Measurement Modes - ABB RELION 611 Series Technical Manual

Section 4
Protection functions
4.2.2.6
184
A070443 V3 EN
Figure 81: Extended operation area in directional earth-fault protection

Measurement modes

The function operates on three alternative measurement modes: "RMS", "DFT" and
"Peak-to-Peak". The measurement mode is selected with the Measurement mode
setting.
Table 183: Measurement modes supported by DEFxPDEF stages
Measurement mode DEFLPDEF
RMS
DFT
Peak-to-Peak
For a detailed description of the measurement modes, see the
Measurement modes
DEFHPDEF
x
x
x
section in this manual.
1MRS757454 D
x
x
x
611 series
Technical Manual