LAC 28:CV.1727. Transformers

A. Function, Operation, and Characteristics of Transformers: 1. electrical principles involved in transformer operation; 2. transformer classifications and applications; 3. transformer losses; 4. ratios for voltage and amperage with respect to turns. B. Selection and Installation of Transformers: 1. nameplate information; 2. techniques for sizing transformers (one and three phase); 3. determining if given transformer meets voltage, current, and impedance requirements; 4. calculating voltages and currents for load and windings; 5. determining whether to use wye or delta wiring schemes; 6. steps for receiving and preparing transformer for installation; 7. necessary tests to assure proper operation; 8. proper techniques for connecting power and load conductors; 9. methods for determining proper types and values of electrical protective devices; 10. proper grounding procedures. C. Distribution Systems: 1. functions, operations, and characteristics of various types of distribution systems; 2. criteria for selecting particular type of distribution system.