Diesel Generator sets power ratings are generally published by Diesel generator manufacturers. These ratings define the maximum allowable load conditions the Diesel generator set are expected to run. This will guarantee the Diesel generator set to perform at its peak performance during its lifetime. It is important to run the Diesel generator set under minimum load conditions, since this will allow Diesel generator to achieve normal running temperatures. So the Diesel generator will wear less.
Standby Power Rating
The max power for a Diesel generator set available during a variable electrical power sequence, under the stated operating conditions, for which a Diesel generator set is capable of delivering in the event of a utility power outage or under test conditions for up to 200 hrs of operation per year under average of 70% load. Diesel Generator set overloading isn’t permissible.
Prime Power Rating
The maximum power which a Diesel generator set is capable of delivering continuously whilst supplying a variable electrical load. Average load should be 70%. The Diesel generator can be overloaded 10% for 1 hour per 12 hrs.
Continuous (Base) Load Power Rating
The maximum power which a Diesel generator set is capable of delivering continuously whilst supplying a constant electrical load. Average load can be 100%. The Diesel generator set must not be overloaded.