Figure 219: Closed ring network topology where feeding lines are protected with
directional overcurrent protection relays
4.1.2.9 Signals
DPHLPDOC Input signals
Table 398: DPHLPDOC Input signals
Name Type Default Description
I3P SIGNAL - Three-phase currents
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
ENA_MULT BOOLEAN 0=False Enable signal for cur-
rent multiplier
NON_DIR BOOLEAN 0=False Forces protection to
non-directional
1MRS759142 F Protection functions
REX640
Technical Manual
361
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