ABB Relion 670 series, Technical Manual

Page: 473 / 1432

8.2.8 Technical data
M12342-1 v21
Table 219: OC4PTOC (51/67) technical data
Function Range or value Accuracy
Trip current, step 1-4 (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
-
Minimum operate current, step 1-4 (1-10000)% of
lBase
± 1.0% of I
n
at I ≤ I
n
± 1.0% of I at I > I
n
Relay characteristic angle (RCA) (40.0–65.0) degrees
± 2.0 degrees
Relay operating angle (ROA) (40.0–89.0) degrees
± 2.0 degrees
Second harmonic blocking (5–100)% of fundamental ± 2.0% of I
n
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 trip time for inverse curves , step
1-4
(0.000-60.000) s ±0.2% or ±35 ms whichever is
greater
Inverse time characteristics, see
table 1076 , table 1077 and table 1078
16 curve types See table 1076 , table 1077 and table
1078
Trip time, pickup non-directional at 0 to 2 x
I
set
Min. = 15 ms -
Max. = 30 ms
Reset time, pickup non-directional at 2 x
I
set
to 0
Min. = 15 ms -
Max. = 30 ms
Operate time, start non-directional at 0 to
10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time, start non-directional at 10 x I
set
to 0
Min. = 20 ms
Max. = 35 ms
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
Operate frequency, directional overcurrent 38-83 Hz -
Operate frequency, non-directional
overcurrent
10-90 Hz -
8.3 Instantaneous residual overcurrent protection EFPIOC
(50N)
IP14508-1 v3
1MRK 502 066-UUS B Section 8
Current protection
467
Technical manual