ABB RELION 650 Series Applications Manual page 16

Table of contents
17.10.2 Setting guidelines..................................................................................................................... 252
17.11 Signal matrix for analog inputs SMAI........................................................................................ 252
17.11.1 Application..................................................................................................................................252
17.11.2 Frequency values....................................................................................................................... 252
17.11.3 Setting guidelines..................................................................................................................... 253
17.12 Test mode functionality TESTMODE..........................................................................................257
17.12.1 Application.................................................................................................................................. 257
17.12.1.1 IEC 61850 protocol test mode.............................................................................................258
17.12.2 Setting guidelines..................................................................................................................... 259
17.13 Time synchronization TIMESYNCHGEN.................................................................................... 259
17.13.1 Application..................................................................................................................................259
17.13.2 Setting guidelines..................................................................................................................... 260
17.13.2.1 System time............................................................................................................................ 260
17.13.2.2 Synchronization..................................................................................................................... 260
Section 18 Requirements.................................................................................................. 263
18.1 Current transformer requirements............................................................................................ 263
18.1.1 Current transformer classification........................................................................................ 263
18.1.2 Conditions.................................................................................................................................. 263
18.1.3 Fault current...............................................................................................................................264
18.1.4 Secondary wire resistance and additional load.................................................................. 264
18.1.5 General current transformer requirements......................................................................... 265
18.1.6 Rated equivalent secondary e.m.f. requirements............................................................... 265
18.1.6.1 Transformer differential protection.................................................................................. 265
18.1.6.2 Distance protection...............................................................................................................266
18.1.6.3 Breaker failure protection.................................................................................................... 267
18.1.6.4 Restricted earth fault protection (low impedance differential)...................................268
18.1.7 Current transformer requirements for CTs according to other standards.................. 270
18.1.7.1 Current transformers according to IEC 61869-2, class P, PR........................................ 270
18.1.7.2 Current transformers according to IEC 61869-2, class PX, PXR (and old IEC
60044-6, class TPS and old British Standard, class X).................................................... 271
18.1.7.3 Current transformers according to ANSI/IEEE................................................................ 271
18.2 Voltage transformer requirements............................................................................................ 272
18.3 SNTP server requirements............................................................................................................272
Section 19 Glossary............................................................................................................273
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Application manual