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Used Power Transformers

  • Reliance Electric,417156-1RV,Transformer 460V 2.1kva

    Reliance Electric,417156-1RV,Transformer 460V 2.1kva

    • Manufacturer: Reliance Electric

    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 make sure the part number(s) m...

    $600 USD
    Galion, OH
  • Dormeyer Industries,DCT-20-120,Transformer 120V 50-60Hz

    Dormeyer Industries,DCT-20-120,Transformer 120V 50-60Hz

    • Manufacturer: Dormeyer Industries

    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...

    $30 USD
    Galion, OH
  • ALLEN BRADLEY,40171-002-03,TRANSFORMER MODULE 480V

    ALLEN BRADLEY,40171-002-03,TRANSFORMER MODULE 480V

    • Manufacturer: Allen-Bradley

    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 ...

    $10 USD
    Galion, OH
  • MICRON,B1K0-2268-GAH,TRANSFORMER 1KVA

    MICRON,B1K0-2268-GAH,TRANSFORMER 1KVA

    • 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
  • ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY NOS

    ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY NOS

    • Manufacturer: Allen-Bradley

    ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY 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...

    $15 USD
    Galion, OH
  • ALLEN BRADLEY,25634-141-01,TRANSFORMER .075KVA 240/480V

    ALLEN BRADLEY,25634-141-01,TRANSFORMER .075KVA 240/480V

    • Manufacturer: Allen-Bradley

    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
  • Allanson,1092 Type F,Ignition Transformer 120V

    Allanson,1092 Type F,Ignition Transformer 120V 50/60Hz

    • Manufacturer: Allanson

    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 make sure the part number(s) m...

    $85 USD
    Galion, OH
  • Marelco,M-10822S,7.5kVA Transformer 44A724699.004

    Marelco,M-10822S,7.5kVA Transformer 44A724699.004

    • Manufacturer: Marelco

    Used 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 make s...

    $220 USD
    Galion, OH
  • Reliance Electric,65248-12S,Transformer 3KVA 50/60 Cycles

    Reliance Electric,65248-12S,Transformer 3KVA 50/60 Cycles

    • Manufacturer: Reliance Electric

    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...

    $165 USD
    Galion, OH
  • Jefferson Electric,631-1301-000,Transformer 100VA 50/60Hz

    Jefferson Electric,631-1301-000,Transformer 100VA 50/60Hz

    • Manufacturer: Electric

    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...

    $70 USD
    Galion, OH
  • ALLEN BRADLEY,1497-N19,TRANSFORMER 500VA 50/60HZ

    ALLEN BRADLEY,1497-N19,TRANSFORMER 500VA 50/60HZ

    • Manufacturer: Allen-Bradley

    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
  • CUTLER-HAMMER,C0500E2AFB,CONTROL TRANSFORMER 500VA

    CUTLER-HAMMER,C0500E2AFB,CONTROL TRANSFORMER 500VA

    • Manufacturer: Cutler-Hammer

    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
  • Westinghouse,1000KVA Padmount Transformer,12470GRDY/7200-480Y-277

    Westinghouse,1000KVA Padmount Transformer,12470GRDY/7200-480Y-277

    • Manufacturer: Westinghouse

    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 ...

    $30,000 USD

    Get financing

    Est. $565/mo

    Galion, OH
  • TOGI,TRH500-21N,TRANSFORMER 500VA 50/60HZ

    TOGI,TRH500-21N,TRANSFORMER 500VA 50/60HZ

    • Manufacturer: TOGI

    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 ...

    $80 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
2021222324

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.