20
ENGLISH
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 housing must be constructed so that the engine air vent in
the housing is separate from the generator air vent especially
if the air inlet in the hous ing has to be supplied by the cooling
fan. What’s more, the generator air vent should be constructed
to prevent damp from entering by fi tting suit a ble protections.
The housing should be designed so that there is a minimum
clearance of 50mm between the generator air vent and any
fl
at
surface.
If
specifi
ed
on
order,
the
generator
can
be
fi
tted
w
ith
air
fi
lters.
i
W
A
R
NING
!
A
drop
in
cooling
air
fl
o
w
or
inadequate
protection
of
the
gen
er
a
tor
can
lead
to
damage
and
/
or
malfunction
of
the
w
indings.
The engine induces quite complex vibrations, including
overtones that, when added to the generator vibrations, can
cause substantial vibration levels damaging for the electricity
generating set operation. Therefore it is es sen tial that the
plant engineer takes all necessary measures to ensure
align ment and provide a fi rm base and supports in order to
prevent vibrations from exceeding the standard.
The alternator is dimensioned in accordance with standard
ISO
8528
-
9
.
Dual bearing generators require a rigid frame to support
the engine/gen er a tor so that a good base is established
for a precise alignment. This frame should be anchored to
the base with antivibration plugs. In order to min i mise twist
oscillations, it is advisable to use a suitably sized
fl
exible
joint.
In belt transmissions applied to dual bearing generators it is
essential that the pulley diameters and constructions permit
the load applied to the shaft to be centred with the length of
the nub and not to exceed
2
000N. For greater shaft lengths
the acceptable loads can be requested directly to the Sincro
Technical Offi ce.
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 as sem bly, providing a solid
base and implementing anti-vibration plugs to support the
engine/alternator assembly.
The terminal box contains the insulated terminals
for connecting the line and neutral and for the earth
connection.
The
neutral
is
NOT
connected
to
the
housing.
!
W
A
R
NING
!
The
generator
is
supplied
w
ithout
a
connection
to
earth
;
to
ma
k
e
this
connection
refer
to
relevant
local
regulations.
An
in
ef
fi
cient
earth
con
nec
tion
or
safet
y
cut
-
out
can
cause
in
j
ur
y
or
death.
The generator fault currents are available on request to help
the plant en gi neer in sizing the plant and its components.
!
W
A
R
NING
!
An
error
in
installation,
use,
maintenance
or
replacement
of
parts
can
cause
severe
in
j
ur
y
or
death,
not
to
mention
damage
to
the
ma
chin
er
y
.
All
w
or
k
on
electrical
and
/
or
mechanical
parts
must
be
carried
out
b
y
a
qualifi
ed
specialist.
Summary of Contents for SK 225
Page 1: ...Manuale di Uso e Manutenzione Use and Maintenance Manual SK 225 0900242 REV 00 12 2009...
Page 30: ...30 SK225 Disegno esploso Exploded view Telimontagezeichung Vue eclat e Despiece...
Page 32: ...32 12 morsetti 12 wires 12 klemmen 12 bornes 12 bornes...
Page 36: ...36...
Page 37: ...37...
Page 38: ...38...