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Panel boards, frequency drives, and transformers are some of the key components inside electrical systems, and understanding their fundamentals is critical to anyone in the electrical trade. In this course, learn about all three types of equipment, find out what variants of each you'll encounter, and learn how to work with them. Veteran electrician Christopher Randall also covers basic math as it's used in electrical calculations. Upon wrapping up this course, you'll have a foundational understanding of some of the most essential pieces of equipment you'll encounter on the job.