Deif PPM 300 - Q Load Sharing Failure (High Voltage) on DG

4.10.6 Q load sharing failure (high voltage) on DG
This advanced blackout prevention alarm can be activated if there is both a high voltage and a
positive Q load sharing error at the GENSET controller.
Set
point
time
Delay
Limit
GENSET controllers
Configure the parameters under Configure > Parameters > Local power management > Advanced blackout prevention > Q
load sharing failure (high voltage).
Table 4.35
Default parameters
Parameter Range Default
High voltage limit 90 to 110 % 101 %
Set point 0.1 to 100 % 20 %
Delay 0 s to 1 h 3 s
Enable Not enabled, Enabled Not enabled
Latch Not enabled, Enabled Enabled
Action Trip generator breaker
BUS TIE breaker controller
Configure the parameters under Configure > Parameters > Local power management > Advanced blackout prevention > Q
load sharing failure (high voltage).
Table 4.36
Default parameters
Parameter Range Default
High voltage limit 90 to 110 % 100.5 %
Set point 0.1 to 100 % 20 %
Delay 0 s to 1 h 2 s
Enable Not enabled, Enabled Not enabled
Latch Not enabled, Enabled Enabled
Action Trip bus tie breaker
Inhibit Bus tie breaker open
4.10.7 Overload on DG
This advanced blackout prevention alarm can be activated if the load on any genset in the
section exceeds the alarm set point.
Controller types: This alarm is present in BUS TIE breaker controllers.
Set
point
Value
time
Delay
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