5-162
G60 Generator Protection System
GE Multilin
5.6 GROUPED ELEMENTS
5 SETTINGS
5
The phase mho distance function uses a dynamic 100% memory-polarized mho characteristic with additional reactance,
directional, and overcurrent supervising characteristics. When set to “Non-directional”, the mho function becomes an offset
mho with the reverse reach controlled independently from the forward reach, and all the directional characteristics
removed.
Each phase distance zone is configured individually through its own setting menu. All of the settings can be independently
modified for each of the zones except:
1.
The
SIGNAL SOURCE
setting (common for the distance elements of all zones as entered under
SETTINGS
GROUPED
ELEMENTS
SETTING GROUP 1(6)
DISTANCE
).
2.
The
MEMORY DURATION
setting (common for the distance elements of all zones as entered under
SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
DISTANCE
).
The common distance settings described earlier must be properly chosen for correct operation of the phase distance ele-
ments. Additional details may be found in chapter 8:
Theory of operation
.
Ensure that the Phase VT Secondary Voltage setting (see the
SETTINGS
SYSTEM SETUP
AC
INPUTS
VOLTAGE BANK
menu) is set correctly to prevent improper operation of associated mem-
ory action.
•
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 for-
ward reach impedance defined by the
PHS DIST Z1 REACH
and
PHS DIST Z1 RCA
settings, and the reverse reach imped-
ance defined by
PHS DIST Z1 REV REACH
and
PHS DIST Z1 REV REACH RCA
as illustrated below.
Figure 5–66: DIRECTIONAL MHO DISTANCE CHARACTERISTIC
MESSAGE
PHS DIST Z1 BLK:
Off
Range: FlexLogic operand
MESSAGE
PHS DIST Z1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
PHS DIST Z1
EVENTS: Disabled
Range: Disabled, Enabled
NOTICE
837720A1.CDR
X
R
R
EAC
H
RCA
DIR RCA
DIR COMP LIMIT
DIR COMP LIMIT
COMP LIMIT
Summary of Contents for Multilin g60
Page 10: ...x G60 Generator Protection System GE Multilin TABLE OF CONTENTS INDEX ...
Page 32: ...1 22 G60 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 160: ...4 30 G60 Generator Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 486: ...5 326 G60 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 518: ...6 32 G60 Generator Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 532: ...7 14 G60 Generator Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 748: ...D 10 G60 Generator Protection System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 760: ...E 12 G60 Generator Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...