Setting Example For Generator Application - ABB REL670 2.2 IEC Applications Manual

Section 8
Impedance protection
8.16.3.2
432

Setting example for generator application

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).
ZB
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.
ZA
ZC
Line distance protection REL670 2.2 IEC
1MRK 506 369-UEN B
SEMOD172162-90 v4
en07000017.vsd
Application manual