Single Phase Transformers

B & B Transformer builds both overhead and underground single phase transformers.  We build to our customers specifications, voltage and configuration.  We build to your specs and losses, ANSI specs and 2016 D.O.E. specs.  We can fabricate any type of unit you are looking for.  We do yearly contracts for customers minimizing any production wait time.  Let us know what size, how many and when you want them.  We have one of the best warranty in the industry.  Don't want to wait months to get them from a large manufacturer?  We can turn them out days if needed.

        Overhead Transformer Options

          Single Bushing or Double Bushing

          Single Hanger or Double Hanger

          Single, Dual or Triple Voltage

          Step-Down Voltages


          Conventional or CSP


          Standard or Spade Secondarys


          Lightning Arrestors

          Grounding Straps


Overhead Transformers

Underground Transformers

         Underground Transformer Options

           Dead Front or Live Front

           Loop Feed or Radial Feed

           Single, Dual or Triple Voltage

           Ranch Runner, Type II or Full Size Tanks

           Wells and Inserts


           Stud or Spade Secondarys


           On/Off Switch

           Gauge Packages



We repair all makes and models of transformers.  If you are wanting to save time and money, check out the Repair/Retank tab, located at the top of the page.

B & B Transformer can supply amorphous cores to customers interested.

All units sold come with a 3 year warranty and full test reports (upon request) including - NL and FL losses - impedance % - excitation current - energy efficiency %. All overhead units come standard with pressure relief valves.  All underground units come standard with bayonet fusing, pressure relief valves and parking stands.  

We buy salvage/junk transformers - pole mount and pad mount. NOTE:  B & B Transformer does not handle any transformers or regulators with a PCB level of 50PPM or above. Salvage units should have either non-PCB on the data tag or a non-PCB sticker, have test results available, or be a B & B  Transformer.

© 2023 by Lion Heavy Gear. Proudly created with

Owner operated.

American owned, American made.

Proudly built in the U.S.A.

B&B Transformer

2850 220th Street West

Farmington, MN 55024