Transformer School

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Transformer School

Transformer School

Date: December 15-17, 2021
  • Day 1: Dec 15, 2021 12:00 pm - 4:00 pm
  • Day 2: Dec 16, 2021 8:30 am - 4:00 pm
  • Day 3: Dec 17, 2021 8:30 am - 12:00 pm
Location: MMUA Training Center, 1004 Michigan Road, Marshall, MN 56258
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Three-Phase Transformer Connections

Scott Meinecke is an expert on transformers and will be back to instruct. Scott has been training on the topic for more than 25 years, and he is known for explaining complicated principals in such a way that they can be more easily understood. The combination of classroom and hands-on instruction is designed to increase understanding of the inner workings of a transformer, appropriate installations, and applications for maximum reliability.

In addition, we offer a Pre-Conference covering basic single-phase transformer connections and theory. (Separate registration required.)

Transformer School, taken in conjunction with the Pre-Conference, offers an exceptional hands-on training experience.

NOTE: Members of MREA need to register on their site directly.

What You Will Learn

The three-phase course will start with the basics of transformers, including turns ratios, polarities, calculations, connections, and troubleshooting. Participants will learn about the basic three-phase systems with some basic phasor diagrams and explain the relationship of the phasor to the transformer itself.

In the hands-on portion of the course, participants will work with miniature transformers that are energized and will blow fuses, in order to experience what happens when something is wired incorrectly.

The class will continue to build on the miniature transformer banks and work on troubleshooting. Additionally, they will discuss motor rotation as it relates to three-phase systems; as well as ways to prevent voltage surge when switching a three-phase bank.

Upon completion of the Three-Phase Transformer Connections class, participants should have a good understanding of the following topics, related to transformers:                               

  • Basic Three-Phase Connections
  • Delta Connection                                               
  • Wye Connection                                                
  • Open Delta Connection
  • Three-Phase Troubleshooting


Wednesday, December 15
12:00-1:00  Registration
1:00-4:00  Classroom Three-Phase Transformer Connections

Thursday, December 16
8:30-12:00  Classroom and Hands-On Training
12:00-1:00  Lunch Served at Training Center
1:00-4:00  Classroom and Hands-On Training

Friday, December 17
8:30-12:00  Classroom and Hands-On Training

*Schedule subject to change without notice.

What to Bring

Registrants must bring their own personal protective equipment as well as other items, including:

  • Facemask/Face Covering
  • Arc Flash Shield and Hard Hat
  • Safety Glasses
  • Secondary Rubber Gloves
  • FR Clothing
  • Appropriate Footwear
  • Volt/Amp Meter
  • Calculator
  • Notebook and Pen/Pencil

Certificate of Achievement

A certificate of achievement will be provided showing the hours of attendance acquired. Certificates will be emailed after the course.

Registration Fees

Member Rate: $465 per person
Non-Member Rate: $690 per person

All fees increase $50 on November 13, 2021.
Deadline to register is November 23.

Registration fee includes course tuition, materials, Thursday lunch, refreshment breaks and a certificate of achievement. If registering for the Pre-Conference, lunch on Wednesday is also included.

Cancellations / Refunds

MMUA charges a $30 processing fee per person for registrations cancelled on/by November 23, 2021. MMUA must be notified by 4:30 pm on November 23 to qualify.

Hotel / Motel Information — Marshall, MN

For a map of hotels in Marshall, click HERE. The AmericInn and EverSpring Inn offer special pricing for participants. Just ask for MMUA's reduced rate when making your reservation. We recommend making your hotel reservation as soon as possible as availability cannot be guaranteed.


By registering for this event I/we, the registered attendee(s), authorize Minnesota Municipal Utilities Association (MMUA) to photograph me at this event and use such photographs in MMUA marketing materials (both electronic and print). I understand that I will not be paid for giving this consent. Likewise, anyone who attends as a substitute for a registered individual understands MMUA may take their photograph and utilize the photograph in marketing materials, and the individual(s) grants consent to MMUA with the understanding that they will not be paid.


Contact Theresa Neddermeyer by calling 763.551.1230 or email

This information is available in a printable brochure as well.