ABB RELION REX640 Technical Manual page 427

1MRS759142 C
REX640
Technical Manual
GUID-7D3D8F75-685A-467C-834F-E581873CEA42 V1 EN
Figure 223: Definition of the relay characteristic angle, RCA=0 degrees in a
compensated network
Example 2
The "Phase angle" mode is selected, solidly earthed network (φRCA = +60 deg)
=> Characteristic angle = +60 deg
Section 4
Protection functions
421