Generator Failure
8.7.08
Panda PMS 8.000 NE - 42 NE Manual.R04 - Kapitel B: Generator Failure Seite 49
B.3.4 Consequences of a continual overloading of the Actuator
If the generator is overloaded the voltage falls on account of a not adequate motor power under
the nominal value. The actuator stays at the upper keystroke and tries to rev up the diesel engine.
An internal regulation limits the current to the actuator, nevertheless a longer overload can
damage the winding of the actuator. (short of the winding). The motor gets not strictly inoperative
but it can happen that the cranking torque of the actuator is getting weak. This has the consecu-
ence that the rev spindle can not be turned to all positions faultless. Therefore the voltage of the
generator is regulated not good or sometimes not at all.
If the generator is overloaded, the voltage falls under the nominal value due to insufficient engine
power. The actuator is already at the upperst speed limit and still tries to rise the rev. speed of the
engine. There is an internal control which limits the actuator current, but an overloading over a
longer period of time can still damage the winding of the actuator.
This will not effect the operation ability of the engine, but it can happen that the cranking torque of
the actuator is getting weak. This has the consequence that the rev. spindle can not be turned to
all positions correctly. Therefore the voltage regulatiron of the generator is very bad or the gene-
rator is temporarily not beeing regulated at all.
If you should notice that the actuator for the spindle sometimes does not run smoothly, then a
check must be made to determine whether the generator has been effectively overloaded for
periods, therefore causing damage to the internal winding of the actuator. The actuator must then
be exchanged.
The electrical fuses on the circuit board must be checked, if the actuator for controlling the speed
does not turn.
Change this fuse
(1,6 A slow to blow)
Fig. B.3.4-1: Fuse for the actuator at the remote control panel
True, overloading cannot damage the actual generator, since the windings are safe from overloa-
ding and short circuiting, but damage is always possible to peripheral consumers. This is especi-
ally the case for connected consumers, which can easily be damaged because of current that is
too low.
