Thytronic Pro-N NVA100X-D - Phase overcurrent 50;51 side H and side L - Rectifier curves

358
NVA100X-D - Manual - 02 - 2016
APPENDIX
Phase overcurrent 50/51 side H and side L - Rectifier curves—
F_51-RI-Char.ai
0.01
0.1
1
100
10
1000
10 000
100 000
1000 000
t [s]
1.1
2 3 4 5 6 7 8 9 10 20
I /I
(L)
>inv
I /I
(H)
>inv
60 s
10 s
5 s
1 s
0.1 s
0.5 s
0.02 s
0.1 s
t =
t
(H)
>
inv
t
(H)
>
inv
t
(L)
>
inv
·
[(I/I
(H)
>
inv
)
5.6
-1]
2351
t =
t
(L)
>
inv
·
[(I/I
(L)
>
inv
)
5.6
-1]
2351
Note: match of operating and setting time takes place when I/I
(H)
>
inv
or I/I
(L)
>
inv
= 4