Name Type Description
ST2 BOOLEAN Start signal step 2
ST3 BOOLEAN Start signal step 3
ST4 BOOLEAN Start signal step 4
STFW BOOLEAN Forward directional start signal
STRV BOOLEAN Reverse directional start signal
2NDHARMD BOOLEAN 2nd harmonic block signal
8.4.5 Settings
Table 87: EF4PTOC Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
EnaDir Disable
Enable
- - Enable Enabling the Directional calculation
AngleRCA -180 - 180 Deg 1 65 Relay characteristic angle (RCA)
polMethod Voltage
Current
Dual
-
- Voltage Type of polarization
UPolMin 1 - 100 %UB 1 1 Minimum voltage level for polarization
(UN or U2) in % of UBase
IPolMin 2 - 100 %IB 1 5 Minimum current level for polarization (IN
or I2) in % of IBase
RPol 0.50 - 1000.00 ohm 0.01 5.00 Real part of source Z to be used for
current polarisation
XPol 0.50 - 3000.00 ohm 0.01 40.00 Imaginary part of source Z to be used for
current polarisation
I>Dir 1 - 100 %IB 1 10 Current level (IN or I2) for direction
release in % of IBase
2ndHarmStab 5 - 100 % 1 20 Second harmonic restrain operation in %
of IN amplitude
DirMode1 Off
Non-directional
Forward
Reverse
-
- Non-directional Directional mode of step 1 (off, non-
directional, forward, reverse)
Table continues on next page
1MRK 504 135-UEN A Section 8
Current protection
157
Technical manual