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Used Power Transformers in Ohio, USA

  • HONEYWELL,AT140B1206,TRANSFORMER 40VA 120V

    HONEYWELL,AT140B1206,TRANSFORMER 40VA 120V

    • Manufacturer: Honeywell

    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 ...

    $15 USD
    Galion, OH
  • RELIANCE,69000-8-W,TRANSFORMER 460V NEW

    RELIANCE,69000-8-W,TRANSFORMER 460V NEW

    • Manufacturer: Reliance Electric

    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 ...

    $325 USD
    Galion, OH
  • Allanson,542,Ignition Transformer Type A 120V/10000V

    Allanson,542,Ignition Transformer Type A 120V/10000V

    • 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...

    $110 USD
    Galion, OH
  • MICHAEL RIEDEL REIA SONDER,EL 192/100,

    MICHAEL RIEDEL REIA SONDER,EL 192/100, TRANSFORMER 2KVA

    • Manufacturer: MICHAEL RIEDEL

    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 ...

    $128 USD
    Galion, OH
  • Allen Bradley,1497-N11,Control Circuit Transformer NOS

    Allen Bradley,1497-N11,Control Circuit Transformer NOS

    • Manufacturer: Allen-Bradley

    New, box is extremely 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...

    $76 USD
    Galion, OH
  • Dongan,IC-1000-107,Transformer kVA 1 50/60 HZ

    Dongan,IC-1000-107,Transformer kVA 1 50/60 HZ

    • Manufacturer: Dongan

    Used. Part was pulled from operation upon factory shutdown. Please see pictures for details and condition. Please check out our eBay store to view additional listings. We hope to deal with you very soon! Room 3 S...

    $52 USD
    Galion, OH
  • GE,9T58B1805,Specialty Transformer Type-IP

    GE,9T58B1805,Specialty Transformer Type-IP

    • 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 ...

    $560 USD
    Galion, OH
  • GS,Y750,HEAVY DUTY CONTROL CIRCUIT TRANSFORMER

    GS,Y750,HEAVY DUTY CONTROL CIRCUIT TRANSFORMER 750 KVA NOS

    • Manufacturer: Sola/Hevi-Duty

    New 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 pictures to...

    $56 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
  • 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
  • RITTAL,234402,TRANSFORMER 3.73A 115V 50/60 HZ

    RITTAL,234402,TRANSFORMER 3.73A 115V 50/60 HZ

    • Manufacturer: Rittal

    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...

    $64 USD
    Galion, OH
  • Daykin,MDGTB-07,Midget Transformer Disconnecty Enclosure 480V

    Daykin,MDGTB-07,Midget Transformer Disconnecty Enclosure 480V 1.1A

    • Manufacturer: Daykin

    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...

    $60 USD
    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
  • 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
  • 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
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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.