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3.2 Storage conditions
Generator and its accessories must be professionally stored before installation if necessary. They must be
protected from humidity, harmful environmental conditions and from other strange influences. Dew point
level must not be reached because of corrosion. If the machine is placed in a transport box, it must be
removed out of it before storage.
Storage areas must be clean, dry, closed, properly ventilated and protected from tremors. Conditions shall be
ensured by compliance with the following recommendations:
• The relative humidity should be kept below 50%
• Temperature ranges for storage should be between 5 - 20˚C
Generator is prepared for 6 months storage after dispatch from the factory to the customer. In the case of
long term storage, more than 6 months, some requirements such as protection of bearings, extended shaft
end, foots or sealed packing with dehumidifiers, etc must be taken into consideration for proper functioning
after storage. For some additional information about long term storage of entire machine or its parts
(bearings, etc) please ask Siemens Electric Machines s.r.o (see chapter 10) for manual Storage of motors and
generators.
3.2.1 If no dry storage condition is available
- air-tight film packing
- bags with hygroscopic material inside film
- humidity indicator inside film
- regular inspections
3.2.2 Rust protection
- All accessible bright arts (e.g. shaft extension, flange, feet) have a protective coat for 6 months storage
under dry condition
- for longer storage time all accessible bright parts have to be provided with a long-term anti-corrosion
coating (e.g. plastics lubricant LV 2-3 )
- regular inspections and repeated anti-corrosion coating if necessary
3.2.3 Rolling bearings
- The rotor of generators with cylindrical roller bearings or single angular-contact ball bearings has to be
axially locked to prevent bearing damage
- don´t remove shaft blocking
or remount it after no load tests
- if shaft block was removed to fit the transmission element (coupling, belt pulley), other measures for
shaft blocking have to be ensured
Product documentation 1D 3.8.en
(Chyba! Nenalezen zdroj
Fig. 5 Example for axial shaft blocking
Rev. E, 10/13
odkazů.) fitted by SIEMENS (rotor shipping brace)
page 16/42
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