Parameter Range Default Notes
If the system load is lower than this set point, the power management system deloads the
gensets to the Minimum limit so that the shaft generator can run as close to this set point as
possible.
If the system load is higher than this set point, the power management system transfers the
load to the gensets so that the shaft generator runs at the Set point.
If the gensets are running at the Maximum limit, the power management system increases the
load on the shaft generator.
Configure the following parameter under Configure > Parameters > Local power management > Shaft generator base load >
Min. set point.
Parameter
Range Default Notes
Minimum limit 1 to 100 % 5 %
The minimum limit for the load on each genset (while using base load), as a percentage of
the genset nominal power.
Configure the following parameter under Configure > Parameters > Local power management > Shaft generator base load >
Max. set point.
Parameter
Range Default Notes
Maximum limit 1 to 120 % 95 %
The maximum limit for the load on each genset (while using base load), as a percentage of
genset nominal power. This maximum limit prevents genset overload.
INFO
The only way to run the shaft generator in long-term parallel with gensets is by enabling and configuring a base load for the
shaft generator.
Example
The following graph shows the relationship between the total load, and the load supplied by a shaft generator and a genset. In the
example, the shaft generator has a nominal power of 1000 kW, and the genset has a nominal power of 500 kW. Base load is
enabled, and the default settings are used.
Points on the graph
1. Total load: 0 to 925 kW: The Minimum setting is used. The genset supplies 25 kW, and the shaft generator supplies the
remainder.
2. Total load: 925 to 1375 kW: The base load Set point is used. The shaft generator runs at 90 % of its nominal power (900 kW),
and the genset supplies the remainder.
3. Total load: 1375 to 1500 kW: The Maximum setting is used. The generators share the load.
DESIGNER'S HANDBOOK 4189340911K UK Page 258 of 521
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