ABB REG316 4 Series - Page 201

REG 316*4 1MRB520049-Uen / Rev. F ABB Switzerland Ltd
3-163
HEST 935 017 C
Pick-up
Integration
Trip
0
0
0
"TRIP-Delay" setting
t
R
t
R
t
R
t
R
t
int
t
int
integrated time
t
R
reset time
Fig. 3.5.14.4 Underreactance protection
Effect of the integrator during power swings