ABB RED670 - Releasing the Function to be Tested

Table 89. Negative sequence overcurrent protection LCNSPTOC
Function Range or value Accuracy
Operate value, negative sequence overcurrent (3 - 2500)% of IBase ±1.0% of Ir at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio, negative sequence overcurrent >95% at (50–2500)% of IBase -
Operate time, start at 0 to 2 x I
set
Min. = 15 ms
Max. = 25 ms
-
Reset time, start at 2 to 0 x I
set
Min. = 15 ms
Max. = 25 ms
-
Operate time, start at 0 to 10 x I
set
Min. = 10 ms
Max. = 20 ms
-
Reset time, start at 10 to 0 x I
set
Min. = 20 ms
Max. = 35 ms
-
Critical impulse time, negative sequence overcurrent 10 ms typically at 0 to 2 x I
set
2 ms typically at 0 to 10 x I
set
-
Impulse margin time, negative sequence overcurrent 15 ms typically -
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±35 ms, whichever is
greater
Transient overreach, start function <5% at τ = 100 ms -
Table 90. Zero sequence overcurrent protection LCZSPTOC
Function
Range or value Accuracy
Operate value, zero sequence overcurrent (3-2500)% of IBase ±1.0% of I
r
at I≤I
r
±1.0% of I at I>I
r
Reset ratio, zero sequence overcurrent >95% at (50–2500)% of IBase -
Operate time, start at 0 to 2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start at 2 to 0 x I
set
Min. = 15 ms
Max. = 30 ms
-
Operate time, start at 0 to 10 x I
set
Min. = 10 ms
Max. = 20 ms
-
Reset time, start at 10 to 0 x I
set
Min. = 20 ms
Max. = 35 ms
-
Critical impulse time, zero sequence overcurrent 10 ms typically at 0 to 2 x I
set
2 ms typically at 0 to 10 x I
set
-
Impulse margin time, zero sequence overcurrent 15 ms typically -
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±35 ms whichever is
greater
1MRK 505 346-BEN -
Line differential protection RED670 2.1 IEC
Product version: 2.1
92 ABB