Substation School

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Substation School

Substation School

Date: April 5-7, 2022
  • Day 1: Apr 5, 2022 12:00 pm - 4:00 pm
  • Day 2: Apr 6, 2022 8:30 am - 4:00 pm
  • Day 3: Apr 7, 2022 8:30 am - 12:00 pm
Location: MMUA Training Center, 1004 Michigan Road, Marshall, MN 56258
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MMUA is pleased to partner with Minnesota Rural Electric Association (MREA) on the 2022 Substation School. This year's School will be held at MMUA's Training Center in Marshall.

In addition to classroom instruction on a variety of substation-related topics, participants will also go behind the scenes and tour the Marshall Municipal Utilities' newest substation.

Who Should Attend?

This School can benefit anyone who works in a substation environment or those interested in learning more.

Location Details

MMUA Training Center
1004 Michigan Avenue
Marshall, MN 56258


Tuesday, April 5

12:00 - 1:00  Registration/Check In
1:00 - 4:00   Substation Maintenance & Inspections

Wednesday, April 6

8:30 - 10:00  Substation Testing: How, When & Why
10:15 - 11:45  Building a Substation
11:45 - 12:00  Safety Briefing for Tours
12:00 - 12:45  Lunch (provided)
1:00 - 4:00  Tour - Southwest Substation and Action Trackchair

Thursday, April 7

8:30 - 12:00  The "Ins and Outs" of a Substation

Schedule subject to change.

What You Will Learn 

Tuesday, April 5

Substation Maintenance and Inspections, Jeff Kranz, Rochester Public Utilities
Proper operation and maintenance of your substation is key to sustaining the heartbeat of your power distribution system and ensuring reliability to your customer base. Jeff will cover the industry's best practices on a variety of operational concepts and maintenance issues.

Wednesday, April 6

Substation Testing: How, When and Why
Recognizing the important role substations play in our systems, we need to take proper care to ensure they continue to provide.
Topics to be covered include:

  • Transformer
  • Transformer Insulation
  • Transmission & Distribution LTCs
  • Breaker Testing
  • DC Controls
  • Ratio Bushing Current Transformer Testing
  • SF6 Gas Testing
  • Surge Arrestors
  • Relays & Regulators

Building a Substation, DGR Engineering
The anticipated lifespan of a substation is 30-40 years. Your utility may be looking to upgrade existing or adding additional capacity with a new build in the future. While you may not be directly involved with the process it can be helpful to understand it—the needs leading up to, the design and build, and the final result.

Tours – Marshall Municipal Utilities' Southwest Substation and Action Trackchair
We have two tours planned: Marshall’s Southwest Substation and Action Trackchair. Action Trackchair manufactures twin-tracked electric wheelchairs that are highly maneuverable, allowing the operator greater accessibility outdoors, over a variety of terrains.

NOTE: High-vis clothing, hard hat, safety glasses and safety toe shoes are required for substation tours.

Thursday, April 7

The "Ins and Outs" of a Substation, Nick Koslowski, MinMax Technologies
Presented from a lineman’s perspective, participants fully engage during this in-depth demonstration of regulators, various tools, hardware and SCADA systems.

What to Bring

Because some of the training will take place outside of the classroom, participants must have the proper PPE for the substation tours, including:

  • High-Visibility Clothing
  • Hard Hat
  • Safety Glasses
  • Safety Footwear

Registration Fee

Members: $465 per student
Non-members: $690 per student
All fees increase $50 on March 4, 2022. Deadline to register is March 14, 2022.

Registration fee includes: Tuition, materials and supplies, lunch on Wednesday, refreshment breaks, bus transportation for tours, and certificate of attendance. Participants are responsible for their own PPE and lodging.

Cancellation Policy

MMUA will issue a refund (less $30 per person) for cancellation of an advance registration, provided MMUA is notified by 4:30 pm on March 14, 2022. Sorry, no refunds issued for cancellations after March 14.

Hotel / Motel Information — Marshall, MN

Attendees are responsible for their own lodging. For a map of hotels in Marshall, click HEREAmericInn by Wyndham Marshall and EverSpring Inn & Suites (formerly the Ramada Inn) offer special pricing for participants. Just ask for MMUA's reduced rate when making your reservation.

For best rate and availability we suggest you make your hotel reservation as early as possible.


Participants earn hours for attendance and a certificate of achievement will be available online. Participants should watch for an email notification from MMUA.


By registering for this event I/we 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/we understand that I/we will not be paid for giving this consent. 


Contact Theresa Neddermeyer by calling 763.551.1230 or email

A printable version of the Substation School brochure is also available.


Thank You, Annual Sponsors

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