Generator Failure
15.2.13 Kapitel/Chapter 8: Generator Failure - Seite/Page 143
8.4 Overloading the generator
Please ensure that the genset is not overloaded. Overloading occurs when the electrical load (demand) induces a
load torque in the generator which is higher than that which the diesel drive motor can provide. Overloading causes
the engine to run rough, burn oil, creates excessive exhaust (environmentally unfriendly) and even to stall. Extra
caution should be practised with multi-power units (single and 3-phase current generation) to avoid overloading the
diesel drive engine.
The generator should only be loaded at the peak rated power for short periods only! A high peak current is required
to start many electrical devices, especially electric motors and compressors (from a still stand state).
In order to prolong the genset´s life expectancy, the nominal electrical demand on the system should not be more
than 70% of the rated genset peak load.
Keep PEAK LOADING demand in mind when switching on electrical devices (esp. fridge compressors, electric
motors, battery chargers, kettles, etc.) which are fed by the generator. Careful „powering up“ (gradual loading) of the
electrical demand on the generator will help prolong the life of your genset! The genset can be run for several hours
at partial load (i.e. 2/3 of rated power), however it is not advised that it is run for more than 2-3 hours at full load. The
Panda is designed so as not to overheat even under extreme conditions. Note: The exhaust gas will become sooty
during peak-load operation.
Effects of Short Circuiting and Overloading on the Generator
The generator cannot be damaged by short circuiting or overloading. Short circuiting and overloading suppress the
magnetic excitation of the generator, thus, no current is generated and the voltage will collapse. This condition is
immediately offset once the short-circuit has been eliminated and/or the electrical overload removed.
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