ABB Relion 670 series - Page 723

V
INJECTED
I
INJECTED
Operating Region
en06000447_ansi.vsd
ANSI06000447 V1 EN-US
Figure 384: Two stage directional current measurement in the general application
multipurpose function
The sensitivity of the rotor ground fault protection is dependent of the rotor winding capacitance
to ground and the set pick-up current level of the General current and voltage protection
(CVGAPC). The sensitivity is shown in figure
385.
1MRK 502 066-UUS B Section 11
Multipurpose protection
717
Technical manual