ABB REG650 Product Manual page 42

Generator protection REG650
Product version: 1.3
Table 31. Load enchroachment LEPDIS
Function
Load encroachment criteria:
Load resistance, forward and
reverse
Safety load impedance angle
Reset ratio
Current protection
Table 32. Four step phase overcurrent protection, 3-phase output OC4PTOC
Function
Operate current
Reset ratio
Min. operating current
2nd harmonic blocking
Independent time delay
Minimum operate time for inverse
characteristics
Inverse characteristics, see
table 74, table 75 and table 76
Operate time, nondirectional start
function
Reset time, nondirectional start
function
Operate time, directional start
function
Reset time, directional start
function
Critical impulse time
Impulse margin time
1)
Note: Timing accuracy only valid when 2nd harmonic blocking is turned off
42
Range or value
(1.00–3000.00) Ω/phase
(5-85) degrees
105% typically
Setting range
lBase
(5-2500)% of
> 95% at (50–2500)% of lBase
lBase
(5-10000)% of
(5–100)% of fundamental
(0.000-60.000) s
(0.000-60.000) s
15 curve types
25 ms typically at 0 to 2 x I
set
35 ms typically at 2 to 0 x I
set
50 ms typically at 0 to 2 x I
set
35 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
15 ms typically
Accuracy
± 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
-
1MRK 502 050-BEN B
Accuracy
± 1.0% of I at I ≤ I
r r
± 1.0% of I at I > I
r
-
± 1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
± 2.0% of I
r
± 0.5% ±25 ms
± 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
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ABB