html{display:none} PROT 405: Industrial Power System Protection | Schweitzer Engineering Laboratories

PROT 405: Industrial Power System Protection


Engineers who need a comprehensive understanding of the challenges and solutions for protecting industrial power systems should attend this course.

PROT 405 provides an overview of the principles and schemes for protecting medium-voltage overhead lines and cables, transformers, buses, generators, and motors, and it introduces the fundamentals of wide-area protection in industrial power systems. The course provides basic guidelines for relay application and settings calculation. It also reviews power system faults, industrial power system grounding methods, and instrument transformers.


Day 1
  • Power System Faults
  • Introduction to Industrial Power Systems
  • Industrial Power System Protection Fundamentals
Day 2
  • Instrument Transformers
  • Line Overcurrent Protection
  • Class Exercise: Overcurrent Protection Coordination
  • Line Directional Overcurrent, Distance, and Pilot Protection
Day 3
  • Transformer Protection
  • Class Exercise: Transformer Differential Protection
  • Class Exercise: Transformer Overcurrent Protection
  • Bus Protection
  • Class Exercise: Bus Protection
Day 4
  • Generator Protection
  • Class Exercise: Generator Protection
  • Motor Protection
  • Class Exercise: Motor Protection
  • Special Topics in Industrial Power Systems

Note: This course teaches fundamental knowledge but does not provide hands-on experience with SEL relays.

Course Objectives

At the conclusion of this course, students can:

  • Identify the challenges and solutions to industrial power system protection problems
  • Select the appropriate protection schemes for various applications
  • Analyze power system faults for balanced and unbalanced conditions using symmetrical components
  • Explain industrial power system topology and grounding methods
  • Describe current and voltage transformers and their impact on protection scheme performance
  • Identify, apply, and calculate settings for overcurrent devices in industrial power systems
  • Describe directional overcurrent, distance, and pilot protection schemes
  • Identify, apply, and calculate settings for transformer and bus protection schemes
  • Identify, apply, and calculate settings for generator and motor protection schemes
  • Identify and apply wide-area protection schemes for industrial power systems
Course Information
Course Base Fees: $USD2,300*

CEUs: 2.8
Available Courses
Baton Rouge, Louisiana, USA
February 10–13, 2020

Renaissance Baton Rouge Hotel
7000 Bluebonnet Blvd
Baton Rouge, Louisiana 70810

Additional Information:

8:00am-5:00pm each day

Recommended Accommodations:

Renaissance Baton Rouge Hotel
7000 Bluebonnet Blvd
Baton Rouge, LA 70810
(225) 215-7000

A room block has been set up at this location. To secure the SEL University rate of $149.00 + tax/night, call the hotel's reservations line at (866) 469-5448. Reservations must be received by the Renaissance Baton Rouge Hotel by 1/15/2020. 

Cancellations must be received within 24 hours prior to arrival or 1 night room and tax will be assessed. 

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Course Requirements


A degree in electrical engineering or equivalent experience is required. In addition, PROT 405 requires completion of PROT 401: Protecting Power Systems for Engineers or the following:

  • A basic knowledge of power systems and power system protection
  • Familiarity with transformer, generator, and induction motor characteristics
  • A working knowledge of ac three-phase electrical circuits, trigonometry, basic calculus, complex numbers, and phasor concepts

Recommended reading:

Course Preparation

Please check the General Course Information page for what you should bring to class.