Class offering taught by Rick Ashton: Relay 101

Tulsa, Oklahoma

September 13-15, 2016
November 8-10, 2016

Earn 16 NETA CTD credits

ENOSERV and have joined together to present Rick Ashton Relay 101. The student relay techs will be led through this fast-paced three-day course by a former relay technician who has had all of the same questions and problems that the students have encountered. Rick Ashton is the owner/operator/instructor of He has over 25 years experience as a relay technician and over 15 years experience as a teacher/mentor.

Attend the class at the ENOSERV Training Facility in Tulsa, Oklahoma and you will receive presentations on:

  • Quadrant Diagrams
  • Phasor Diagrams
  • Impedance relay characteristics
  • Step-distance relaying
  • Tele-communications assisted trip schemes
  • Directional ground relay action
  • Differential relay schemes

You will learn:

  • Essential training for technicians to understand the function of protective relays in a power system.
  • Learn the method to determine the required tests for any protective relay regardless of manufacturer ("Relays by the numbers!")
  • Review of fundamentals that apply to protective relaying.
  • Understand the difference between the many relay characteristics used in protective relays.
  • Understand how to calculate Symmetrical Components and how to use them in applicable relay tests.

The class will also have a section called Relays by the Numbers which is a presentation that takes the mystery out of relay tests.

Rick is the author of numerous training aid materials including his lesson plan/reference: Relays 101 and his flagship product: Relay Training Center software.

Prerequisites of this course are that the student has high school level trigonometry and ohms law in his/her background and a previous exposure to protective relays. A knowledge of IEEE Device numbers assigned to protective relays will help the student as well. Do not be afraid that MATH is a part of this training. The class is presented in a manner that minimizes the math skills needed. ENOSERV has prepared a math refresher worksheet which outlines the Trig/Algebra functions used in the class. Comprehension of this material pre-class will ready attendees for the Relay Training Center Seminar.

This course is eligible for 16 NETA Continuing Technical Development Credits (CTDs). NETA Certified Technicians (Level III and Level IV) are required to earn a minimum of 48 CTDs every three years to maintain their certification. For more information about the CTD program and requirements, please contact the NETA office at or 888-300-6382.

Download the pre-class worksheetDownload the attendee pre-class worksheet

Cost: $1650

Register Here