ABSTRACT
This chapter discusses all the parameters of a single-line diagram (SLD) describing a power system, from the generator end to the load end, inclusive of generators, transformers, transmission lines, motors and loads. The network calculations are essential for a working power system to maintain reliability and stability in delivering power from one point to another in the SLD. To solve this problem we have to create source equivalence for the ease of network analysis. This entails the substitution of a source of constant current in parallel with impedance for a constant electromagnetic force source in series with impedance. Matrix partitioning is a necessary tool for solving problems with dependent node equations in a given power system SLD. The preceding mechanics are used for node elimination using matrix algebra. The chapter explains that the superposition theorem is regularly done because voltage sources are short-circuited and current sources are opened as usual.
