ABB Relion 670 series - Related ABB Product Documentation

Table of contents
Section 1 Introduction.......................................................................5
This manual........................................................................................ 5
Intended audience.............................................................................. 5
Product documentation.......................................................................6
Product documentation set............................................................6
Document revision history............................................................. 7
Related documents........................................................................8
Document symbols and conventions................................................10
Symbols.......................................................................................10
Document conventions................................................................ 10
Section 2 Telecommunication networks and line differential
protection........................................................................13
Overview...........................................................................................13
Telecommunication network types................................................... 14
Telecommunication networks with symmetric or fixed routes.......... 14
Maximum time deviation between internal clocks....................... 16
Setting the maximum time deviation...................................... 16
Reference clock deviation from the set maximum time
deviation................................................................................. 17
Longer route switching interruptions ...........................................18
Detecting accumulated time delay changes with echo timing..... 18
Section 3 Common time synchronization.......................................21
Design of the time system (clock synchronization)...........................21
Time synchronization using a built-in GPS receiver......................... 22
Time synchronization using IRIG-B.................................................. 24
Section 4 Analog and binary signal transfer for line differential
protection........................................................................27
Communication channels for line differential protection................... 27
Communication between channels via Line data
communication module.....................................................................28
Configuration of analog signals........................................................ 29
Configuration of analog inputs.....................................................30
Configuration of output signals.................................................... 31
Configuration of redundant channels................................................32
Link forwarding................................................................................. 35
Configurations with power transformers in the protected zone........ 36
Line differential protection L3CPDIF, L6CPDIF, LT3CPDIF,
LT6CPDIF....................................................................................36
Table of contents
Communication set-up 670/650 series 2.2 1
Application Guide