4.3.3.6 Signals
Table 346: LREFPNDF Input signals
Name Type Default Description
I_A SIGNAL 0 Phase A current
I_B SIGNAL 0 Phase B current
I_C SIGNAL 0 Phase C current
Io SIGNAL 0 Residual current
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
Table 347: LREFPNDF Output signals
Name Type Description
OPERATE BOOLEAN Operate
START BOOLEAN Start
BLK2H BOOLEAN 2nd harmonic block
4.3.3.7 Settings
Table 348: LREFPNDF Group settings
Parameter
Values (Range) Unit Step Default Description
Operate value 5...50 %In 1 5 Operate value
Minimum operate time 40...300000 ms 1 40 Minimum operate time
Restraint mode 1=None
2=Harmonic2
1=None Restraint mode
Start value 2.H 10...50 %In 1 50 The ratio of the 2. harmonic to
fundamental component required for
blocking
Table 349: LREFPNDF Non group settings
Parameter
Values (Range) Unit Step Default Description
Operation 1=on
5=off
1=on Operation Off / On
Reset delay time 0...60000 ms 1 20 Reset delay time
CT connection type 1=Type 1
2=Type 2
2=Type 2 CT connection type
Section 4 1YHT530004D05 D
Protection functions
430 615 series
Technical Manual
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