ABB RER670 - Page 21

General current transformer requirements................................ 479
Rated equivalent secondary e.m.f. requirements......................
479
Breaker failure protection..................................................... 479
Restricted earth fault protection (low impedance
differential)............................................................................480
Current transformer requirements for CTs according to
other standards..........................................................................483
Current transformers according to IEC 61869-2,
class P, PR...........................................................................483
Current transformers according to IEC 61869-2, class
PX, PXR (and old IEC 60044-6, class TPS
and old British Standard, class X)........................................ 483
Current transformers according to ANSI/IEEE..................... 483
Voltage transformer requirements.................................................. 484
SNTP server requirements............................................................. 485
PTP requirements...........................................................................485
Sample specification of communication requirements for the
protection and control terminals in digital telecommunication
networks......................................................................................... 485
IEC/UCA 61850-9-2LE Merging unit requirements ....................... 486
Section 23 Glossary....................................................................... 489
Table of contents
Railway application RER670 2.2 IEC 15
Application manual