GE Multilin
L30 Line Current Differential System
5-141
5 SETTINGS
5.6 GROUPED ELEMENTS
5
•
CURRENT DIFF DTT
: This setting enables and disables the sending of a DTT by the current differential element on
per single-phase basis to remote devices. To allow the L30 to restart from master-master to master-slave mode (very
important on three-terminal applications),
CURR DIFF DTT
must be set to “Enabled”.
•
CURRENT DIFF KEY DTT
: This setting selects an additional protection element (besides the current differential ele-
ment; for example, distance element or breaker failure) which keys the DTT on a per three-phase basis.
For the current differential element to function properly, it is imperative that all L30 devices on the pro-
tected line have exactly identical firmware revisions. For example, revision 5.62 in only compatible with
5.62, not 5.61 or 5.63.
NOTE
Summary of Contents for L30
Page 10: ...x L30 Line Current Differential System GE Multilin TABLE OF CONTENTS ...
Page 30: ...1 20 L30 Line Current Differential System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 370: ...5 244 L30 Line Current Differential System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 464: ...A 10 L30 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 600: ...C 30 L30 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 610: ...D 10 L30 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 622: ...E 12 L30 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 634: ...F 12 L30 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 644: ...x L30 Line Current Differential System GE Multilin INDEX ...