Sincro SK 225, Use And Maintenance Manual

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ENGLISH
CAUTION!
if the bottom speed is set at too low a
frequency, the gen er a tor may be damaged.
On the other hand, too high a frequency
can cause voltage drops with high loads.
Connecting an external potentiometer (5kOhm, ½W)
:
remove the jumper on terminals “
EXT POT
” and wire the
potentiometer to the free terminals, how ev er make sure
that it is set at its maximum resistance. Turn trimmer “
V
”
anticlockwise to its limit. Take the generating set to its
nominal speed and adjust the potentiometer until the
required voltage is obtained.
If on load voltage
fl
uctuations are experienced adjust
potentiometer “
ST
”, which modulates the reaction time of
the regulator to external inputs, there by eliminating any
instability in the alternator-load system.
6.4.5 Wiring diagrams for different circuits
In the appendix of this manual there are diagrams for any
connections other than the factory star-series standard
(unless otherwise specifi ed on order).
6.4.6 Initial start-up
Before starting up the generating set, check that all external
con nec tions are in order and that the protections are in
place.
During the initial start-up pay particular attention for any
unusual noises that might signal an incorrect alignment
between engine and generator.
!
WARNING!
Do not touch the generator while in
operation and straight after the generating
set has stopped, since certain parts may
still be very hot.
Generators are rotating electrical machines that involve
potentially haz ard ous live or moving parts, therefore the
following is strictly prohibited:
an improper use
removal of covers and disconnection of safeties.
!
WARNING!
The lack of routine check-ups and poor
maintenance can cause severe damage to
persons and/or objects.
Due to these inherent hazards, all work of an electrical
or mechanical na ture must be carried out by qualifi ed
specialists.
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