InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
76
7.6.2.2.4 Relative Power Management
The power management based on relative load reserves perfectly fits to those applications with such
load portions connected to the group at once are much lower than the gen-set nominal power. This
mode helps to achieve the maximal lifetime of the gen-sets, as they can be operated within optimal
load range. The maximal size of the load connected at once depends on number of actually working
gen-sets. The more gen-sets are connected to the busbar the bigger load portion can be connected at
once.
The relative power management guarantees that the engines are not continuously loaded more than
to a certain level.
Activation:
Pwr management:
#
Pwr mgmt mode
= REL (%)
Suitable for engine life-based optimization.
Sum of available nominal power
– running gen-sets in PM
Total Load of the
system
Starting sequence
Stopping sequence
Gen1
Priority 1
Gen2
Priority 2
Gen3
Priority
3
Gen 1
Running, loaded
Gen 2
#LoadResStrt1
= 25%
#LoadResStrt1
= 25%
Starting
sequence
Running, loaded
Gen 3
Running, loaded
#LoadResStop1
= 37%
Stopped and
ready
Stopped and ready
#LoadResStop1
= 37%
Actual
p
ower
[ kW or kVA ]
BO Syst res OK
#LoadResStrt1
= 25%
Time
Time
Starting
sequence
Stopping
sequence
Stopping
sequence
Ready
Ready
Figure:
Power management based on relative load reserve
