5-156
T60 Transformer Protection System
GE Multilin
5.6 GROUPED ELEMENTS
5 SETTINGS
5
The directional and non-directional quadrilateral ground distance characteristics are shown below. The directional and
non-directional mho ground distance characteristics are the same as those shown for the phase distance element in
the previous sub-section.
Figure 5–71: DIRECTIONAL QUADRILATERAL GROUND DISTANCE CHARACTERISTIC
Figure 5–72: NON-DIRECTIONAL QUADRILATERAL GROUND DISTANCE CHARACTERISTIC
•
GND DIST Z1 Z0/Z1 MAG:
This setting specifies the ratio between the zero-sequence and positive-sequence imped-
ance required for zero-sequence compensation of the ground distance elements. This setting is available on a per-
zone basis, enabling precise settings for tapped, non-homogeneous, and series compensated lines.
•
GND DIST Z1 Z0/Z1 ANG:
This setting specifies the angle difference between the zero-sequence and positive-
sequence impedance required for zero-sequence compensation of the ground distance elements. The entered value is
the zero-sequence impedance angle minus the positive-sequence impedance angle. This setting is available on a per-
zone basis, enabling precise values for tapped, non-homologous, and series-compensated lines.
•
GND DIST Z1 ZOM/Z1 MAG:
The ground distance elements can be programmed to apply compensation for the zero-
sequence mutual coupling between parallel lines. If this compensation is required, the ground current from the parallel
line (3I_0) measured in the direction of the zone being compensated must be connected to the ground input CT of the
CT bank configured under the
DISTANCE SOURCE
. This setting specifies the ratio between the magnitudes of the mutual
837769A1.CDR
X
R
RE
A
C
H
RCA
DIR RCA
DIR COMP LIMIT
DIR COMP LIMIT
COMP LIMIT
COMP LIMIT
RGT BLD RCA
LFT BLD RCA
RGT BLD
-LFT BLD
"+" NON-HOMOGEN. ANG
"-" NON-HOMOGEN. ANG
837770A1.CDR
X
R
R
EAC
H
RCA
RGT BLD RCA
LFT BLD RCA
RGT BLD
-LFT BLD
RE
V
RE
ACH
REV REACH
RCA
COMP LIMIT
COMP LIMIT
"-" NON-HOMOGEN. ANG
"+" NON-HOMOGEN. ANG
COMP LIMIT
COMP LIMIT
"-" NON-HOMOGEN. ANG
"+" NON-HOMOGEN. ANG
Summary of Contents for UR T60
Page 10: ...x T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 14: ...xiv T60 Transformer Protection System GE Multilin 0 1 BATTERY DISPOSAL 0 BATTERY DISPOSAL 0 ...
Page 34: ...1 20 T60 Transformer Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 436: ...5 298 T60 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 678: ...C 30 T60 Transformer Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 688: ...D 10 T60 Transformer Protection System GE Multilin D 1 IEC 60870 5 104 PROTOCOL APPENDIX D D ...
Page 700: ...E 12 T60 Transformer Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...