![Thytronic Pro-N NVA100X-D Скачать руководство пользователя страница 343](http://html1.mh-extra.com/html/thytronic/pro-n-nva100x-d/pro-n-nva100x-d_manual_1113999343.webp)
APPENDIX
343
NVA100X-D - Manual - 02 - 2016
Negative sequence overcurrent 46M - Very inverse time curve (ANSI/IEEE type VI)
—
F_46LT-ANSIVI-Char.ai
1.1
2
3
4
5
6
7
8 9 10
20
I
2
/
I
2
>inv
0.01
0.1
1
10
100
1000
10000
t
[s]
10 s
60 s
t
2
>
inv
5 s
1 s
t
2
>
inv
= 0.5 s
t
2
>
inv
= 0.2 s
t
2
>
inv
= 0.1 s
t
2
>
inv
= 0.02 s
t
=
t
2
>
inv
·
[(
I
2
/
I
2
>
inv
)
2
-1]
3.922
+ 0.092
Note: match of operating and setting time takes place when I
2
/I
2
>
inv
= 2.306