SubstationU

Class 3 of 8: Relay Technologies and Reading Relay Documentation. This self-paced class covers electromechanical, solid-state and microprocessor relays; targets, seal-in and self-test alarms; reading one-line, three-line, DC elementary and wiring diagrams; setting sheets and secondary/primary conversion, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course, and the recommended order is Class 1 to Class 8, but you can take them in any order.

Class 5 of 8: Introduction to Differential, Distance, Directional, Voltage and Frequency Protection. This self-paced class covers differential (87) with slope and harmonic restraint, distance (21) zones, directional (67/32), voltage (27/59/47/60) and frequency (81) protection, and what technicians check for each, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course, and the recommended order is Class 1 to Class 8, but you can take them in any order.

Class 7 of 8: Safe Isolation for Relay Work. This self-paced class covers relay-work hazards, NFPA 70E job planning, the test switch isolation sequence, CT shorting, VT backfeed prevention, secondary injection safety, and restoration to service, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course, and the recommended order is Class 1 to Class 8, but you can take them in any order.

An optional 40-question review covering all eight Level 1 classes. You need 80% (32 of 40) to pass, and you can retake the quiz as many times as you need until you pass.

The questions are drawn from the class question banks. Continuing education credit: 0 (none awarded yet).

Optional review for the Level 1 series, Intro to Protective Relaying (PR-101 to PR-108). Recommended order: PR-101 through PR-109; classes may be taken in any order.

Class 2 of 8: Symmetrical Components and Fault Calculations for Relay Settings. This self-paced class covers per-unit systems, symmetrical components, sequence networks and connections, and worked calculations of three-phase, line-to-line and single line-to-ground fault currents used for relay settings, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Intermediate Protective Relaying (Level 2 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 2 of 8 in the Level 2 series, Intermediate Protective Relaying (PR-201 to PR-208). Recommended order: PR-201 through PR-209; classes may be taken in any order. Level 1 (PR-101 to PR-109) is recommended preparation.

Class 4 of 8: Overcurrent Coordination: Phase and Ground (50/51/50N/51N), Fuses, Reclosers and CTI. This self-paced class covers IEEE inverse-time curve equations, a step-by-step overcurrent settings method, CTI calculation, ground overcurrent, and coordination with fuses, reclosers and transformers, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Intermediate Protective Relaying (Level 2 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 4 of 8 in the Level 2 series, Intermediate Protective Relaying (PR-201 to PR-208). Recommended order: PR-201 through PR-209; classes may be taken in any order. Level 1 (PR-101 to PR-109) is recommended preparation.

Class 6 of 8: Bus, Motor and Generator Protection. This self-paced class covers high- and low-impedance bus differential, motor protection settings, and generator protection functions with worked 59N, 32 and 46 calculations, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Intermediate Protective Relaying (Level 2 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 6 of 8 in the Level 2 series, Intermediate Protective Relaying (PR-201 to PR-208). Recommended order: PR-201 through PR-209; classes may be taken in any order. Level 1 (PR-101 to PR-109) is recommended preparation.

Class 8 of 8: Relay Testing and Commissioning: Secondary Injection, End-to-End Testing, IEC 61850 and Event Analysis. This self-paced class covers secondary injection calculations for overcurrent, distance and differential elements, scheme and end-to-end tests, IEC 61850 GOOSE and Sampled Values testing, and COMTRADE event analysis, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Intermediate Protective Relaying (Level 2 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 8 of 8 in the Level 2 series, Intermediate Protective Relaying (PR-201 to PR-208). Recommended order: PR-201 through PR-209; classes may be taken in any order. Level 1 (PR-101 to PR-109) is recommended preparation.

Class 1 of 8: Relay Test Planning: Reading Settings Files, Logic and Building a Test Plan. This self-paced class covers turning a settings file into a test scope, reading programmable logic and trip matrices, choosing test methods (steady state, ramp, pulse, state sequence), acceptance criteria, isolation and test switches, and writing a test plan, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Advanced Protective Relaying (Level 3 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 1 of 8 in the Level 3 series, Advanced Protective Relaying (PR-301 to PR-308). Recommended order: PR-301 through PR-309; classes may be taken in any order. Level 2 is recommended preparation.

Class 3 of 8: Distance Protection Testing: Characteristics, Load Encroachment and Power Swing. This self-paced class covers distance protection testing: mho and quadrilateral characteristics, ground-zone compensation (k0), search and shot tests, zone timers, load encroachment, power-swing blocking and switch-onto-fault, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Advanced Protective Relaying (Level 3 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 3 of 8 in the Level 3 series, Advanced Protective Relaying (PR-301 to PR-308). Recommended order: PR-301 through PR-309; classes may be taken in any order. Level 2 is recommended preparation.

