ABB REL670 - Page 71

Table 46. Phase preference logic PPLPHIZ
Function Range or value Accuracy
Operate value, phase-to-phase
and phase-to-neutral
undervoltage
(1 - 100)% of UBase ±0.5% of U
r
Reset ratio, undervoltage < 105% -
Operate value, residual voltage (5 - 300)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Reset ratio, residual voltage > 95% -
Operate value, residual current (10 - 200)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio, residual current > 95% -
Independent time delay for
residual current at 0 to 2 x I
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Independent time delay for
residual voltage at 0.8 x U
set
to 1.2
x U
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Independent dropoff-delay for
residual voltage at 1.2 x U
set
to 0.8
x U
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Operating mode No Filter, NoPref
Cyclic: 1231c, 1321c
Acyclic: 123a, 132a, 213a, 231a, 312a, 321a
Table 47. Phase preference logic PPL2PHIZ
Function
Range or value Accuracy
Operate value, phase-to-phase
and phase-to-neutral
undervoltage
(1 - 100)% of UBase ±0.5% of U
r
Reset ratio, undervoltage < 105% -
Operate value, residual voltage (5 - 300)% of UBase ±0.5% of U
r
at U ≤ U
r
±0.5% of U at U > U
r
Reset ratio, residual voltage > 95% -
Operate value, residual current (10 - 200)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio, residual current > 95% -
Independent time delay for
residual current at 0 to 2 x I
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Independent time delay for
residual voltage at 0.8 to 1.2 x U
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Independent dropoff-delay for
residual voltage at 1.2 to 0.8 x U
set
(0.000 - 60.000) s ±0.2% or ±25 ms whichever is greater
Operating mode No Filter, NoPref
Cyclic: 1231c, 1321c
Acyclic: 123a, 132a, 213a, 231a, 312a, 321a
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
ABB 71