Monitored Data; Operation Principle; Function Inputs - ABB REG650 Technical Manual

Section 8
Current protection
Name
kIN
OpUN>
UN>
tUN
INRel>
UNRel>
Table 99: SDEPSDE Non group settings (basic)
Name
GlobalBaseSel
8.3.6
8.3.7
8.3.7.1
206
Values (Range) Unit
0.00 - 2.00 -
Off -
On
1.00 - 300.00 %UB
0.000 - 60.000 s
0.25 - 200.00 %IB
1.00 - 300.00 %UB
Values (Range) Unit
1 - 6 -

Monitored data

Table 100: SDEPSDE Monitored data
Name
INCOSPHI
IN
UN
SN
ANG FI-RCA

Operation principle

Function inputs

The function is using phasors of the residual current and voltage. Group signals I3P
and U3P containing phasors of residual current and voltage is taken from pre-
processor blocks.
The sensitive directional earth fault protection has the following sub-functions
included:
Step Default
0.01 1.00
- Off
0.01 20.00
0.001 0.100
0.01 1.00
0.01 3.00
Step Default
1 1
Type Values (Range)
REAL -
REAL -
REAL -
REAL -
REAL -
1MRK 502 048-UEN A
Description
IDMT time multiplier for non-directional
residual overcurrent
Operation of non-directional residual
overvoltage
Set level for non-dir residual voltage, % of
UBase
Time delay for non-directional residual
overvoltage
Residual release current for all directional
modes, in % of IBase
Residual release volt for all dir modes, %
of UBase
Description
Selection of one of the Global Base Value
groups
Unit Description
A Mag of residual current
along polarizing qty
3I0cos(Fi-RCA)
A Measured magnitude of
the residual current 3I0
kV Measured magnitude of
the residual voltage 3U0
MVA Measured magnitude of
residual power
3I03U0cos(Fi-RCA)
deg Angle between 3U0 and
3I0 minus RCA (Fi-RCA)
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