ABB RET670 Commissioning Manual page 15

10.16 Remote communication...................................................................................................................... 216
10.16.1 Binary signal transfer BinSignReceive, BinSignTransm............................................................216
10.17 Basic IED functions............................................................................................................................... 217
10.17.1 Parameter setting group handling SETGRPS..............................................................................217
10.17.1.1 Verifying the settings................................................................................................................... 217
10.17.1.2 Completing the test..................................................................................................................... 218
10.18 Exit test mode....................................................................................................................................... 218
Section 11 Primary injection testing.................................................................................... 219
11.1 Transformer Voltage Control ATCC.................................................................................................. 219
11.1.1 Load drop compensation function, LDC..................................................................................... 219
11.1.2 Voltage control of Parallel Transformers.................................................................................... 220
11.1.3 Minimum Circulating Current (MCC) method.............................................................................221
11.1.4 Master Follower (MF) method....................................................................................................... 222
11.1.5 Completing the test.........................................................................................................................223
Section 12 Checking the directionality................................................................................ 225
12.1 Overview................................................................................................................................................. 225
12.2 Testing the directionality of the distance protection...................................................................225
Section 13 Commissioning and maintenance of the fault clearing system.................... 227
13.1 Commissioning tests...........................................................................................................................227
13.2 Periodic maintenance tests................................................................................................................ 227
13.2.1 Visual inspection.............................................................................................................................. 228
13.2.2 Maintenance tests........................................................................................................................... 228
13.2.2.1 Preparation.................................................................................................................................... 228
13.2.2.2 Recording....................................................................................................................................... 229
13.2.2.3 Secondary injection......................................................................................................................229
13.2.2.4 Alarm test....................................................................................................................................... 229
13.2.2.5 Self supervision check..................................................................................................................229
13.2.2.6 Trip circuit check...........................................................................................................................229
13.2.2.7 Measurement of service currents..............................................................................................230
13.2.2.8 Restoring........................................................................................................................................ 230
Section 14 Troubleshooting...................................................................................................231
14.1 Checking the self supervision signals...............................................................................................231
14.1.1 Checking the self supervision function........................................................................................231
14.1.1.1 Determine the cause of an internal failure...............................................................................231
14.1.2 Self supervision HMI data............................................................................................................... 231
14.1.2.1 General IED status.........................................................................................................................231
14.2 Fault tracing...........................................................................................................................................232
14.2.1 Internal fault indications.................................................................................................................232
14.2.2 Using front-connected PC.............................................................................................................. 233
14.2.3 Diagnosing the IED status via the LHMI hint menu.................................................................. 235
Commissioning manual
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