Distribution Automation Handbook

ABB

Distribution Automation Handbook

Publicado: 11 de outubro de 2022 · Categoria: Cadernos técnicos

Deste documento

Distribution Automation Handbook Section 8.2 Relay Coordination Distribution Automation Handbook (prototype) 1MRS757285 Power System Protection, 8.2 Relay Coordination 2 Contents 8.2 Relay Coordination and Selective Protection .................................................................................... 3 8.2.1 Introduction .............................................................................................................................. 3 8.2.2 Time-graded Protection ............................................................................................................ 3 8.2.3 Time- and Current-graded Protection .................................................................................... 11 8.2.4 Time- and direction-graded protection .................................................................................. 12 8.2.5 Current- and Impedance-graded Protection .......................................................................... 15 8.2.6 Interlocking-based Protection ................................................................................................ 17 8.2.7 Differential Protection ............................................................................................................ 19 8.2.7.1 8.2.7.2 LOW-IMPEDANCE PRINCIPLE ............................................................................................................................................... 20 HIGH-IMPEDANCE PRINCIPLE...