ABB REL650 series, Technical Manual

Page: 210 / 856

7.3.9 Technical data
Table 89: OC4PTOC (51/67) technical data
Function Setting range Accuracy
Operate current (5-2500)% of
lBase
± 1.0% of I
n
at I ≤ I
n
±
1.0% of I at I > I
n
Reset ratio > 95% at (50–2500)% of lBase -
Min. operating current (5-10000)% of
lBase
±
1.0% of I
n
at I ≤ I
n
± 1.0% of I at I > I
n
2nd harmonic blocking (5–100)% of fundamental
±
2.0% of I
n
Independent time delay (0.000-60.000) s ± 0.5% ± 25 ms
Minimum operate time for
inverse characteristics
(0.000-60.000) s
± 0.5% ± 25 ms
Inverse characteristics, see
table 656 , table 657 and table
658
15 curve types 1)
ANSI/IEEE C37.112
IEC 60255–151
±
3% or
±
40 ms
0.10 ≤ k ≤ 3.00
1.5 x I
set
≤ I ≤ 20 x I
set
Operate time, nondirectional
pickup function
25 ms typically at 0 to 2 x I
set
-
Reset time, pickup function 35 ms typically at 2 to 0 x I
set
-
Operate time, directional pickup
function
50 ms typically at 0 to 2 x I
set
-
Reset time, directional pickup
function
35 ms typically at 2 to 0 x I
set
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
1)
Note: Timing accuracy only valid when 2nd harmonic blocking is turned off
7.4 Four step phase overcurrent protection phase
segregated output OC4SPTOC (51/67)
7.4.1 Identification
Function description IEC 61850 identification IEC 60617 identification ANSI/IEEE C37.2 device
number
Four step phase
overcurrent protection,
phase segregated
output
OC4SPTOC
ID-2147.VSD V1 EN
51/67
Section 7
1MRK 506 335-UUS A
Current protection
204
Technical manual