Manual for Induction Motors and Generators
20 - Installation and Alignment
3BFP 000 050 R0101 REV E
3.2.2 Forces to the foundation
The foundation and the mounting bolts must be dimensioned to withstand a sudden mechanical
torque, which occurs every time the machine is started, or at short circuit. The short circuit force
is a gradually damped sine wave that changes direction. The magnitude of these forces is
mentioned on the dimensional drawing of the machine.
***Following chapter for mounting type: Vertical
3.2.3 Flanges for vertically mounted machines
Vertical flange mounted machines are equipped with a mounting flange according to IEC-
standard publication 60072. The flange of the machine should always be mounted to an opposite
flange on the foundation.
A mounting adapter is recommended to enable an easy coupling connection and inspection
during operation.
3.3 Machine preparations before installation
Prepare the machine for installation as follows:
• Measure the insulation resistance of the winding before any other preparations are done as
described in Chapter 3.3.1 Insulation resistance measurements
• Remove the transport locking device when applicable. Store it for future use. See Chapter
3.3.2 Disassembly of the transport locking device for further instructions
• Verify that the grease available is according to the specification on the bearing plate, see
Chapter 2.1.2 Bearing plate. Additional recommended greases can be found in Chapter
7.5.3.5 Bearing grease
***Following bullet and note for bearing type: Sleeve bearing
• Fill the sleeve bearings with an appropriate oil. For suitable oils, see Chapter 7.5.2.4 Oil
qualities
NOTE: Sleeve bearings are always delivered without oil!
• Remove the anti-corrosive coating on the shaft extension, and machine feet with white
spirit
• Install the coupling half as described in Chapter 3.3.4 Assembly of the coupling half
• Check that the drain plugs at the lowest part of both ends of the machine are in open
position, see Chapter 3.3.6 Drain plugs.
3.3.1 Insulation resistance measurements
Before a machine is started up for the first time, after a long period of standstill or within the
scope of general maintenance work, the insulation resistance of the machine must be measured.
This includes measuring the stature winding and all auxiliary devices. For machines equipped
with slip ring, the measuring also includes the rotor winding, see Chapter 7.6.4 Insulation
resistance test.
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