below the minimum level before
Release delay time
is exceeded, the Timer reset
state is activated. If the drop-off continues for more than
Reset delay time
, Timer is
deactivated.
Blocking logic
The binary input BLOCK can be used to block the function. The activation of the
BLOCK input deactivates the RELEASE output and resets Timer.
5.14.6 Application
The three-phase power directional element function DPSRDIR improves the
possibility to obtain a selective function of the overcurrent protection in meshed
networks. DPSRDIR is used to block or release other overcurrent protection
functions.
5.14.7 Signals
5.14.7.1 DPSRDIR Input signals
Table 1213: DPSRDIR 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
5.14.7.2 DPSRDIR Output signals
Table 1214: DPSRDIR Output signals
Name Type Description
RELEASE BOOLEAN Release signal if direction cri-
teria is satisified
DIRECTION Enum Direction information
5.14.8 DPSRDIR Settings
Table 1215: DPSRDIR Group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Release delay time 0...1000 ms 1 10 Release delay time
Characteristic an-
gle
-179...180 deg 1 60 Characteristic an-
gle
Table continues on the next page
Protection related functions 1MRS759142 F
1284 REX640
Technical Manual
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