Fundamentals Charles J. Mozina and Jonathan D. Gardell Abstract ? This introductory chapter of the tutorial provides basic background information to better understand the chapters that follow. It is intended to provide information for the less experienced engineer. This chapter describes the electrical workings and dynamics of synchronous generators and their connections to the power system. Generator performance under short-circuit conditions is also described, along with generator grounding practices. In addition, some of the most misunderstood aspects of generator protection are also addressed. Finally, the IEEE C37 guides that relate to generator protection are enumerated along with the definitions of relay device numbers. Please note: This file requires you to save the file on your computer or device for viewing. A message may appear saying, "Multiple files are bound together in this PDF Package." If this message appears, simply click the Adobe download button in Firefox, click the save icon in Chrome, or click cancel in IE.