Technical Data - ABB RED650 Technical Manual

1MRK 505 394-UEN A
8.4.8
Line differential protection RED650 2.2 IEC
Technical manual
Directio n
INP ol
Elemen t
3U0
3I0
I3PDIR
DirMode
ena bleDir
3I0
Harmonic
Restrain t
Elemen t
Blocking at par allel
transfor mer s
Mode
Sele ction
IEC06000376 V3 EN-US
Figure 90: Functional overview of EF4PTOC

Technical data

Table 89: EF4PTOC technical data
Function
Operate current, step 1-4
Reset ratio
Relay characteristic angle
(RCA)
Operate current for directional release
Independent time delay at 0 to 2 x I
1-4
Minimum operate time for inverse curves,
step 1-4
Table continues on next page
Directio nal Che ck
ope ratin gCurrent
earthFaultDir ection
ang leValid
harmRestrB lock
1
star t step 2, 3 and 4
SwitchO nTo Fa ult
CB
pos
DirMode
or cmd
ena bleDir
ena bleStep 1-4
Directio nalMode 1-4
Range or value
(1-2500)% of IBase
> 95% at (10-2500)% of IBase
(-180 to 180) degrees
(1–100)% of IBase
, step (0.000-60.000) s
set
(0.000 - 60.000) s
Section 8
Current protection
signal to
commu nica tion
sche me
Elemen t
4 step over current
elemen t
TRIP
One ele me nt fo r ea ch
step
TRIP
IEC06000376-2-en.vsd
Accuracy
±1.0% of I
±1.0% of I at I > I
-
±2.0 degrees
For RCA ±60
degrees:
±2.5% of I
±2.5% of I at I > I
±0.2% or ±35 ms
whichever is
greater
±0.2% or ±35 ms
whichever is
greater
IP11455-1 v1
M15223-1 v17
at I ≤ I
r r
r
at I ≤ I
r r
r
203