ABSTRACT
The load flow analysis is performed to present the characteristic of a power system network under stable or unstable conditions for evaluating the various operating states of an existing power system. Power system engineers always rely on effective load flow solutions to plan efficient and reliable power networks with flexibility in power exchange activity. After all the generated power has to be transmitted and distributed to the consumers with specified quality and reliability as and when consumers need. The primary importance is given to this chapter on load flow simulator for collecting various data obtained after precise solutions. Electrical Transient Analyser Program (ETAP) allows in choosing from several different methods in order to accomplish the best calculation efficiency and accuracy. ETAP analyser computes bus voltages, currents, branch power factors, and power flows throughout the entire electrical network. This chapter presents detailed power flow monitoring of the Khagaria 132/33 kV sub-station for further analysis using built in intelligent graphics of ETAP. Hence, in connection to operation and control of the said sub-station, the load flow solution has been analysed for loss minimisation, maintaining stable voltage profile within prescribed tolerance, economic system operation, interconnection of power networks, meeting increase load demand, etc. The analysis of the proposed simulation result is used to address the problem of voltage fluctuation and poor power quality. The performance indexing of voltage and power factors of this sub-station 200puts effective compensation implication, optimal operation identification of capacitors/ inductors sizing and sitting.
