17.10.2 Setting guidelines..................................................................................................................... 25217.11 Signal matrix for analog inputs SMAI........................................................................................ 25217.11.1 Application..................................................................................................................................25217.11.2 Frequency values....................................................................................................................... 25217.11.3 Setting guidelines..................................................................................................................... 25317.12 Test mode functionality TESTMODE..........................................................................................25717.12.1 Application.................................................................................................................................. 25717.12.1.1 IEC 61850 protocol test mode.............................................................................................25817.12.2 Setting guidelines..................................................................................................................... 25917.13 Time synchronization TIMESYNCHGEN.................................................................................... 25917.13.1 Application..................................................................................................................................25917.13.2 Setting guidelines..................................................................................................................... 26017.13.2.1 System time............................................................................................................................ 26017.13.2.2 Synchronization..................................................................................................................... 260Section 18 Requirements.................................................................................................. 26318.1 Current transformer requirements............................................................................................ 26318.1.1 Current transformer classification........................................................................................ 26318.1.2 Conditions.................................................................................................................................. 26318.1.3 Fault current...............................................................................................................................26418.1.4 Secondary wire resistance and additional load.................................................................. 26418.1.5 General current transformer requirements......................................................................... 26518.1.6 Rated equivalent secondary e.m.f. requirements............................................................... 26518.1.6.1 Transformer differential protection.................................................................................. 26518.1.6.2 Distance protection...............................................................................................................26618.1.6.3 Breaker failure protection.................................................................................................... 26718.1.6.4 Restricted earth fault protection (low impedance differential)...................................26818.1.7 Current transformer requirements for CTs according to other standards.................. 27018.1.7.1 Current transformers according to IEC 61869-2, class P, PR........................................ 27018.1.7.2 Current transformers according to IEC 61869-2, class PX, PXR (and old IEC60044-6, class TPS and old British Standard, class X).................................................... 27118.1.7.3 Current transformers according to ANSI/IEEE................................................................ 27118.2 Voltage transformer requirements............................................................................................ 27218.3 SNTP server requirements............................................................................................................272Section 19 Glossary............................................................................................................273Table of contents10Application manual
