GUID-754FFD93-04C7-4129-B658-32F17F272211 v4
Table 72. Overcurrent protection with binary release BRPTOC
Function
Range or value
Accuracy
Operating current
(5-2500)% of
IBase
DFT
:
± 1.0% of I
r
at I ≤ I
r
± 1.0% of I at I > I
r
Peak and Peak to peak
:
± 2.5% of I
r
at I ≤ I
r
± 2.5% of I at I > I
r
Reset ratio
> 95% at (25-2500)% of
IBase
-
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s
DFT
:
±0.2% or ±30 ms whichever is greater
Peak to peak
:
±0.2% or ±25 ms whichever is greater
Peak
:
±0.2% or ±20 ms whichever is greater
Operate time, start at 0 to 1.2 x I
set
DFT
:
Min.= 15 ms
Max. = 30 ms
-
Peak to peak
:
Min.= 10 ms
Max. =25 ms
Peak
:
Min.= 5 ms
Max. = 20 ms
Reset time, start at 1.2 x I
set
to 0
< 60 ms
-
Operate time, start at 0 to 2 x I
set
DFT
:
Min.= 10 ms
Max. = 25 ms
-
Peak to peak
:
Min.= 5 ms
Max. =20 ms
Peak
:
Min.= 5 ms
Max. = 15 ms
Reset time, start at 2 x I
set
to 0
< 60 ms
-
Operate time, start at 0 to 5 x I
set
DFT
:
Min.= 5 ms
Max. = 20 ms
-
Peak to peak
:
Min.= 5 ms
Max. =15 ms
Peak
:
Min.= 5 ms
Max. = 10 ms
Reset time, start at 5 x I
set
to 0
< 60 ms
-
Line differential protection RED670
1MRK 505 379-BEN R
Version 2.2
Hitachi Energy
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