Measurement Modes - ABB RELION Series Technical Manual

1MRS758755 A
4.2.2.6
REC615 and RER615
Technical Manual
A070443 V3 EN
Figure 148: 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 322: Measurement modes supported by (F)DEFxPDEF stages
Measurement mode (F)DEFLPDEF
RMS
DFT
Peak-to-Peak
For a detailed description of the measurement modes, see the
Measurement modes
Protection functions
DEFHPDEF
x
x
x
section in this manual.
Section 4
x
x
x
291