ABB REG650 - Page 42

Table 31. Load enchroachment LEPDIS
Function Range or value Accuracy
Load encroachment criteria:
Load resistance, forward and
reverse
Safety load impedance angle
(1.00–3000.00) Ω/phase
(5-85) degrees
± 5.0% static accuracy
± 2.0 degrees static angular accuracy
Conditions:
Voltage range: (0.1-1.1) x U
r
Current range: (0.5-30) x I
r
Reset ratio 105% typically -
Current protection
Table 32. Four step phase overcurrent protection, 3-phase output OC4PTOC
Function
Setting range Accuracy
Operate current (5-2500)% of lBase
± 1.0% of I
r
at I ≤ I
r
± 1.0% of I at I > I
r
Reset ratio > 95% at (50–2500)% of lBase -
Min. operating current (5-10000)% of lBase
± 1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
2nd harmonic blocking (5–100)% of fundamental
± 2.0% of I
r
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 74, table 75 and table 76
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 start
function
25 ms typically at 0 to 2 x I
set
-
Reset time, nondirectional start
function
35 ms typically at 2 to 0 x I
set
-
Operate time, directional start
function
50 ms typically at 0 to 2 x I
set
-
Reset time, directional start
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
Generator protection REG650
1MRK 502 050-BEN B
Product version: 1.3
42 ABB