Settings; Monitored Data - ABB RET650 Technical Manual

Section 6
Differential protection
6.2.5
6.2.6
112
Signal
IDIFF
ANGLE
I2RATIO

Settings

Table 38: Basic general settings for the function REFPDIF (REF1-)
Parameter Range
GlobalBaseSel 1 - 6
Table 39: Basic parameter group settings for the function REFPDIF (REF1-)
Parameter Range
Operation Off
On
IdMin 4.0 - 100.0
Table 40: Advanced parameter group settings for the function REFPDIF (REF1-)
Parameter Range
ROA 60 - 90

Monitored data

Table 41: REFPDIF Monitored data
Name Type
IRES REAL
IN REAL
IBIAS REAL
IDIFF REAL
ANGLE REAL
I2RATIO REAL
Description
Magnitude of fundamental frequency differential current
Direction angle from zero sequence feature
Second harmonic ratio
Step Default
1 1
Step Default
- Off
0.1 10.0
Step Default
1 60
Values (Range) Unit
- A
- A
- A
- A
- deg
- -
1MRK 504 135-UEN A
Unit Description
- Selection of one of
the Global Base
Value groups
Unit Description
- Operation Off / On
%IB Maximum sensitivity
in % of IBase
Unit Description
Deg Relay operate angle
for zero sequence
directional feature
Description
Magnitude of
fundamental frequency
residual current
Magnitude of
fundamental frequency
neutral current
Magnitude of the bias
current
Magnitude of
fundamental frequency
differential current
Direction angle from zero
sequence feature
Second harmonic ratio
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