.8.2
Connection of external blower motor ............................... 42
4.3.9
Earth connections..................................................................................... 42
4.3.10
Requirements for machines fed by frequency converters........................ 43
4.3.10.1
Main cable......................................................................... 43
4.3.10.2
Earthing of main cable ...................................................... 43
4.3.10.3
Auxiliary cables ................................................................ 43
Chapter 5 - Commissioning and Start-up
5.1
General...................................................................................................................... 44
5.2
Check of mechanical installation .............................................................................. 44
5.3
Insulation resistance measurements.......................................................................... 44
5.4
Check of electrical installation ................................................................................. 44
5.5
Control and protection equipment ............................................................................ 45
5.5.1
General..................................................................................................... 45
5.5.2
Stator winding temperature...................................................................... 45
5.5.2.1
General .............................................................................. 45
5.5.2.2
Resistance temperature detectors ...................................... 46
5.5.2.3
Thermistors ....................................................................... 46
5.5.3
Bearing temperature control .................................................................... 46
5.5.3.1
General .............................................................................. 46
5.5.3.2
Resistance temperature detectors ...................................... 46
5.5.3.3
Thermistors ....................................................................... 46
5.5.4
Protection equipment ............................................................................... 46
5.6
First test start............................................................................................................. 47
5.6.1
General..................................................................................................... 47
5.6.2
Precautions before first test start.............................................................. 47
5.6.3
Starting..................................................................................................... 48
5.6.3.1
Direction of rotation.......................................................... 48
5.6.3.2
Starting of machines with slip rings.................................. 48
5.6.3.3
Starting of Ex p machines ................................................. 48
5.7
Running the machine the first time........................................................................... 49
5.7.1
Supervision during the first run ............................................................... 49
5.7.2
Checks during running of the machine .................................................... 49
5.7.3
Bearings ................................................................................................... 49
5.7.3.1
Machines with rolling bearings......................................... 50
5.7.3.2
Machines with sleeve bearings ......................................... 51
5.7.4
Vibrations................................................................................................. 51
5.7.5
Temperature levels................................................................................... 51
5.7.6
Heat exchangers....................................................................................... 52
5.7.7
Slip rings .................................................................................................. 52
5.8
Shut down ................................................................................................................. 52
