Fleming, R. J.2024-07-152024-07-151966-02February 1https://hdl.handle.net/10388/15806This thesis describes parallel sets of tests which were carried out on a synchronous generator and on an analog computer simulation of it. The purpose of these tests was to establish the validity of the "Xad Base" per unit system for use in extensive machine studies. The "Xad Base" per unit system is a logical extension of the well known two-axis "Park" representation for a synchronous generator. It makes use of machine parameters which are readily available either from manufacture's design data or from measurements which can be easily made at the terminals of the machine. The pertinent synchronous machine theory, the procedure followed for measuring the machine parameters required in the analog simulation, and the tests conducted on the analog computer as ,well as the actual generator are detailed in this thesis. In general the results were found to be satisfactory.Thesis