vi D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
5.6 FlexLogic.............................................................................................................. 5-164
5.6.1 FlexLogic operands........................................................................................................ 5-164
5.6.2 FlexLogic rules.................................................................................................................. 5-177
5.6.3 FlexLogic evaluation...................................................................................................... 5-177
5.6.4 FlexLogic equation editor............................................................................................ 5-182
5.6.5 FlexLogic timers............................................................................................................... 5-182
5.6.6 FlexElements ..................................................................................................................... 5-182
5.6.7 Non-volatile latches.......................................................................................................5-187
5.7 Grouped elements............................................................................................. 5-188
5.7.1 Overview ............................................................................................................................. 5-188
5.7.2 Setting group 1................................................................................................................. 5-188
5.7.3 Line pickup ......................................................................................................................... 5-189
5.7.4 Distance............................................................................................................................... 5-191
5.7.5 Power swing detect (ANSI 68).................................................................................... 5-209
5.7.6 Load encroachment ...................................................................................................... 5-218
5.7.7 Phase current ................................................................................................................... 5-219
5.7.8 Neutral current................................................................................................................. 5-231
5.7.9 Wattmetric ground fault.............................................................................................. 5-239
5.7.10 Ground current ................................................................................................................ 5-243
5.7.11 Negative sequence current........................................................................................ 5-246
5.7.12 Voltage elements ............................................................................................................ 5-252
5.8 Control elements ............................................................................................... 5-259
5.8.1 Overview ............................................................................................................................. 5-259
5.8.2 Trip bus ................................................................................................................................ 5-259
5.8.3 Setting groups .................................................................................................................. 5-261
5.8.4 Selector switch................................................................................................................. 5-262
5.8.5 Underfrequency (ANSI 81U)........................................................................................ 5-269
5.8.6 Frequency rate of change (ANSI 81R).................................................................... 5-270
5.8.7 Synchrocheck (ANSI 25) ............................................................................................... 5-272
5.8.8 Autoreclose (ANSI 79).................................................................................................... 5-277
5.8.9 Digital elements............................................................................................................... 5-283
5.8.10 Digital counters................................................................................................................ 5-286
5.8.11 Monitoring elements ..................................................................................................... 5-288
5.9 Inputs/outputs................................................................................................... 5-302
5.9.1 Contact inputs.................................................................................................................. 5-302
5.9.2 Virtual inputs ..................................................................................................................... 5-304
5.9.3 Contact outputs............................................................................................................... 5-305
5.9.4 Virtual outputs.................................................................................................................. 5-308
5.9.5 Resetting ............................................................................................................................. 5-308
5.9.6 Direct inputs and outputs ........................................................................................... 5-309
5.9.7 Teleprotection................................................................................................................... 5-313
5.10 Transducer inputs/outputs.............................................................................. 5-315
5.10.1 DCmA inputs...................................................................................................................... 5-315
5.10.2 RTD inputs .......................................................................................................................... 5-316
5.10.3 DCmA outputs .................................................................................................................. 5-317
5.11 Testing................................................................................................................. 5-321
5.11.1 Test mode function ........................................................................................................5-321
5.11.2 Test mode forcing........................................................................................................... 5-321
5.11.3 Force contact inputs ..................................................................................................... 5-322
5.11.4 Force contact outputs .................................................................................................. 5-322
6 ACTUAL VALUES 6.1 Actual values menu................................................................................................6-1
6.2 Front panel...............................................................................................................6-3
6.2.1 Enhanced and standard front panels .........................................................................6-3
6.2.2 Graphical front panel..........................................................................................................6-4
To Next Page
Loading...
Need help?
General
