ABB REG670 - Page 26

Process bus IEC/UCA 61850-9-2LE synchronization.......... 742
Section 24 Requirements...............................................................743
Current transformer requirements.................................................. 743
Current transformer basic classification and requirements....... 743
Conditions..................................................................................745
Fault current.............................................................................. 746
Secondary wire resistance and additional load......................... 746
General current transformer requirements................................ 746
Rated equivalent secondary e.m.f. requirements...................... 747
Guide for calculation of CT for generator differential
protection..............................................................................747
Transformer differential protection....................................... 753
Breaker failure protection..................................................... 754
Restricted earth fault protection (low impedance differential)754
Current transformer requirements for CTs according to other
standards...................................................................................757
Current transformers according to IEC 61869-2, class P, PR757
Current transformers according to IEC 61869-2, class PX,
PXR (and old IEC 60044-6, class TPS
and old British Standard, class X)........................................ 757
Current transformers according to ANSI/IEEE..................... 758
Voltage transformer requirements.................................................. 758
SNTP server requirements............................................................. 759
PTP requirements...........................................................................759
Sample specification of communication requirements for the
protection and control terminals in digital telecommunication
networks......................................................................................... 759
IEC/UCA 61850-9-2LE Merging unit requirements ....................... 760
Section 25 Glossary....................................................................... 763
Table of contents
20 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual