ABB REL670 2.2 IEC - Setting Example for Generator Application

8.16.3.2 Setting example for generator application
SEMOD172162-90 v4
In case of out of step conditions this shall be checked if the pole slip centre is
inside the generator (zone 1) or if it is situated in the network (zone 2).
ZC
ZA
ZB
en07000017.vsd
IEC07000017 V1 EN-US
Figure 236: Generator application of pole slip protection
If the apparent impedance crosses the impedance line ZB – ZA this is the detected
criterion of out of step conditions, see figure 237.
Section 8 1MRK 506 369-UEN B
Impedance protection
432 Line distance protection REL670 2.2 IEC
Application manual