ABB Relion 650 Series Technical Manual page 180

Section 6
Current protection
Name Values (Range)
IMin4 1 - 10000
t4Min 0.000 - 60.000
HarmRestrain4 Disabled
Enabled
Table 92: EF4PTOC (51N_67N) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 6
6.6.6 Monitored data
Table 93: EF4PTOC (51N_67N) Monitored data
Name
IOp
VPol
IPol
VPolIang
IPOLIANG
6.6.7 Operation principle
This function has the following three "Analog Inputs" on its function block in the configuration
tool:
1. I3P, input used for "Operating Quantity".
2. V3P, input used for "Voltage Polarizing Quantity".
3. I3PPOL, input used for "Current Polarizing Quantity".
These inputs are connected from the corresponding pre-processing function blocks in the
Configuration Tool within PCM600.
6.6.7.1 Operating quantity within the function
The function always uses Residual Current (3I
be:
1. directly measured (when a dedicated CT input of the IED is connected in PCM600 to the
fourth analog input of the pre-processing block connected to EF4PTOC (51N/67N) function
input I3P). This dedicated IED CT input can be for example, connected to:
174
Unit Step
%IB 1
s 0.001
- -
Unit Step
- 1
Type Values (Range)
REAL -
REAL -
REAL -
REAL -
REAL -
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Default Description
17 Minimum operate current for step 4 in %
of IBase
0.000 Minimum operate time in inverse curves
step 4
Enabled Enable block of step 4 from harmonic
restrain
Default Description
1 Selection of one of the Global Base Value
groups
Unit Description
A Operating current level
kV Polarizing voltage level
A Polarizing current level
deg Angle between polarizing voltage and
operating current
deg Angle between polarizing current and
operating current
) for its operating quantity. The residual current can
0
1MRK 506 326-UUS B
PID-1798-MONITOREDDATA v6
M13941-51 v2
M13941-58 v4
Line distance protection REL650
Technical manual