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New Power Transformers in USA

  • TRANS TECH,CPT360224006,CONTROL POWER TRANSFORMER 2KVA

    TRANS TECH,CPT360224006,CONTROL POWER TRANSFORMER 2KVA 120/240V

    • Manufacturer: Trans Tech

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $450 USD
    Galion, OH
  • Trusted Seller
    Cutler Hammer 2147A11G01 Control Power

    Cutler Hammer 2147A11G01 Control Power Transformer

    • Manufacturer: Cutler-Hammer

    Model number: 2147A11G01 | Mpn: 2147A11G01 | Shipping weight: 20 lbs | Shipping dimensions: 13 x 12 x 10 in | Reference sku: 1034203

    $7,860 USD

    Get financing

    Est. $154/mo

    Delta, OH
  • Trusted Seller
    Cutler Hammer 2147A11G01 Control Power

    Cutler Hammer 2147A11G01 Control Power Transformer

    • Manufacturer: Cutler-Hammer

    “New without Factory Packaging” Model number: 2147A11G01 | Mpn: 2147A11G01 | Shipping weight: 20 lbs | Shipping dimensions: 13 x 11 x 10 in | Reference sku: 1030691

    $6,740 USD

    Get financing

    Est. $132/mo

    Delta, OH
  • ACME,T-1-81047,BOOST AND BUCK TRANSFORMER VA:50

    ACME,T-1-81047,BOOST AND BUCK TRANSFORMER VA:50 1-PHASE NOS

    • Manufacturer: Acme

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $60 USD
    Galion, OH
  • SIGNAL TRANSFORMER,DP-241-7-10,TRANSFORMER NOS

    SIGNAL TRANSFORMER,DP-241-7-10,TRANSFORMER NOS

    • Manufacturer: Signal

    SIGNAL TRANSFORMER,DP-241-7-10,TRANSFORMER NOS What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not ...

    $15 USD
    Galion, OH
  • ACME,TA-2-54535,INDUSTRIAL CONTROL TRANSFORMER VA:50 1-PHASE

    ACME,TA-2-54535,INDUSTRIAL CONTROL TRANSFORMER VA:50 1-PHASE NOS

    • Manufacturer: Acme

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $60 USD
    Galion, OH
  • DONGAN,33-025,TRANSFORMER NOS

    DONGAN,33-025,TRANSFORMER NOS

    • Manufacturer: Dongan

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $45 USD
    Galion, OH
  • Gass,BV 17590,Transformer

    Gass,BV 17590,Transformer

    • Manufacturer: Gass

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $44 USD
    Galion, OH
  • GENERAL ELECTRIC,7702-0030-01,POWER TRANSFORMER NOS

    GENERAL ELECTRIC,7702-0030-01,POWER TRANSFORMER NOS

    • Manufacturer: GE

    GENERAL ELECTRIC,7702-0030-01,POWER TRANSFORMER NOS What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will...

    $25 USD
    Galion, OH
  • Reliance Electric,65248-8S,Transformer

    Reliance Electric,65248-8S,Transformer

    • Manufacturer: Reliance Electric

    New unused with original box NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures...

    $40 USD
    Galion, OH
  • Acme,ET-83327,Transformer 500VA NOS

    Acme,ET-83327,Transformer 500VA NOS

    • Manufacturer: Acme

    New, box is dirty from storage. NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictu...

    $50 USD
    Galion, OH
  • RELIANCE ELECTRIC,64670-15R,TRANSFORMER NOS

    RELIANCE ELECTRIC,64670-15R,TRANSFORMER NOS

    • Manufacturer: Reliance Electric

    RELIANCE ELECTRIC,64670-15R,TRANSFORMER NOS What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be ...

    $50 USD
    Galion, OH
  • Stancor,P-8657,Control Transformer 117V

    Stancor,P-8657,Control Transformer 117V

    • Manufacturer: Stancor

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $20 USD
    Galion, OH
  • Signal Transformer,241-7-16,Transformer Enclosure

    Signal Transformer,241-7-16,Transformer Enclosure

    • Manufacturer: Signal Transformer

    New unused without original box NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictu...

    $130 USD
    Galion, OH
  • EDS,T-294,TRANSFORMER 120V NOS

    EDS,T-294,TRANSFORMER 120V NOS

    • Manufacturer: EDS

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $20 USD
    Galion, OH
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Overview

Power transformers transfer electrical energy between voltage levels for utilities, substations, and large industrial plants. These heavy, high-capacity units come in oil-filled or dry-type designs, with cooling classes (ONAN, ONAF, etc.), on-load tap changers, bushings and protection gear. Buyers must match voltage class, impedance, capacity (kVA/MVA), and cooling to system needs, and plan for foundation, handling, transport and commissioning.

FAQ

What specifications should I check when buying a used power transformer?

Confirm voltage ratios, kVA/MVA rating, impedance, cooling type, phase configuration, on-load tap changer condition, bushing types and insulation class, and recent test reports (DGA, insulation resistance, turns ratio).

How do I verify a used transformer's condition before purchase?

Request factory and maintenance records, Dissolved Gas Analysis (DGA), insulation resistance, power factor tests, sweep-frequency response (SFRA) and a visual inspection report for leaks, rust and bushing integrity.

What are the key shipping considerations for heavy power transformers?

Plan for specialized heavy-haul transport, load lifting equipment, route permits, weight/axle limits, skidding or cradling, draining oil if required by regulations, and coordination with local authorities for oversized loads.

What site preparations are needed before delivery and installation?

Prepare a level, rated foundation or skid with proper anchoring, ensure crane access and pad capacity, verify cable entry, grounding, oil containment for liquid-filled units, and arrange for qualified rigging and electrical commissioning crews.

What ongoing maintenance keeps a power transformer reliable?

Perform regular DGA, insulation resistance and oil quality tests, thermographic inspections, tap changer maintenance, bushing checks, cooling system inspections and timely repairs. Follow manufacturer intervals and keep detailed service records.