ABB Relion REL650 Series Product Manual page 57

Line distance protection REL650
Version 2.2
Table 34. Four step phase overcurrent protection, 3-phase output OC4PTOC
Function
Operate current, step 1-4
Reset ratio
Minimum operate current, step 1-4
Relay characteristic angle (RCA)
Maximum forward angle
Minimum forward angle
Second harmonic blocking
Independent time delay at 0 to 2 x I
step 1-4
Minimum operate time for inverse
curves , step 1-4
Inverse time characteristics, see
table 155, table 156 and table
Operate time, nondirectional start
function
Reset time, nondirectional start function
Operate time, directional start function
Reset time, directional start function
Operate time, start non-directional at 0
to 2 x I
set
Reset time, start non-directional at 2 x
I to 0
set
Operate time, start non-directional at 0
to 10 x I
set
Reset time, start non-directional at 10 x
I to 0
set
Critical impulse time
Impulse margin time
Operate frequency, directional
overcurrent
Operate frequency, non-directional
overcurrent
1)
Note: Timing accuracy only valid when 2nd harmonic blocking is turned off
Hitachi Power Grids
Range or value
(1-2500)% of lBase
> 95%
(5-10000)% of lBase
(-70.0– -50.0) degrees
(40.0–70.0) degrees
(75.0–90.0) degrees
(5–100)% of fundamental
, (0.000-60.000) s
set
(0.000-60.000) s
15 curve types
157
25 ms typically at 0 to 2 x I
35 ms typically at 2 x I
50 ms typically at 0 to 2 x I
35 ms typically at 2 x I
Min. = 15 ms
Max. = 30 ms
Min. = 15 ms
Max. = 30 ms
Min. = 5 ms
Max. = 20 ms
Min. = 20 ms
Max. = 35 ms
10 ms typically at 0 to 2 x I
15 ms typically
38-83 Hz
10-90 Hz
© 2017 - 2021 Hitachi Power Grids. All rights reserved
M12342-1 v23
Accuracy
±1.0% of I
at I ≤ I
r
±1.0% of I at I > I
-
±1.0% of I
at I ≤ I
r
±1.0% of I at I > I
±2.0 degrees
±2.0 degrees
±2.0% of I
r
±0.2% or ±35 ms whichever is greater
±0.5% ±25 ms
1)
ANSI/IEEE C37.112
IEC 60255–151
±3% or ±40 ms
0.10 ≤ k ≤ 3.00
1.5 x I ≤ I ≤ 20 x I
set
-
set
to 0 -
set
-
set
to 0 -
set
-
-
-
-
-
set
-
-
-
1MRK 506 384-BEN H
r
r
r
r
set
57