ABB REG650 ANSI, Technical Manual

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Signal Description
IDIFF Magnitude of fundamental frequency differential current
ANGLE Direction angle from zero sequence feature
I2RATIO Second harmonic ratio
6.2.5 Settings
Table 33: Basic general settings for the function REFPDIF (REF1-)
Parameter Range Step Default Unit Description
GlobalBaseSel 1 - 6 1 1 - Selection of one of
the Global Base
Value groups
Table 34: Basic parameter group settings for the function REFPDIF (REF1-)
Parameter Range Step Default Unit Description
Operation Off
On
- Off - Operation Off / On
IdMin 4.0 - 100.0 0.1 10.0 %IB Maximum sensitivity
in % of IBase
Table 35: Advanced parameter group settings for the function REFPDIF (REF1-)
Parameter Range Step Default Unit Description
ROA 60 - 90 1 60 Deg Relay operate angle
for zero sequence
directional feature
6.2.6 Monitored data
Table 36: REFPDIF Monitored data
Name Type Values (Range) Unit Description
IRES REAL - A Magnitude of
fundamental frequency
residual current
IN REAL - A Magnitude of
fundamental frequency
neutral current
IBIAS REAL - A Magnitude of the bias
current
IDIFF REAL - A Magnitude of
fundamental frequency
differential current
ANGLE REAL - deg Direction angle from zero
sequence feature
I2RATIO REAL - - Second harmonic ratio
1MRK 502 048-UEN A
Section 6
Differential protection
111
Technical manual