CORE ASSEM. 9M8039 - Caterpillar

The ratings must be reduced in order to accommodate changes in the altitude. The ratings must be reduced according to the data for derating that is obtained from the test specification for the engine.All of the ratings that are defined have a manufacturing tolerance of 3 percent.Load Factor - The sum of the loads divided by the number of hours of operation. Idle time and down time are not part of the calculation.Power Interruption - Unexpected failure of the utility power supply.Operating Cycle - Except when the operating cycle is specified differently, an operating cycle for calculating load factors and peak load limits is not to exceed 24 hours. The operating cycle does not include the time when the engine is not operating.Use the following guidelines in order to determine the applicable engine rating.
Operating an engine at a greater power output than the engine is rated for will reduce the service life of the engine before overhaul.
Continuous - This rating allows a constant load or a load that varies for an unlimited number of hours per year. The normal load factor is up to 100 percent for an unlimited number of hours per year. The following applications are suggested: base load, utility, cogeneration and parallel operation.International Power Projects (IPP) - Output available with non-varying load for an unlimited time. Average power output is 70-100% of the continuous power rating. Typical peak demand is 100% of continuous rated ekW with 5% overload capability for emergency use for a maximum of 1 hour in 12. Overload operation cannot exceed 500 hours per year.Prime - This rating allows a load that varies for an unlimited number of hours per year. The normal load factor is up to 80 percent for an unlimited number of hours per year. A 100 percent load is only allowed