ABB RED650 - Technical Data

Direction
Element
4 step over current
element
One element for each
step
Harmonic
Restraint
Mode
Selection
earthFaultDirection
harmRestrBlock
enableDir
enableStep
1-4
DirectionalMode
1-4
TRIP
Element
enableDir
angleValid
Directional Check
operatingCurrent
SwitchOnToFault
start step 2, 3 and 4
signal to
communication
scheme
TRIP
3U0
3I0
Blocking at parallel
transformers
1
CB
pos
or cmd
Element
3I0
DirMode
DirMode
INPol
IEC06000376-2-en.vsd
I3PDIR
IEC06000376 V3 EN-US
Figure 90: Functional overview of EF4PTOC
8.4.8 Technical data
IP11455-1 v1
M15223-1 v17
Table 89: EF4PTOC technical data
Function
Range or value Accuracy
Operate current, step 1-4 (1-2500)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio > 95% at (10-2500)% of IBase -
Relay characteristic angle
(RCA)
(-180 to 180) degrees ±2.0 degrees
Operate current for directional release (1–100)% of IBase For RCA ±60
degrees:
±2.5% of I
r
at I ≤ I
r
±2.5% of I at I > I
r
Independent time delay at 0 to 2 x I
set
, step
1-4
(0.000-60.000) s ±0.2% or ±35 ms
whichever is
greater
Minimum operate time for inverse curves,
step 1-4
(0.000 - 60.000) s ±0.2% or ±35 ms
whichever is
greater
Table continues on next page
1MRK 505 394-UEN A Section 8
Current protection
Line differential protection RED650 2.2 IEC 203
Technical manual