ABB SACE Emax E4.2 - G Hi-Touch Protections; Tripping Curves for Protection ROCOF

ABB | SACE Emax 2
Protection curves | 7 - G Hi-Touch protections153 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
7 - G Hi-Touch protections
The following are the trip curves of the protections available with Ekip G Hi-Touch trip units.
NOTE: the protections S(V) with S2(V), and RQ with RQ2, share the same calculation algorithm.
For graphical convenience only one curve is shown for each protection (S(V) and RQ in the
previous chapters).
Tripping curves for protection
ROCOF
0.4..10
0.5..10
100
10
1
0,1
0,1110 100
Hz/s
t [s]
ROCOF