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OTHER ADJUSTMENTS
Depending upon application, adjustments to
other protective and control gear may be
required. Refer to instructions provided by the
by the supplier of the generator set.
The standard MagnaMAX voltage regulator
also has many protective and control circuits.
It is imperative that the set up instructions for
any regulator supplied be followed.
MAINTENANCE
GENERAL INFORMATION
Dirt, heat, moisture, and vibration are
common enemies of a generator. Keeping the
generator clean and dry, maintaining proper
alignment of the generator and its prime
mover, and preventing overloads will result in
efficient operation and long life.
Generators that are outdoors should be
protected from the elements by suitable
houses or enclosures.
Dirt and dust will conduct electricity between
points of different electrical potential.
Moisture will aggravate the problem further.
Insulation system failure can result if
corrective action is not taken. Measuring
insulation resistance can test the condition of
the insulation system.
(See Generator Testing.).
Insulation resistance should be checked when
putting the generator into service after it has
been in storage and anytime contamination by
moisture and dirt is suspected. Normally,
moisture buildup is not a problem while the
generator is running, since heat produced
internally will tend to keep it dry but can
collect in the generator when it is shut down.
The problem will be worse in humid environ-
ments or in areas where extreme temperature
changes cause condensation (dew) to form inside
the generator. Space heaters, air filters, and
premium insulation systems, such as our VPI
process, should be considered in difficult
environments.
Accumulations of dust and dirt not only contribute
to insulation breakdown, but they can also increase
temperature by restricting the dissipation of heat.
Materials such as talc, lint, rock dust, or cement
dust may obstruct the ventilation.
The most harmful types of foreign materials include
carbon black, metallic dust and similar substances
that not only impede ventilation, but also form a
conductive film over the insulation, increasing the
possibility of insulation failure.
Machines operating in dirty places should be
disassembled and cleaned periodically.
AIR INTAKE AND EXHAUST
Check the area around the air intake and exhaust
openings to be sure they are unobstructed.
Figure 5-1
23
.
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