Table of contents
Section 1 Introduction.................................................................................................... 3
1.1 This manual....................................................................................................................................3
1.2 Intended audience........................................................................................................................3
1.3 Product documentation.............................................................................................................. 3
1.4 Symbols and conventions........................................................................................................... 3
1.4.1 Symbols........................................................................................................................................ 3
1.4.2 Document conventions............................................................................................................. 4
Section 2 Safety information.........................................................................................5
Section 3 Signals..............................................................................................................7
3.1 Signal designations......................................................................................................................7
3.2 Binary inputs on bay units.......................................................................................................... 8
3.3 Binary outputs on bay units......................................................................................................13
3.4 Binary inputs on central unit.................................................................................................... 16
3.5 Binary outputs on central unit..................................................................................................17
3.6 System blocking design............................................................................................................ 19
3.7 Combined tripping commands............................................................................................... 25
3.7.1 Definition................................................................................................................................... 25
3.7.2 Tripping commands automatically combined by the system.........................................26
3.7.3 User defined combined tripping (integration of bay protection) .................................26
Section 4 System settings............................................................................................29
4.1 Circuit breakers.......................................................................................................................... 29
4.2 Isolators....................................................................................................................................... 30
4.3 Current transformers.................................................................................................................31
4.4 Voltage transformers................................................................................................................ 32
4.5 System response........................................................................................................................ 33
4.5.1 System response to a differential current alarm...............................................................33
4.5.2 System response to an isolator alarm................................................................................. 33
4.5.3 Isolator alarm delay................................................................................................................. 34
4.5.4 Remote trip impulse width.....................................................................................................34
4.6 Event memory............................................................................................................................. 34
4.7 Time synchronization................................................................................................................ 35
4.7.1 Synchronizing using IRIG-B.................................................................................................... 35
4.7.2 Synchronizing using PPS.........................................................................................................35
4.7.3 Synchronization by SNTP........................................................................................................35
4.7.4 Additional settings.................................................................................................................. 36
4.7.4.1 Time zone correction......................................................................................................... 36
4.7.4.2 Daylight saving time.......................................................................................................... 36
Section 5 Busbar protection........................................................................................ 39
Table of contents
Distributed busbar protection REB500 1
Technical manual
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