MeasType: Selection of discrete Fourier filtered (DFT) or true RMS filtered (RMS)
signals. RMS is used when the harmonic contents are to be considered, for example in
applications with shunt capacitors.
Operation: The protection can be set to Off or On
2ndHarmStab: Operate level of 2nd harmonic current restrain set in % of the
fundamental current. The setting range is 5 - 100% in steps of 1%. Default setting is
20%.
U
ref
I
dir
IEC09000636_1_vsd
1
2
2
3
4
IEC09000636 V1 EN
Figure 46: Directional function characteristic
1. RCA = Relay characteristic angle 55°
2. ROA = Relay operating angle 80°
3. Reverse
4. Forward
Section 6 1MRK 505 291-UEN A
Current protection
96
Application manual
To Next Page
Loading...
