![Thytronic Pro-N NVA100X-D Скачать руководство пользователя страница 345](http://html1.mh-extra.com/html/thytronic/pro-n-nva100x-d/pro-n-nva100x-d_manual_1113999345.webp)
APPENDIX
345
NVA100X-D - Manual - 02 - 2016
Phase overcurrent 50/51 side H and side L - Moderately inverse time curve (ANSI/IEEE type MI)
—
F_51-ANSIMI-Char.ai
1.1
2
3
4
5
6
7
8 9 10
20
I
/
I
(H)
>inv
I
/
I
(L)
>inv
0.01
0.1
1
10
100
1000
10000
t
[s]
10 s
60 s
5 s
1 s
0.02 s
0.2 s
0.1 s
0.5 s
t
=
t
(H)
>
inv
t
(H)
>
inv
t
(L)
>
inv
·
[(
I
/
I
(H)
>
inv
)
0.02
-1]
0.01
+ 0.023
t
=
t
(L)
>
inv
·
[(
I
/
I
(L)
>
inv
)
0.02
-1]
0.01
+ 0.023
Note: match of operating and setting time takes place when I/I
(H)
>
inv
or I/I
(L)
>
inv
= 1.664