This course is intended for utility and industrial transmission protection engineers and power system consultants who want to understand the line current differential (87L) functionality in the SEL-411L Line Differential Protection, Automation, and Control System in detail.
APP 411L is an advanced hands-on course that builds on the introductory configuration and protection principles taught in CBT 101, CBT 421, and APP 421 and on the logic configuration principles taught in CBT 104. Students in APP 411L will complete hands-on exercises to configure differential protection and advanced logic. SELogic, distance elements, directional elements, etc., are not covered in this course; students interested in learning about all functions other than 87L should take APP 421 or APP 411L in conjunction with APP 421.
At the conclusion of this course, students can:
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Before you attend this class, you must meet the following requirements:
Please check the General Course Information page for what you should bring to class. In addition, please make sure that the laptop you bring to class has the following software/features: