ABB RET670 Applications Manual page 246

Section 3
IED application
240
Reactive Reach
Compensated lines with the capacitor into the zone 1 reach :
A X B
C
X
LLOC
X
L
en07000063.vsd
IEC07000063 V1 EN
Figure 107: Simplified single line diagram of series capacitor located at X
from A station
1MRK504116-UUS C
ohm
LLOC
Application manual