Sincro FT Steel Serie Manual De Uso Y Mantenimiento página 20

ENGLISH
The generators are fitted with an air ventilation system,
protective guards and drip-proof covers; they are not suitable
for outdoor installation unless an adequate protective shelter
is provided. When under storage, awaiting installation or in
standby, it is advisable to use anticondensate heaters to
protect the windings from damp.
In the event of installation inside a closed housing, make sure
that the cooling air temperature for the generator does not rise
above standard.
The canopy must be constructed so that the engine air vent in
the canopy is separate from the generator air vent, especially
if the air inlet in the canopy has to be supplied by the cooling
fan. What's more, the generator air vent should be constructed
to prevent damp from entering by fitting suitable protections.
The canopy should be designed so that there is a minimum
clearance of 50mm between the generator air vent and any flat
surface.
The space in front of the air exit grill must be free.
If specified on order, the generator can be fitted with air
filters.
A drop in cooling air flow or inadequate
i
protection of the generator can lead to damage
and/or malfunction of the windings.
WARNING!
The engine induces quite complex vibrations, including
harmonics with different frequency that, when added to the
generator vibrations, can cause substantial vibration levels
dangerous for the generating set operation. Therefore it
is essential that the plant engineer takes all necessary
measures to ensure alignment and provide a firm base and
supports in order to prevent vibrations from exceeding the
standard.
The alternator is designed to work with vibration's values as
reported in ISO 8528-9.
Alignment of single bearing generators is critical because it
may give rise to vibrations along the coupling between engine
and generator. For this purpose special attention must be
given to the alternator to engine assembly, providing a solid
base and implementing anti-vibration dampers to support
the engine/alternator assembly.
20
The terminal box contains the
for connecting the line and neutral and for the earth
connection.
The neutral is NOT connected to the housing.
The generator is supplied without a
!
connection to earth; to make this connection
refer to relevant local regulations. An
WARNING!
inefficient earth connection or safety cut-
out can cause injury or death.
The generator fault currents are available on request to help
the plant engineer in sizing the plant and its components.
An error in installation, use, maintenance
!
or replacement of parts can cause severe
injury or death, not to mention damage to
WARNING!
the machinery. All work on electrical and/or
mechanical parts must be carried out by a qualified
specialist.
insulated terminals