TECHNICAL DATA
22
NA30 - Manual - 04 - 2022
Breaker failure - BF
BF Phase current threshold (
I
BF
>) 0.05...1.00
I
n
(step 0.01
I
n
)
BF Residual current threshold (
I
EBF
>)
0.01...2.00
I
n
(step 0.01
I
En
)
BF Time delay(
t
BF)
0.06...10.00 s (step 0.01 s)
Dropout
ratio
0.95...0.98
Dropout time
≤
0.05 s
I
BF
>Pickup accuracy
±
0.5% con 0.1
I
nL
±
0.2% con 1
I
nL
I
EBF
>Pickup accuracy
± 0.5% con 0.01
I
En
± 0.2% con 1
I
En
Operate
time
accuracy
5%
or
±
10 ms