ABB RELION REB500 Technical Manual page 8

Table of contents
5.1.6.3
5.1.6.4
5.1.6.5
5.1.6.6
5.1.6.7
5.1.6.8
5.1.6.9
5.1.7 Technical description.............................................................................................................. 52
5.1.7.1
5.1.7.2
5.1.7.3
5.1.7.4
5.1.7.5
5.2 Definite time over- and undercurrent protection 51 (OCDT).............................................91
5.2.1 Mode of operation....................................................................................................................91
5.2.2 Features......................................................................................................................................91
5.2.3 Inputs and outputs...................................................................................................................91
5.2.3.1
5.2.3.2
5.2.3.3
5.2.3.4
5.2.4 Function settings..................................................................................................................... 92
5.2.5 Parameters................................................................................................................................ 92
5.2.6 Configuration............................................................................................................................92
5.3 Inverse time overcurrent protection 51 (OC)........................................................................94
5.3.1 Mode of operation................................................................................................................... 94
5.3.2 Features..................................................................................................................................... 94
5.3.3 Inputs and outputs.................................................................................................................. 95
5.3.3.1
5.3.3.2
5.3.3.3
5.3.3.4
5.3.4 Function settings..................................................................................................................... 95
5.3.5 Parameters................................................................................................................................ 96
5.3.6 Configuration............................................................................................................................96
5.4 Directional overcurrent definite time protection 67 (DIROCDT)......................................99
5.4.1 Mode of operation................................................................................................................... 99
5.4.2 Features..................................................................................................................................... 99
5.4.3 Inputs and outputs.................................................................................................................. 99
5.4.3.1
5.4.3.2
5.4.3.3
5.4.3.4
5.4.4 Function settings...................................................................................................................100
5.4.5 Parameters.............................................................................................................................. 100
5.4.6 Configuration.......................................................................................................................... 101
2
Measurement....................................................................................................................... 41
Definitive zone (Def).......................................................................................................... 47
Backup overcurrent unit (O/C Backup Protection)..................................................... 48
VT supervision.....................................................................................................................48
Tripping logic...................................................................................................................... 49
Power-swing blocking....................................................................................................... 50
Supplementary information for binary inputs............................................................. 50
Starters................................................................................................................................. 52
Distance measurement..................................................................................................... 58
VT supervision.....................................................................................................................64
Backup overcurrent function (O/C Backup)..................................................................68
System logic........................................................................................................................ 68
CT/VT inputs........................................................................................................................91
Binary inputs........................................................................................................................ 91
Binary outputs..................................................................................................................... 91
Measurements..................................................................................................................... 91
CT/VT inputs....................................................................................................................... 95
Binary inputs........................................................................................................................95
Binary outputs.....................................................................................................................95
Measurements.....................................................................................................................95
CT/VT inputs....................................................................................................................... 99
Binary inputs........................................................................................................................99
Binary outputs.....................................................................................................................99
Measurements.................................................................................................................... 99
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