ABB REC650 - Page 75

Table 26. Instantaneous residual overcurrent protection EFPIOC (50N)
Function Range or value Accuracy
Operate current (1-2500)% of lBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio > 95% -
Operate time 20 ms typically at 0 to 2 x I
set
-
Reset time 30 ms typically at 2 to 0 x I
set
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Operate time 10 ms typically at 0 to 5x I
set
-
Reset time 40 ms typically at 5 to 0x I
set
-
Critical impulse time 2 ms typically at 0 to 5 x I
set
-
Dynamic overreach < 5% at t = 100 ms -
Bay control REC650 ANSI 1MRK 511 265-BUS B
Product version: 1.2
ABB 75