InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
96
7.6.4
Minimum Running Power
Minimum Running Power function is used to adjust a minimum value of the sum of nominal power of
all running gen-sets. If the function is active, then the gen-sets would not be stopped, although the
reserve for stop is fulfilled.
EXAMPLE:
P
o
we
r [k
W
]
Sum of available nominal
power – running gen-sets in
PM
Total Load of the
system
Level to start additional gen-set
Nom Pwr in PM - #LoadResStrt X
75
575
100
600
200
700
1700
Time
Time
Starting
sequence
Gen 1
Gen 2
Running
Gen 3
Start sequence
Stop sequence
Stopped
and ready
Starting
sequence
Stopped and ready
Stopping
sequence
Stopping
sequence
Level to stop additional gen-set
Nom Pwr in PM - #LoadResStop X
400
MinRun
Pwr
LBI:MinRunPwr 1
Minimal available
nominal power in PM if
LBI: MinRunPWR 1
activated
The setpoint
Pwr management:
#MinRunPower 1
is adjusted to 400 kW. Once the LBI:
MinRunPwr 1
is activated, the available nominal running power has to be equal or higher to 400 kW. Even if the load
reserve is big enough to stop the gen-set #2 (nominal power 500 kW), the gen-set keeps running as at
least 400 kW has to be available. The gen-set#1 (nominal power 200 kW) is not enough.
There are 3 different
MinRunPower
setpoints.
#MinRunPower 1
considered if LBI
MinRun power 1
activated
#MinRunPower 2
considered if LBI
MinRun power 2
activated
#MinRunPower 3
considered if LBI
MinRun power 3
activated
