Recent SemestersSpring 2027, Winter 2027, Fall 2026, Spring 2026Class Size16–21 studentsCredits2 Transfers ToNot transferableDescriptionPrerequisite: ET 120 with a minimum grade of "C". Principles of transformers are discussed and applied to single phase transformers, three phase transformers, wye and delta connections, and isolation transformers. This course develops competency in the understanding and application of the National Electrical Code (NEC) as it applies to transformer installations. Calculations for turns ratio, voltage ratio, and current ratio are used to determine circuit relationships between voltage and current. (30-0)Usually HeldMon 7:00pm–8:55pm, Tue Thu 8:00pm–9:55pm, Mon Wed 2:00pm–3:55pm 