Class 5 of 8: IEC 61850 for Test Technicians: GOOSE, Sampled Values and Test Modes. This self-paced class covers IEC 61850 for test technicians: station and process bus, SCL files, GOOSE verification, test and simulation modes for virtual isolation, Sampled Values, merging units and PTP time sync, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Advanced Protective Relaying (Level 3 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 5 of 8 in the Level 3 series, Advanced Protective Relaying (PR-301 to PR-308). Recommended order: PR-301 through PR-309; classes may be taken in any order. Level 2 is recommended preparation.

Class 7 of 8: Event and COMTRADE Analysis: Fault Records, Oscillography and Misoperations. This self-paced class covers event reports, SER and COMTRADE files, reading oscillography, identifying fault types, deciding correct operation or misoperation, playback testing and writing a root-cause report, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Advanced Protective Relaying (Level 3 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 7 of 8 in the Level 3 series, Advanced Protective Relaying (PR-301 to PR-308). Recommended order: PR-301 through PR-309; classes may be taken in any order. Level 2 is recommended preparation.

An optional 40-question review covering all eight Level 3 classes, including a short "commissioning a new line terminal" scenario set. You need 80% (32 of 40) to pass, and you can retake the quiz as many times as you need until you pass.

The questions are new or reworded items based on the class question banks. Continuing education credit: 0 (none awarded yet).

Optional review for the Level 3 series, Advanced Protective Relaying (PR-301 to PR-308). Recommended order: PR-301 through PR-309; classes may be taken in any order. Level 2 (PR-201 to PR-209) is recommended preparation.

Class 2 of 8: Relay Setting Verification and Settings Audits. This self-paced class covers auditing relay settings against issued revisions, as-found and as-left records, checking logic and output mapping, settings compare tools, and managing the settings lifecycle, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Expert Protective Relaying (Level 4 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 2 of 8 in the Level 4 series, Expert Protective Relaying (PR-401 to PR-408). Recommended order: PR-401 through PR-409; classes may be taken in any order. Level 3 is recommended preparation.

Class 4 of 8: Advanced Transformer and Generator Protection Analysis. This self-paced class covers sympathetic inrush, overexcitation, restricted earth fault, autotransformers and phase shifters, 100% stator ground, inadvertent energisation, loss of field, and coordinating generator protection with controls, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Expert Protective Relaying (Level 4 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 4 of 8 in the Level 4 series, Expert Protective Relaying (PR-401 to PR-408). Recommended order: PR-401 through PR-409; classes may be taken in any order. Level 3 is recommended preparation.

Class 6 of 8: Misoperation Investigation and Root Cause Analysis (NERC PRC-004 Concepts). This self-paced class covers classifying misoperations, preserving evidence and building a timeline, five whys and fishbone root cause methods, common causes, human performance tools, and corrective action plans, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Expert Protective Relaying (Level 4 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 6 of 8 in the Level 4 series, Expert Protective Relaying (PR-401 to PR-408). Recommended order: PR-401 through PR-409; classes may be taken in any order. Level 3 is recommended preparation.

Class 8 of 8: Cybersecurity, Firmware and Settings Management, and Test Automation. This self-paced class covers protection cybersecurity, secure relay access and logging, firmware updates, settings version control, automated test plans, and controlling laptops and removable media, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Expert Protective Relaying (Level 4 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.

Class 8 of 8 in the Level 4 series, Expert Protective Relaying (PR-401 to PR-408). Recommended order: PR-401 through PR-409; classes may be taken in any order. Level 3 is recommended preparation.

Class 1 of 8: Test Equipment Fundamentals, Safety and Basic Meters. This self-paced class covers calibration and inspection, CAT ratings, the digital multimeter, true-RMS clamp meters, proving units and live-dead-live, medium-voltage detectors and phasing testers, phase rotation, and temperature and humidity records, plus a field walkthrough and a composite case study. It has about 45 minutes of lesson content plus video clip activities, two practice activities and a 30-question quiz. It is part of the SubstationU.com Introduction to Electrical Test Equipment series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book, complete the video clip activities and the two practice activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course; the recommended order is Class 1 to Class 8, but you can take them in any order.

Class 3 of 8: High-Potential, VLF, Tan Delta and Partial Discharge Testing. This self-paced class covers DC hipot, VLF, tan delta and partial discharge testing of cables and apparatus, the cable test kit, test sequence, safety and reporting, plus a field walkthrough and a composite case study. It has about 45 minutes of lesson content plus video clip activities, two practice activities and a 30-question quiz. It is part of the SubstationU.com Introduction to Electrical Test Equipment series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book, complete the video clip activities and the two practice activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course; the recommended order is Class 1 to Class 8, but you can take them in any order.

It is the responsibility of a test technician to know which piece of test equipment to use for the task at hand and also to understand the limitations of the test equipment they are using. In this course, we will examine the most common pieces of test equipment used in the field.

