GE D60 Instruction Manual page 264

5.6 GROUPED ELEMENTS
• PHS DIST Z1 DIR: All phase distance zones are reversible. The forward direction is defined by the
setting, whereas the reverse direction is shifted 180° from that angle. The non-directional zone spans between the for-
ward reach impedance defined by the
ance defined by
PHS DIST Z1 REV REACH
• PHS DIST Z1 SHAPE: This setting selects the shape of the phase distance function between the mho and quadrilat-
eral characteristics. The selection is available on a per-zone basis. The two characteristics and their possible varia-
tions are shown in the following figures.
5
5-130
Ensure that the
PHASE VT SECONDARY VOLTAGE

AC INPUTS VOLTAGE BANK
ated memory action.
PHS DIST Z1 REACH
and
PHS DIST Z1 REV REACH RCA
X
DIR COMP LIMIT
Figure 5–57: DIRECTIONAL MHO DISTANCE CHARACTERISTIC
REV REACH
RCA
Figure 5–58: NON-DIRECTIONAL MHO DISTANCE CHARACTERISTIC
D60 Line Distance Protection System
setting (see the
menu) is set correctly to prevent improper operation of associ-
and
PHS DIST Z1 RCA
as illustrated below.
COMP LIMIT
DIR COMP LIMIT
DIR RCA
RCA
837720A1.CDR
X
COMP LIMIT
RCA
837802A1.CDR
5 SETTINGS

SETTINGS SYSTEM SETUP
PHS DIST Z1 RCA
settings, and the reverse reach imped-
R
R

GE Multilin