Published Paper Details:

The principal information of power flow analysis is to find the magnitude and phase angle of voltage at each bus and the real and reactive power flowing in each transmission lines. Load flow study is a technique that provides basic calculation procedure in order to determine the characteristics of power system under steady state condition. In this thesis load flow study for 48-bus system is carried by using ETAP simulation software. A 400/220KV substation real time data is collected for the month of June -July 2011.The transient characteristic of power system is analyzed using short circuit analysis. A short circuit analysis is done to find the rating of circuit breakers. In this thesis symmetrical three-phase fault is considered. Short circuit analysis gives the DC offset current, circuit breaker making and breaking currents. The suitability of CB connected to existing system is observed using this technique. It is observed that CB near to fault trips the CB and protect the system from instability. In this thesis there is a scope to analysis the effect of unsymmetrical faults on power system during short circuit.