Deif PPM 300 - P Load Sharing Failure (High Frequency) on DG

4.10.4 P load sharing failure (high frequency) on DG
This advanced blackout prevention alarm can be activated if there is both a high frequency and
a positive P 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 > P
load sharing failure (high frequency).
Table 4.31
Default parameters
Parameter Range Default
High frequency 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 > P
load sharing failure (high frequency).
Table 4.32
Default parameters
Parameter Range Default
High frequency 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
DESIGNER'S HANDBOOK 4189340911K UK Page 133 of 521