ABB Relion 670 Series Product Manual page 63

Line differential protection RED670 2.0
Product version: 2.0
Table 40. Phase preference logic PPLPHIZ
Function
Operate value, phase-to-phase
and phase-to-neutral
undervoltage
Reset ratio, undervoltage
Operate value, residual voltage
Reset ratio, residual voltage
Operate value, residual current
Reset ratio, residual current
Independent time delay for
residual current at 0 to 2 x I
Independent time delay for
residual voltage at 0.8 to 1.2 x U
Independent dropoff-delay for
residual voltage at 1.2 to 0.8 x U
Operating mode
Table 41. Automatic switch onto fault logic, voltage and current based ZCVPSOF
Parameter
Operate voltage, detection of dead line
Operate current, detection of dead line
Time delay to operate for the switch onto fault function
Time delay for UI detection (s)
Delay time for activation of dead line detection
Drop-off delay time of switch onto fault function
ABB
Range or value
(1 - 100)% of UBase
< 105%
(5 - 300)% of UBase
> 95%
(10 - 200)% of IBase
> 95%
(0.000 - 60.000) s
set
(0.000 - 60.000) s
set
(0.000 - 60.000) s
set
No Filter, NoPref
Cyclic: 1231c, 1321c
Acyclic: 123a, 132a, 213a, 231a, 312a, 321a
Range or value
(1–100)% of
UBase
(1–100)% of
(0.03-120.00) s
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Accuracy
±0.5% of U
r
-
±0.5% of U at U ≤ U
r
±0.5% of U at U > U
-
±1.0% of I at I ≤ I
r
±1.0% of I at I > I
-
±0.2% or ±25 ms whichever is greater
±0.2% or ±25 ms whichever is greater
±0.2% or ±25 ms whichever is greater
Accuracy
± 0.5% of U
r
IBase ± 1.0% of I
r
± 2.0% or ± 20 ms whichever is greater
± 2.0% or ± 20 ms whichever is greater
± 2.0% or ± 20 ms whichever is greater
± 2.0% or ± 30 ms whichever is greater
1MRK505310-BEN C
r
r
r
r
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