Interactive network planning and analysis on a personal computer

Features of POSCODAM, a power system planning and analysis software package, are described. POSCODAM (power system computation and data management) is an integrated package of three program systems, namely, POSDAM (power system data management), POSCO (power system computation), which consists of load-flow and short-circuit analysis modules, and POSGRAPH (power system graph), for graphical input and output of network topologies and computed results. During the past six years, this package has been used for applications such as optimization of energy transmission in regional electric networks, determination of reactive power compensation, investigation of system and equipment overloads, determination of system short-circuit power levels, dimensioning of switchgear and protection coordination, and grounding of power system neutrals.<>