EDR-5000 IM02602007E
Method 2: Pure Active Power Supervision
A trip during under frequency will be blocked if the active power is above the set threshold.
The diagram above is in compliance with FNN
5
. This diagram shows the
blocking area within the generator arrow flow system.
Method 3 – classical load shedding without taking into account the active power flow direction
The load shedding will be initiated by under frequency only. The active power flow direction wont be taken into account.
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0.5
0.5
Syst VAr 1
Syst VA
Syst W 1
Syst VA
UFLS-Method = Pure Active Power Superv
.
No Trip
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