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B & B Transformer builds 3 phase, oil-filled, distribution class transformers.  30KVA up to 2500KVA. We build to our customers voltages and configurations. We build to ANSI and 2016 D.O.E. specifications.  

One of B & B Transformer's foremost strengths is that we can produce transformers fast. We are small enough where we can move our production schedule to meet our customer's needs. In emergencies, we have been know to make 3 phase transformers in one week or less. 


We offer a full 3-year warranty.

3 Phase Transformer Options

Dead Front or Live Front

Loop Feed or Radial Feed

Single, Dual or Triple Voltage

Step-Down Voltages

Wells and Inserts


Stud or Spade Secondaries

 Secondary Supports


4 Position Switch

On/Off Switch

Full Gauge Packages

Drain Valve



We service and repair all makes and models of 3 phase transformers. If you are wanting to save time and money, check out the Repair/Retank tab at the top of the page.

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 three-phase 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 unit.

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