Table of contents
Technical Manual 1
Distributed busbar protection REB500
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 ............................................................... 4
1.4.1 Symbols..................................................................................... 4
1.4.2 Document conventions............................................................... 4
Section 2 Signals.......................................................................6
2.1 Signal designations......................................................................... 6
2.2 Binary inputs on bay units............................................................... 8
2.3 Binary outputs on bay units........................................................... 13
2.4 Binary inputs on central unit.......................................................... 15
2.5 Binary outputs on central unit........................................................ 17
2.6 System blocking design ................................................................ 19
Section 3 System Settings........................................................23
3.1 Circuit breakers............................................................................. 23
3.2 Isolators........................................................................................ 25
3.3 Current transformers..................................................................... 25
3.4 Voltage transformers..................................................................... 27
3.5 System response.......................................................................... 28
3.5.1 System response to a differential current alarm........................ 28
3.5.2 System response to an isolator alarm....................................... 28
3.5.3 Isolator alarm delay.................................................................. 29
3.5.4 Remote trip impulse width........................................................ 29
3.6 Event memory............................................................................... 29
3.7 Time synchronization.................................................................... 30
3.7.1 Synchronizing using IRIG-B..................................................... 30
3.7.2 Synchronizing using PPS......................................................... 30
3.7.3 Synchronization by SNTP ........................................................ 31
3.7.4 Additional settings.................................................................... 31
Section 4 Busbar protection...................................................... 33
