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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS
CHAPTER 5: SETTINGS
5
PHS DIST Z1 DIR
— All phase distance zones are reversible. The forward direction is defined by the
PHS DIST Z1 RCA
setting,
whereas the reverse direction is shifted 180° from that angle. The non-directional zone spans between the forward reach
impedance defined by the
PHS DIST Z1 REACH
and
PHS DIST Z1 RCA
settings, and the reverse reach impedance defined by
PHS DIST Z1 REV REACH
and
PHS DIST Z1 REV REACH RCA
as illustrated in the following figures.
PHS DIST Z1 SHAPE
— This setting selects the shape of the phase distance function between the mho and quadrilateral
characteristics. The selection is available on a per-zone basis. The two characteristics and their possible variations are
shown in the following figures.
Figure 5-109: Directional mho phase distance characteristic
Figure 5-110: Non-directional mho phase distance characteristic