Monitored Data; Operation Principle - ABB Relion 650 Series REB650 Technical Manual

1MRK 505 288-UEN A
Name Values (Range)
IMin4
t4Min
HarmRestrain4
Table 39: EF4PTOC Non group settings (basic)
Name Values (Range)
GlobalBaseSel
SeqTypeUPol
SeqTypeIPol
SeqTypeIDir
7.2.6
7.2.7
Technical manual
Unit
1 - 10000 %IB
0.000 - 60.000 s
Off -
On
Unit
1 - 6 -
ZeroSeq -
NegSeq
ZeroSeq -
NegSeq
ZeroSeq -
NegSeq

Monitored data

Table 40: EF4PTOC Monitored data
Name
STDIR
IOp
UPol
IPol
UPOLIANG
IPOLIANG
IOPDIR

Operation principle

Four step residual overcurrent protection, zero or negative sequence direction
EF4PTOC function has the following four "Analog Inputs" on its function block in the
configuration tool:
Step Default
1 17
0.001 0.000
- On
Step Default
1 1
- ZeroSeq
- ZeroSeq
- ZeroSeq
Type Values (Range)
INTEGER 3=Both
1=Forward
2=Reverse
0=No direction
REAL -
REAL -
REAL -
REAL -
REAL -
REAL -
Section 7
Current protection
Description
Minimum operate current for step 4 in % of
IBase
Minimum operate time in inverse curves
step 4
Enable block of step 4 from harmonic
restrain
Description
Selection of one of the Global Base Value
groups
Choice of measurand for polarizing
voltage
Choice of measurand for polarizing
current
Choice of measurand for directional
current
Unit Description
- Fault direction coded as
integer
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
A Amplitude of the
directional operating
quantity
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