ABB Relion 670 series, Technical Reference Manual, Page: 421 / 1232

Name Type Description
PUFW BOOLEAN Forward directional pickup signal
PUREV BOOLEAN Reverse directional pickup signal
2NDHARMD BOOLEAN 2nd harmonic block signal
7.4.5 Setting parameters
Table 202: EF4PTOC (51N67N) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base value for current settings
VBase 0.05 - 2000.00 kV 0.05 400 Base value for voltage settings
AngleRCA -180 - 180 Deg 1 65 Relay characteristic angle (RCA)
polMethod Voltage
Current
Dual
- - Voltage Type of polarization
VPolMin 1 - 100 %VB 1 1 Minimum voltage level for polarization in % of
VBase
IPolMin 2 - 100 %IB 1 5 Minimum current level for polarization in % of
IBase
RNPol 0.50 - 1000.00 ohm 0.01 5.00 Real part of source Z to be used for current
polarisation
XNPol 0.50 - 3000.00 ohm 0.01 40.00 Imaginary part of source Z to be used for
current polarisation
INDirPU 1 - 100 %IB 1 10 Residual current level for directional element
in % of IBase
2ndHarmStab 5 - 100 % 1 20 Second harmonic restrain operation in % of
IN magnitude
BlkParTransf Disabled
Enabled
- - Disabled Enable blocking at parallel transformers
Use_PUValue ST1
ST2
ST3
ST4
- - ST4 Current pickup blocking at parallel transf
(step1, 2, 3 or 4)
SOTF Disabled
SOTF
UnderTime
SOTF&UnderTime
- - Disabled SOTF operation mode (Off/SOTF/Undertime/
SOTF&Undertime)
SOTFSel Open
Closed
CloseCommand
- - Open Select signal that shall activate SOTF
StepForSOTF Step 2
Step 3
- - Step 2 Selection of step used for SOTF
Table continues on next page
1MRK505222-UUS C
Section 7
Current protection
415
Technical reference manual