Eaton EDR-5000 - Page 788

EDR-5000 IM02602007E
Centralized Under Frequency Load Shedding within grids with temporary power supply.
The power flow direction detection (if activated) will block the shedding of sub-grids in case of an under frequency
situation of those sub-grids that stabilize the frequency. The sub-grid will be shed only if it decreases the frequency (by
consuming active power).
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G
Grid
f<
(81U)
Protective Relay
P
(32)
Load
Load
Generator
Pr
Pr