Rated equivalent secondary e.m.f. requirements...................... 427Line differential protection.................................................... 427Distance protection...............................................................429Breaker failure protection..................................................... 430Current transformer requirements for CTs according toother standards..........................................................................431Current transformers according to IEC 61869-2,class P, PR...........................................................................431Current transformers according to IEC 61869-2, classPX, PXR (and old IEC 60044-6, class TPSand old British Standard, class X)........................................ 431Current transformers according to ANSI/IEEE..................... 431Voltage transformer requirements.................................................. 432SNTP server requirements............................................................. 433PTP requirements...........................................................................433Sample specification of communication requirements for theprotection and control terminals in digital telecommunicationnetworks......................................................................................... 433IEC/UCA 61850-9-2LE Merging unit requirements ....................... 434Section 23 Glossary....................................................................... 437Table of contentsLine differential protection RED650 2.2 IEC 15Application manual
