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
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