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Relaying and System Protection for Electric Utilities Volume II: Instrument Transformers

Lee Layton, PE

This 2-hour course is the second in a series of five courses on the design of relaying and system protection programs for electric utilities. These courses describe the fundamental concepts of electric system protection and provides detailed examples of the application of relaying. In most cases, the material is based on electromechanical relays to give the reader a strong understanding of current relaying practices.

This course explains the function, design characteristics, and operating principles of instrument transformers. Current transformers (CTs), potential transformers (PTs), and capacitive potential devices are covered.

This series is divided into five separate courses. Each course essentially stands on its own and the courses do not necessarily need to be taken in the order listed. However, for a thorough understanding it makes sense to take the courses are presented.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.