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Used Reliance Electric Power Transformers in Ohio, USA

  • RELIANCE ELECTRIC,64670-11R,TRANSFORMER RATIO 1:220 NOS

    RELIANCE ELECTRIC,64670-11R,TRANSFORMER RATIO 1:220 NOS

    • 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 ...

    $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
  • 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
  • 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
  • RELIANCE ELECTRIC,69000-8W,TRANSFORMER 460V AC 50/60HZ

    RELIANCE ELECTRIC,69000-8W,TRANSFORMER 460V AC 50/60HZ NOS

    • Manufacturer: Reliance Electric

    RELIANCE ELECTRIC,69000-8W,TRANSFORMER 460V AC 50/60HZ 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 ...

    $325 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
  • RELIANCE,411027-1S,TRANSFORMER POWER SUPPLY NOS

    RELIANCE,411027-1S,TRANSFORMER POWER SUPPLY NOS

    • 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 ...

    $110 USD
    Galion, OH

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.