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88
NC20 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
F_51RMS-Capacitor-Char.ai
1.1
2
3
4
5
6
7
8
9 10
20
I
RMS
/
I
>inv
0.01
0.1
1
10
100
1000
10000
100000
1000000
t
[s]
t
=
t
>
inv
·
[1.1
·
(
I
RMS
/
I
>
inv
)
17
-1]
+ 0.1
50000
t
>
inv
= 0.1 s
t
>
inv
= 0.02 s
t
>
inv
= 1.0 s
t
>
inv
= 10 s
t
>
inv
= 60 s
Operating characteristic concerning the Phase overcurrent RMS element (50/51 RMS)