Table 52. Instantaneous residual overcurrent protection EFPIOC
Function
Range or value
Accuracy
Operate current
(5-2500)% of lBase
±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio
> 95% at (50–2500)% of lBase
-
Operate time at 0 to 2 x I
set
Min. = 15 ms
Max. = 25 ms
-
Reset time at 2 x I
set
to 0
Min. = 15 ms
Max. = 25 ms
-
Critical impulse time
10 ms typically at 0 to 2 x I
set
-
Operate time at 0 to 10 x I
set
Min. = 5 ms
Max. = 15 ms
-
Reset time at 10 x I
set
to 0
Min. = 25 ms
Max. = 35 ms
-
Critical impulse time
2 ms typically at 0 to 10 x I
set
-
Dynamic overreach
< 5% at
t
= 100 ms
-
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
ABB
75
Содержание RELION REL670
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