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Oil Filled Transformers

Oil Filled Transformer


This is our inventory of Oil Filled Transformers in stock and ready for immediate shipment. For a detailed view, choose one of the options below.

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Oil Filled Transformer Frequently-Asked Questions

Click on question marks below to get answers to these frequently-asked questions.

Why doesn’t the oil in an electrical transformer burn?

Why is oil used in an electrical transformer?

Why don’t oil filled transformer manufacturers fill power transformers with something that does not burn?

In terms of quality and efficiency, are most power transformers about the same?

If I wanted to learn more about electrical power transformers, what other search terms would I use?

Quick links to other used, reconditioned and new transformer inventory:


New, Surplus, Used, Reconditioned Dry Type General Purpose Transformers Up to 600 Volts

MIDWEST is famous for inventory of transformers General Electric; GE; ACME; Jefferson transformers; MGM; We also feature Ajax; Hevi Duty; Square D transformers; Challenger; Basler; Bruce Electric; Everyone knows about Westinghouse transformers; McGraw Edison; Federal Pacific; Standard; Olsun; More familiar to electricians are Sorgel; Zinsco; Ward; Teledyne; Sylvania; Sola; Seasoned electrical maintenance folks may know Polygon; Tierney; Rapid Electric; Line Material; Deltec; Dongan; Less known Utility Transformers; Unknown Transformers; New Transformers; Saban Electric; RIS; REX; Powerformer; Osakidengyo; Obscure names Fukuda; Jeffries; Johnson transformers; Kenyon; Marcus; Matra.

Used, Reconditioned, Surplus, and New

GE; General Electric; Square D transformers are a few of the many sold by MIDWEST; Popular low voltage distribution units by Eaton; Cutler Hammer; The old Sorgel and Allis Chalmers; ITE; MIDWEST features new Jefferson Transformers; MGM; Hammond; Westinghouse; Hevi Duty; Other name mfg are ACME; Federal Pacific; And some unknown transformer mfg.

Used, Surplus, Reconditioned, Rewound, Remanufactured, and New

GE; General Electric; Westinghouse; RTE are a few transformers supplied by MIDWEST. GEC Alsthom; Square D; Wagner; Cooper Power Systems are featured in MIDWEST’s inventory; We also have refurbished Allis Chalmers; Ferranti Packard; Line Material; Foundries will recognize McGraw Edison; Pennsylvania; Magnetek; MIDWEST is proud to provide ITE; Standard; Federal Pacific: Vantran.

Used, Reconditioned, Surplus and New Rental Transformers

MIDWEST proudly offers our inventory of transformers for rent GE; General Electric; Westinghouse; Square D; Look for immediate availability of Federal Pacific; Hammond; Jefferson; Sorgel; Standard; Cooper Power Rental Transformers; RTE; We can also provide specialty silicone filled rental transformers; None Flammable; Fireproof; Outdoor oil filled Ferranti Packard; Federal Pacific; Alsthom; ABB; MIDWEST uniquely offers accessories for rental Olsun; MGM; McGraw Edison; Acme; ITE; A featured service are auxiliary primary and secondary equipment for Hevi Duty; Line Material; Allis Chalmers; Challenger; Get power on as soon as possible with Siemens; Ajax; Utility Transformers; Station Transformers; Unit Substation Transformers; Pad Mount; Indoor; Large MVA and KVA Rental Transformers from MIDWEST; Step Up; Step Down; GSU; Special Transformers.
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N93 W16170 Megal Drive · Menomonee Falls, WI 53051
Toll-Free: 800.803.9256 · Local: 414.461.8200 · Fax: 414.461.8485
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