Inteli NT MINT, SW Version 2.6, ©ComAp – November 2011
IGS-NT-MINT-2.6-Reference Guide.PDF
11
Relative power management in %
Guarantees that the engines be not continuously loaded more than to a certain level, leaving less than
selected relative load reserve. Suitable for engine life-based optimization.
Activation: #
Pwr mgmt mode
= REL (%)
Start/Stop conditions in Power management
Reserve
Actual Reserve
Start condition
Stop condition
Absolute
kW / kVA
ARstrt =
Σ
Pg
Nom
–
Σ
Pg
Act
ARstp =
Σ
Pg*
Nom
–
Σ
Pg
Act
ARstrt <
#LdResStrt
ARstp
>
#LdResStp
Relative
%
RRstrt = [(
Σ
Pg
Nom
–
Σ
Pg
Act
) /
Σ
Pg
Nom
].100%
RRstp = [(
Σ
Pg*
Nom
–
Σ
Pg
Act
) /
Σ
Pg*
Nom
].100%
RRstrt <
#%LdResStrt
RRstp
>
#%LdResStp
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.
Σ
Pg
Nom
Sum of Nominal power of all gen-sets on the bus.
Σ
Pg*
Nom
Sum of Nominal power of all gen-sets on the bus apart from the one, which is going to be
stopped.
Σ
Pg
Act
Sum of Actual power of all gen-sets on the bus = system load.