Storage; Storage In Sheltered Environment; Storage In Not Sheltered Environment; Longer Storage - WEG G Serie Manual De Instalación, Operación Y Mantenimiento

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3.3 STORAGE

Any damage to the paint or rust protections of machined
parts should be retouched.
ATTENTION
During storage, the heating elements (if any)
must remain connected to prevent water
condensation inside the alternator.
3.3.1

Storage in sheltered environment

If the alternator is not installed immediately upon receipt, it
shall remain in the packaging and stored in a place
protected from moisture, steam, rapid changes in heat,
rodents, insects and other agents that may damage the
machine.
For the bearings not to be damaged, the alternator must
be stored at locations free of vibration.
3.3.2

Storage in not sheltered environment

The alternator should be stored in dry place, free from
floods and vibration.
Repair any damage in the package before storing the
alternator, which is needed to ensure proper storage
conditions.
Place the alternator on platforms or foundations that
ensure protection against soil moisture and prevent it from
sinking into the ground. Free movement of air underneath
the alternator should be ensured.
The cover or tarpaulin used to protect the alternator
against the weather should not be in contact with its
surfaces. To ensure the free circulation of air between the
alternator and the coverage, put wooden blocks as
spacers.
3.3.3

Longer storage

When the alternator is stored, the empty spaces inside,
bearings, connection box and windings are exposed to
air humidity, which can condense. Depending on the
type and degree of air pollution, also aggressive
substances can penetrate these voids.
As a result, after prolonged storage, the resistance of the
winding insulation can be reduced to below permissible
values. Internal components such as bearings can oxidize
and lubricity of the lubricant may be affected.
All these influences increase the risk for damage before
the operation of the alternator.
ATTENTION
To avoid losing the guarantee of the
alternator, you should ensure that all
preventive measures described in this
manual are followed and recorded.
The instructions outlined below are valid for alternators,
which are stored for long periods and / or are out of
operation for a period of two months or more.
18 l Installation, operation and maintenance manual – Synchronous Alternator – G line - Horizontal

3.3.3.1 Storage location

To ensure the best storage conditions for long periods of
the alternator, the location should comply strictly with the
criteria described below.
3.3.3.1.1 Storage in sheltered environment
 The environment must be closed and covered;

The location must be protected against moisture,
vapors, aggressive agents, rodents and insects;

There must be no the presence of corrosive gases such
as chlorine, sulfur dioxide or acids;

The environment must be free of continuous or
intermittent vibration;

The environment must have ventilation system with air
filter;

Ambient temperature between 5 °C and 60 °C, there
should not be sudden fluctuation in temperature;
 Relative air humidity < 50%;

It must have prevention against dirt and dust;

It must have fire detection system;

It must be provided with electricity to supply the heating
elements (if any).
If any of these requirements is not met in place of storage,
WEG suggests that additional protections are
incorporated in the packaging of the alternator during the
storage period, as follows:

Closed wooden box or similar with wiring that allows
the heating elements (if any) to be energized;

If there is a risk of infestation of fungus, the packaging
should be protected on-site storage, spraying it or
painting it with appropriate chemicals;

The preparation of the package must be done carefully
by a trained person.
3.3.3.1.2 Storage in not sheltered environment
ATTENTION
It is not recommended to store the alternator
in a not sheltered location.
If the storage at not sheltered environment cannot be
avoided, the alternator must be packed in specific
package for this condition, as follows:

For storage at not sheltered environment, apart from
the package recommended for internal storage, the
packaging should be covered with a protection against
dust, moisture and other foreign materials, using for this
purpose a tarpaulin or sturdy plastic;

Position the package on platforms or foundations that
ensure protection against soil moisture, prevent it from
sinking into the ground;
 Once the alternator is covered, a shelter should be
erected to protect it from direct rain, snow or excessive
heat from the sun.
ATTENTION
If the alternator is kept in storage for
extended periods, it is recommended to
regularly inspect it as specified in item
3.3.3.9 of this manual.
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