Small Induction Generator and Synchronous Generator Constants for DSG Isolation Studies

Developing the constants for small induction generator and synchronous generator application studies in Distribution System Generation (DSG) applications can quickly exceed time and budget constraints. The development of reliable constants for induction machines can be aided by suggested full-load calculations. If acquired data seem inconsistent, a method to adjust the constants using a small computer is discussed. Finally, constants for eleven example machines are presented. Synchronous generator constants may also be difficult to acquire especially if subtransient detail is needed. Excitation and governor control system data is rarely available when required. The paper discusses procedures to check the data and presents four examples.