IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
Gen1
Priority 1
Gen2
Priority 2
Gen3
Priority 3
Gen 1 = Running, Loaded
Gen 2
#%LdResStrt1
= 25%
#%LdResStrt1
= 25%
#NextStrt del
Running
Gen 3
#NextStrt del
Running
#%LdResStp1
=37%
#NextStp del
Unloading / Cooling
#NextStp del
Unloading / Cooling
#%LdResStp1
=37%
Actual power [ kW or kVA ]
Time
BO Syst res OK
#%LdResStrt1
= 25%
St
art/Stop conditions in Power management
ARstrt = ΣPg
Nom
– ΣPg
Act
ARstp = ΣPg*
Nom
– ΣPg
Act
RRstrt = [(ΣPg
Nom
– ΣPg
Act
) / ΣPg
Nom
].100%
RRstp = [(ΣPg*
Nom
– ΣPg
Act
) / ΣPg*
Nom
].100%
Where
Actual Absolute reserve in kW or kVA - for engine start calculation.
Actual Absolute reserves in kW or kVA - for engine stop calculation.
Actual Relative reserve in % - for engine start calculation.
Actual Relative reserves in % - for engine stop calculation.
Sum of Nominal power of all gen-sets on the bus.
Figure: Power management function in relative mode