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
Summary of Contents for ret650
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