Table Of Contents - Hitachi 670 Series Application Manual
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Also See for 670 Series:
- Applications manual (438 pages) ,
- Commissioning manual (284 pages) ,
- Product manual (192 pages)
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1MRK505382-UEN Rev. K
Table of contents
Section 1
Introduction....................................................................................................5
1.1
This manual...........................................................................................................................5
1.2
Intended audience.................................................................................................................5
1.3
Product documentation......................................................................................................... 5
1.3.1
Product documentation set..................................................................................................5
1.3.2
Document revision history................................................................................................... 6
1.3.3
Related documents............................................................................................................. 7
1.4
Document symbols and conventions.....................................................................................9
1.4.1
Symbols...............................................................................................................................9
1.4.2
Document conventions........................................................................................................9
Section 2
Telecommunication networks and line differential protection................ 11
2.1
Overview..............................................................................................................................11
2.2
Telecommunication network types.......................................................................................11
2.3
Telecommunication networks with symmetric or fixed routes..............................................12
2.3.1
Maximum time deviation between internal clocks............................................................. 13
2.3.1.1
2.3.1.2
2.3.2
Longer route switching interruptions ................................................................................ 15
2.3.3
Detecting accumulated time delay changes with echo timing........................................... 15
Section 3
Common time synchronization.................................................................. 17
3.1
Design of the time system (clock synchronization)............................................................. 17
3.2
Time synchronization using a built-in GPS receiver............................................................18
3.3
Time synchronization using IRIG-B.....................................................................................19
Section 4
4.1
Communication channels for line differential protection......................................................21
4.2
Communication between channels via Line data communication module.......................... 22
4.3
Configuration of analog signals........................................................................................... 22
4.3.1
Configuration of analog inputs...........................................................................................23
4.3.2
Configuration of output signals..........................................................................................24
4.4
Configuration of redundant channels.................................................................................. 25
4.5
Link forward.........................................................................................................................27
4.5.1
Application configuration ACT........................................................................................... 28
4.6
Configurations with power transformers in the protected zone........................................... 29
4.6.1
Line differential protection L3CPDIF, L6CPDIF, LT3CPDIF, LT6CPDIF............................ 29
4.6.1.1
4.6.2
Line differential protection L4CPDIF................................................................................. 31
4.6.2.1
4.7
Setting examples.................................................................................................................32
4.7.1
Line differential protection L3CPDIF, L6CPDIF, LT3CPDIF, LT6CPDIF............................ 32
4.7.2
Line differential protection L4CPDIF................................................................................. 41
Communication set-up, 670/650 series
Application Guide
Setting the maximum time deviation............................................................................ 13
Reference clock deviation from the set maximum time deviation................................ 14
Power transformers in the protected zone................................................................... 29
Possible configurations................................................................................................ 31
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