Continuing education credit: 0 (none awarded yet)

Class 6 of 8: Circuit Breaker and Trip Unit Test Equipment. This self-paced class covers circuit breaker primary injection, time-current curves, secondary injection of trip units, settings, ground fault and neutral protection, motor-circuit logic and breaker timing, plus a field walkthrough and a composite case study. It has about 45 minutes of lesson content plus video clip activities, two practice activities and a 30-question quiz. It is part of the SubstationU.com Introduction to Electrical Test Equipment series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book, complete the video clip activities and the two practice activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course; the recommended order is Class 1 to Class 8, but you can take them in any order.

Class 8 of 8: Thermography, Batteries, Renewables and Specialty Instruments. This self-paced class covers infrared thermography and delta-T, battery testing, solar and EV equipment checks, other instruments, and a capstone, plus a field walkthrough and a composite case study. It has about 45 minutes of lesson content plus video clip activities, two practice activities and a 30-question quiz. It is part of the SubstationU.com Introduction to Electrical Test Equipment series (Level 1 course). Continuing education credit: 0 (none awarded yet).

Read the lesson book, complete the video clip activities and the two practice activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass. Each of the eight classes is a separate course; the recommended order is Class 1 to Class 8, but you can take them in any order.

This course provides a comprehensive overview of the inspection, testing, and maintenance techniques used on switchgear and switchboard assemblies, and their associated components.

Continuing education credit: 0 (none awarded yet)

This course provides a comprehensive overview of the most common power system studies and the differences between them.

Continuing education credit: 0 (none awarded yet)

Year One provides the foundation for safe and effective electrical testing work. Apprentices begin by learning the safety principles, hazard recognition, and work practices required to perform testing responsibly. From there, the course introduces the fundamentals of electricity, electrical calculations, and AC/DC circuit behavior to build core technical understanding. The year then progresses into basic testing methods, including insulation, resistance, thermographic, and current testing, before finishing with system diagrams, symbols, and introductory system analysis. By the end of the first year, the apprentice should have a stronger understanding of how to work safely, how electrical systems behave, and how core testing methods are used in the field.

Continuing education credit: 0 (none awarded yet)

When a coworker is caught on an energized part, the people nearby have only seconds to act, and the wrong move can create a second victim. This course gives electrical workers, standby persons, and crew members the knowledge to respond safely.

You will learn why electric current takes control of the body and keeps a victim from letting go, how to recognize a shock event and size up the scene before stepping in, and the principles of a safe release, including when the right call is to stay back and get help. The course also covers what to do in the first minutes after release and why every shock victim needs medical care, along with what employers must provide to keep this training current.

The course is based on NFPA 70E (2024 edition). It teaches the knowledge part of contact release training. Hands-on release practice is done on site by your employer, and CPR, AED, and first aid training come from a separate certifying provider.

About 1 hour. One final quiz of 25 questions, and you pass with 20 correct. You will see your score and whether you passed.

Continuing education credit: 0 (none awarded yet).

Personal protective equipment is the last thing standing between you and an electrical hazard, so it has to be the right gear, in good shape, and worn the right way. This course shows you how.

You will learn the main kinds of electrical protective equipment and where PPE fits among other ways of controlling a hazard, how to match equipment to the task, and how to inspect, wear, store, test and retire it. The course is honest about what PPE cannot do and walks through the common mistakes that leave workers exposed. It is based on NFPA 70E (2024 edition) and OSHA requirements.

Built for electrical workers, technicians and supervisors. Plan on roughly 3 to 4 hours. You can start and stop whenever you like, and your progress is saved. Each lesson ends with a short quiz, and the final quiz opens once those are passed. One final quiz of 50 questions, and you pass with 40 correct. You will see your score and whether you passed.

This course supports your training. It doesn't replace your employer's safety program, fit checks or hands-on training.

Continuing education credit: 0 (none awarded yet).

Most serious electrical injuries happen on equipment someone believed was off. This course explains how to make equipment truly safe to work on and how to keep it that way until the job is done.

You will learn what OSHA and NFPA 70E (2024 edition) expect from an energy control program, who does what during a lockout, how to find every source of energy, including stored energy that stays behind after a disconnect is opened, and how to prove that equipment is dead before anyone touches it. The course also covers working as a crew, handing equipment over between shifts, and the field mistakes that most often lead to injuries.

Built for electrical workers, technicians, maintenance staff and supervisors. Plan on roughly 5 hours. You can start and stop whenever you like, and your progress is saved. Each lesson ends with a short quiz, and the final quiz opens once those are passed. One final quiz of 50 questions, and you pass with 40 correct. You will see your score and whether you passed.

This course supports your training. It doesn't replace your employer's energy control program or hands-on training.

Continuing education credit: 0 (none awarded yet).