ComAp IG-NT Reference Manual page 14

#%LdResStrt1
#%LdResStrt1
= 25%
Gen 3
Gen 2
Gen 1 = Running, Loaded
BO Syst res OK
art/Stop conditions in Power management
Reserve Actual Reserve
ARstrt = ΣPg
Absolute
ARstp = ΣPg*
kW / kVA
RRstrt = [(ΣPg
Relative
RRstp = [(ΣPg*
%
Where
ARstrt Actual Absolute reserve in kW or kVA - for engine start calculation.
ARstp Actual Absolute reserves in kW or kVA - for engine stop calculation.
RRstrt Actual Relative reserve in % - for engine start calculation.
RRstp Actual Relative reserves in % - for engine stop calculation.
ΣPg
Sum of Nominal power of all gen-sets on the bus.
Nom
Inteli NT MINT, SW Version 3.0, ©ComAp –May 2013
IGS-NT-MINT-3.0 Reference Guide.PDF
#%LdResStrt1
= 25%
= 25%
#NextStrt del
Running
#NextStrt del
Running
Figure: Power management function in relative mode
– ΣPg
Nom Act
– ΣPg
Nom Act
– ΣPg ) / ΣPg
Nom Act Nom
– ΣPg ) / ΣPg*
Nom Act Nom
#NextStp del
Start condition
ARstrt < #LdResStrt
].100% RRstrt < #%LdResStrt
].100%
#%LdResStp1
=37%
#%LdResStp1
=37%
Time
Unloading / Cooling
#NextStp del
Unloading / Cooling
Stop condition
ARstp > #LdResStp
RRstp > #%LdResStp
St
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