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Used Power Transformers

  • GENERAL ELECTRIC,9T58B0503G30,INDUSTRIAL CONTROL TRANSFORMER

    GENERAL ELECTRIC,9T58B0503G30,INDUSTRIAL CONTROL TRANSFORMER

    • Manufacturer: GE

    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 ...

    $30 USD
    Galion, OH
  • SQUARE D,9070K75D1,INDUSTRIAL CONTROL TRANSFORMER NOS

    SQUARE D,9070K75D1,INDUSTRIAL CONTROL TRANSFORMER NOS

    • Manufacturer: Square D

    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
  • EMERSON,E300,CONTROL TRANSFORMER .300KVA 240X480-120V NOS

    EMERSON,E300,CONTROL TRANSFORMER .300KVA 240X480-120V NOS

    • Manufacturer: Emerson

    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 ...

    $95 USD
    Galion, OH
  • Trusted Seller
    MO-6186, LIEBERT EMERSON A225C TRANSFORMER

    MO-6186, LIEBERT EMERSON A225C TRANSFORMER CORE. 225 KVA. 480 HV. 208/120 LV.

    • Manufacturer: Liebert - Vertiv

    “Contact us directly for a freight quote or you can setup your own freight. Please provide ship to address. Loading is included with the sale of the item.”

    $1,999 USD
    Willoughby, OH
  • Trusted Seller
    MO-6143, MAGNETICS 750 KVA DRY

    MO-6143, MAGNETICS 750 KVA DRY TYPE TRANSFORMER CORE. 13800-480Y/277 V. 3 PH.

    • Manufacturer: Magnetics

    “Contact us directly for a freight quote or you can setup your own freight. Please provide ship to address. Loading is included with the sale of the item.”

    $8,500 USD

    Get financing

    Est. $167/mo

    Willoughby, OH
  • Trusted Seller
    MO-5849, MAGNETICS L-16154 DRY TYPE

    MO-5849, MAGNETICS L-16154 DRY TYPE TRANSFORMER. 1000 KVA. 13800 V - 480Y/277 V.

    • Manufacturer: Magnetics

    “Contact us directly for a freight quote or you can setup your own freight. Please provide ship to address. Loading is included with the sale of the item.”

    $12,500 USD

    Get financing

    Est. $246/mo

    Willoughby, OH
  • Johnson Controls,Y64AJ-1,Baso Transformer 120V 60Hz

    Johnson Controls,Y64AJ-1,Baso Transformer 120V 60Hz

    • Manufacturer: Johnson

    Used and in good condition. 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 to ma...

    $90 USD
    Galion, OH
  • Acme Electric,T253008S,Transformer HV240/480 LV120/240

    Acme Electric,T253008S,Transformer HV240/480 LV120/240

    • 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 ...

    $45 USD
    Galion, OH
  • SQUARE D,9070T150D13,CONTROL TRANSFORMER 0.15KVA

    SQUARE D,9070T150D13,CONTROL TRANSFORMER 0.15KVA

    • Manufacturer: Square D

    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 ...

    $30 USD
    Galion, OH
  • Chuo Electric,E189301 105 UN-10,Transformer 300Va

    Chuo Electric,E189301 105 UN-10,Transformer 300Va 50/60Hz

    • Manufacturer: Chuo

    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...

    $200 USD
    Galion, OH
  • Chuo Electric,E189301 105 UN-7,Transformer 300Va

    Chuo Electric,E189301 105 UN-7,Transformer 300Va 50/60Hz

    • Manufacturer: Chuo

    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...

    $85 USD
    Galion, OH
  • P&H,75Q315D1,Control Circuit Transformer 500VA 50/60HZ

    P&H,75Q315D1,Control Circuit Transformer 500VA 50/60HZ

    • Manufacturer: P & H

    Used and in good condition. 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 to ma...

    $250 USD
    Galion, OH
  • MICRON INDUSTRIES,B500MBT713RK,CONTROL TRANSFORMER 500VA 50/60HZ

    MICRON INDUSTRIES,B500MBT713RK,CONTROL TRANSFORMER 500VA 50/60HZ

    • Manufacturer: Micron

    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 ...

    $150 USD
    Galion, OH
  • K.K Sanwa,1SB1000,Transformer 1000kVA 100V 50/60Hz

    K.K Sanwa,1SB1000,Transformer 1000kVA 100V 50/60Hz

    • Manufacturer: Sanwa

    Refurbished and in good condition. 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 picture...

    $85 USD
    Galion, OH
  • GE,9T58B53,Transformer 1.5 KVA 60 Hz

    GE,9T58B53,Transformer 1.5 KVA 60 Hz 1 Ph

    • Manufacturer: GE

    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
1819202122

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.