Studies On Fault Current Calculation And Analysis In Distribution Networks

Distribution network supplies electric power for customers directly, Compare to the power transmission network,distribution networks are low voltaged and automaticlly.The wastage is great.Distribution network in good conditions or not is very important not only for the customers but also for the Power Network.Calculation and analysis on distribution network is very important.Accompanied by the enlargement of distribution network's scale, more and more relays are used in Power Systems.The relays has on a daily broadening scale and good quality.So the management of protection has also grow in pace with the relays.The management of protection's key work is.This work introduced the short circuit faults calculation and analysis of distribution network,approach this subject from different angles.Before the power system is in motion or working parameters' changing, we all need answer the short circuit current by short circuit current calculation to check key parameters of the protective device.Accurate master the he fundamental rules and methods of short circuit current is very important for protection managerial personnel.All the work are very important to the Power Grid company.