How to test a protective relay
Relay tests prove faults will clear.
6 steps →How-to guides
Substation Technician How-To Guides
Step-by-step guides to common substation technician tasks: the practical side of the job.
Common substation technician tasks
Step-by-step overviews of tasks substation technicians perform regularly. Use them to understand the job, prepare for training or refresh your memory.
How to apply safety grounds
Grounds protect against unexpected energy.
6 steps →How to sample transformer oil
Oil tests reveal transformer health.
6 steps →Before you practice
Learn every core task
Our Substation Technician training walks through these procedures and more, alongside vocabulary, safety and career-launch lessons.