Electric Power Systems

Trainer Relay Testing | Protection & Control

Job ID
Location : Metro Area
Denver, CO



Electric Power Systems is a NETA Certified, Independent Electrical Testing & Engineering Organization. We specialize in commissioning, start up, and maintenance testing for Utility, Industrial, Transit, Data Centers, and Commercial Facilities. At Electric Power Systems, we are committed to promoting a culture of safety within our organization and alongside all of our clients. Our dedication to providing safe and reliable services has made us a trusted industry leader since 1977.

Purpose of the Relay Trainer position

The role of the P&C trainer is to provide training to in house employees in testing and commissioning of protection and control systems.  The P&C trainer must be able to articulate complex theory and practical methodology to inexperienced technicians and engineers.  The P&C trainer should be familiar with relevant standards and best practices.



Explain complex math principles.

  • Explain calculations in both polar & cartesian coordinate systems. Explain how to use program testing software to automate calculations.
  • Explain Symmetrical components and how they relate to different fault types.
  • Explain differential relaying math. Show and explain derivation of formulas for different relay manufacturers to be used in testing.
  • Explain math of drawing impedance circles and other shapes.
  • Explain relaying concepts.
  • Explain principals of overcurrent protection.
  • Explain zones of protection.
  • Explain use of impedance to determine fault location.
  • Explain use of differential schemes.
  • Teach conformance and compliance with industry and customer standards
  • Teach to current NETA requirements (NETA ATS/MTS/ECS)

Teach programming of test plans with Doble Protection Suite.

  • Teach layout of software.
  • Teach how to automate test plans from provided settings.
  • Teach best practices for proper documentation.
  • Assist in revising lesson plans to keep up to date with newest standards and devices.
  • Coordinate the use of training aides.
  • Evaluate student progress and skills.


Qualifications and Education Requirements

  • Bachelor’s Degree Electrical Engineering Preferred, but not required.
  • 5+ years of experience in testing, design and/or commissioning
  • Must have testing experience
  • Must be knowledgeable of Human Performance Error Elimination Principals
  • Must be thoroughly familiar with SEL, and GE UR Relays.
  • Must be competent in using SEL – AcSELerator and GE – Enervista.
  • Knowledgeable of IEC 61850, preferred
  • Experienced with programming and troubleshooting various SCADA controllers, preferred 

Additional Notes

  • Training occurs Primarily in St. Louis but location is negotiable.
  • Some travel is required.
  • May be asked to assist on field testing jobs when not in the class room.



EPS in an equal opportunity employer. Our organization does not discriminate based on race, creed, color, veteran status, sex, religion, national origin, age, physical or mental disability, genetic information or any other characteristic protected by law. We are an E-Verify, Drug and Tobacco-Free Workplace.



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