Tripping Curves For Vu Protection; Tripping Curves For Protection Uf - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

ABB | SACE Emax 2
Tripping curves for VU
protection
t [s]
VU
100
2%..90%
10
0.5...60
1
0,1
1 10 100
%Un
Tripping curves for protection
UF
t [s]
1000
UF
0.9..0.999
100
0.15...300
10
1
0,1
0,01
0,8 0,85 0,9 0,95 1 1,05 1,1
Fn
147 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A Protection curves | 4 - Measuring Pro protections