EPP235 – 24.00 Hours


Details08/25/20 – 08/27/20Bryan, TXEU EPP235 68$750.00Register


TEEX-RELLIS Campus-Bld 6031

3100 State Hwy 47, Bldg. 6031
Bryan, TX 77807


Shelton Gilmore

Start Time

08:00 AM Tuesday, August 25, 2020
Central Daylight Time (CDT)

This schedule is subject to change without notice. If you have not received confirmation of the class prior to the class start, please contact the division at (800) 723-3811 or (800) SAFE-811 or itsi@teex.tamu.edu to get the latest schedule.

Course Description

 Students in classroomThree–Phase Transformer course provides participants advanced training covering the application, operation, and connections of substation power transformers, single and three-phase overhead, and underground transformers needed to supply power to customers at various voltage ranges. During training, students receive information specific to the proper operation, capabilities, and requirements of transformers in various configurations. Emphasis is placed on the proper selection and connection of transformers used to supply the load, required voltage, and capacity necessary to meet customer demands. A heavy focus is placed on hands-on field exercises utilizing the TEEX Electric Power field. During these exercises participants are given various load scenarios along with customer requirements and must determine the proper connection needed to supply the load applying the proper overcurrent and overvoltage protection. Once completed, students are then asked to properly connect the transformers using a “transformer trainer” and measure values to include verifying correct phase rotation. Discussions surrounding various troubleshooting techniques, best practices, and other related issues specific to banks will help participants develop skills necessary to help minimize customer down time.


There are no prerequisites for this course.

Course Completion Requirements

In order to fully participate in all field work exercises, students will need the following equipment hard hat, rubber gloves (Class 0), and safety glasses.

Attendance Requirements

To meet attendance requirements, participants must review each training module and complete all required course assignments, activities, quizzes, and/or end of course exam.


  • Operational knowledge of Electric Power Principles and Single-Phase Transformers.
  • A practical knowledge and understanding of electrical power utility systems and related concepts.


  • Electric Principles
  • Transformer Operations
  • Types of Transformers
  • Transformer Protection
  • Three-Phase Transformer Connection

Suggested Audience

  • Industry professionals responsible for installation, connection, and troubleshooting of overhead and underground three-phase transformer installations
  • Electricians
  • Cable professionals
  • Telecommunications professionals
  • Construction professionals

Contact Information

Infrastructure Training & Safety Institute
OSHA Training Institute Education Center
Phone: (979) 458-9188 | Toll-Free: (800) 723-3811 or (800) SAFE-811
Email: itsi@teex.tamu.edu

This class should be the standard.

— Crime Scene Investigation
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