Preparations for use
4.2 Transportation and storage
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
29
Protection against humidity
If a dry storage area is not available, the following measures must be taken:
● Wrap the motor in humidity-absorbent material and then wrap it in film so that it is air
tight.
● Include several bags of desiccant in the seal-tight packaging. Check the desiccant and
replace as required.
● Place a humidity meter in the seal-tight packaging to indicate the level of air humidity
inside it.
● Inspect the motor on a regular basis.
Long-term storage
If you intend to place the motor in storage for longer than six months, you must check its
condition every six months.
● Check the motor for any damage.
● Carry out any necessary maintenance work.
● Document all preservation measures taken so that they can be reversed before the
machines are recommissioned.
● Make sure that storage area is air-conditioned.
Condensation water
Condensation water can collect in the machine as a result of sharp fluctuations in ambient
temperature, exposure to direct sunlight, high levels of humidity in the storage location, or
intermittent operation/variations in load during operation.
CAUTION
Damage caused by condensation water
If the stator winding is damp, its insulation resistance decreases. This results in voltage
flashovers, which can destroy the winding. Condensation can also cause the inside of the
machine to rust.
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