Fischer Panda 4000s PMS FC, Руководство пользователя

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Generator Failure
26.1.11 Panda_4000s_PMS_SCB_FCB_eng.R04 - Kapitel/Chapter 7: Generator Failure Seite/Page 113
7.3 Tools and measuring instruments
In order to be able to manage disturbances while driving, following tools and measuring
instruments should belong to the equipment on board:
• Multimeter for voltage (AC), frequency and resistance
• Measuring instrument for inductance
• Measuring instrument for capacity
• Current absorbing clamps
• Thermometer (ideal is a infrared thermometer)
• Pressure device (pincer) für coolant circuit
7.4 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.
Overloading the Generator with Electric Motors
With the operation of electric motors it must be considered that these take up a multiple of their rated output as star-
ting current (six to tenfold).
If the power of the generator for the engine is not sufficient, the voltage in the generator breaks down after switching
on the engine. For special approach problems the manufacturer can give recommendations regarding the accom-
plishment of the situation (e.g. amplified capacitors, gradual start switch or extra developed starting unit for electric
motors).
The system efficiency can be improved up to 50% and the starting current can be improved up to 100% by a profes-
sional adjustment of the engines. If the inductive load (electrical motors etc.) lies over 20% of the generator rated
output a compensation is appropriate (see in addition also the writing: "Operation Instructions for Generators with
Inductive Loads").