Fremtidig systemjording av regionalnettet i Agder

2018

Masteroppgave fornybar energi ENE500 - Universitetet i Agder 2018 System earthing describes how the neutral of a transformer is connected to ground. If a ground fault occurs, the system earthing is to detect and manage the fault current in such a way that it does not inflict damage on humans or the grid. An increasing fault current in compensated earthed networks have recently started to cause concerns in the Norwegian regional grid. Grid expansions, upgrades in operating voltage and increased amount of cables are factors that have made the fault current rise in many parts of the regional grid. Due to this, a review of possible system earthing designs has been desired, to insure a future-or…