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MREA/MMUA Transformer School & Pre-conference

December 14, 2026 12:00 PM - December 17, 2026 12:00 PM (CST)

Description

MREA/MMUA Transformer School & Pre-conference
December 14-15 - Pre-Conference Workshop
December 15-17 - Transformer School
MMUA Training Center, Marshall, MN

REGISTER BY NOVEMBER 19TH FOR BEST RATE
Registration will increase $50 after that date.

OVERVIEW
December 14
Pre conference workshop
12:00–1:00       Registration
1:00–4:00         Basic single-phase connections

December 15
Pre conference workshop
8:30–12:00       Basic single-phase connections
12:00–1:00         Lunch
Transformer School
12:00–1:00       Registration
1:00–4:00         Three-phase transformer connections

December 16
8:30–12:00    Three-phase transformer connections
12:00–1:00    Lunch
1:00–4:00    Three-phase transformer connections

December 17
8:30–12:00    Three-phase transformer connections

Pre-conference workshop: Basic single-phase transformer connections and theory 
The pre-conference workshop is designed to provide an introductory overview of transformer fundamentals. Topics include safety, transformer theory, calculations, connections, and equipment sizing, making the course an ideal opportunity to build a strong technical foundation or reinforce essential knowledge of the basics.

Transformer program: Three-phase transformer connections
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 and 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, thereby experiencing what happens when something is wired incorrectly. The
class will further develop the miniature transformer banks and focus on troubleshooting techniques. Additionally, motor rotation as it relates to three-phase systems will be discussed, along with methods to prevent voltage surges when switching a three-phase bank. After completing the
three-phase transformer connections course, participants will have a broader understanding of the following transformer-related topics:
Basic three-phase connection
Delta connection
Wye connection
Open delta connection
Three-phase troubleshooting

WHO SHOULD ATTEND 
Substation technicians and lineworkers

WHAT TO BRING
 Please bring appropriate attire and materials, including:
Fire-resistant clothing
Safety glasses
Rubber gloves
Safety footware
Volt/amp meter

COST
Pre-conference
$300 Education Member
$400 Non-education Member

Transformer School
$1175 Education Member
$1275 Non-education Member


HOTEL
Marshall offers many hotel options in addition to the hotels listed below. MMUA has arranged for discounted lodging at these hotels. Please call the hotel directly and ask for MMUA’s reduced rate when making your reservation. We recommend making your reservation as soon as possible since availability cannot be guaranteed.

AmericInn 
1406 E Lyon St Marshall
Phone: 507-537-9424

Everspring Inn & Suites 
1500 E College Dr Marshall
Phone: 507-532-3221

Event Policies
MREA Event Cancellation Policy (Link to Full Policy) updated 12.19.2025

MREA Event Code of Conduct (Link to Full Policy)
MREA is committed to providing a safe, productive and welcoming environment for all participants and staff in MREA meetings, conferences, training programs, and events both online and in-person. All Event participants including but not limited to attendees, speakers, exhibitors, staff, students, guests and vendors, are expected to abide by this MREA Event Code of Conduct, and this code applies to all space and situations in which MREA meeting-related activities are being conducted, including virtual meetings and those sponsored by organizations other than MREA but held in conjunction with MREA Events. Participation constitutes agreement to comply with the Code of Conduct as a condition of attendance. 

2026 Late Registration
All events in 2026 will be subject to a $50 late registration fee for anyone that registers 2 weeks prior to the published event dates.

Time

T 1:00-4:00
W 8:30 – 4:00
Th 8:30 – 4:00
F 8:00 – 2:00

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Contact Information

Minnesota Rural Electric Association | MREA
Name: Karen Miller
Email: karen@mrea.org
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