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Used Power Transformers

  • GENERAL ELECTRIC,9T58R0046,TRANSFORMER .2KVA 240X480-115V NOS

    GENERAL ELECTRIC,9T58R0046,TRANSFORMER .2KVA 240X480-115V NOS

    • 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 ...

    $55 USD
    Galion, OH
  • SQUARE D,9070-SK5271N,TRANSFORMER DISCONNECT .87-1.09/.43-.54A 50/60

    SQUARE D,9070-SK5271N,TRANSFORMER DISCONNECT .87-1.09/.43-.54A 50/60 HZ

    • 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 ...

    $48 USD
    Galion, OH
  • General Electric,9T56Y2922,Transformer 50/60CY 0.050KVA

    General Electric,9T56Y2922,Transformer 50/60CY 0.050KVA

    • Manufacturer: GE

    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...

    $120 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
  • 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
  • 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
  • Moeller,Stz 0.8,Transformer 460V Pri 110V

    Moeller,Stz 0.8,Transformer 460V Pri 110V Sec 50-60 HZ

    • Manufacturer: Klöckner Moeller

    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...

    $48 USD
    Galion, OH
  • GE,55-172809G038,Control Transformer 240/480V- 24V 60Hz

    GE,55-172809G038,Control Transformer 240/480V- 24V 60Hz

    • 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 ...

    $24 USD
    Galion, OH
  • General Electric,9T51B107,Transformers PH1 60 Hz

    General Electric,9T51B107,Transformers PH1 60 Hz Type QB

    • Manufacturer: GE

    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...

    $40 USD
    Galion, OH
  • EMERSON SOLA,E150,HEVI-DUTY CONTROL TRANSFORMER .150KVA

    EMERSON SOLA,E150,HEVI-DUTY CONTROL TRANSFORMER .150KVA 50/60HZ NOS

    • Manufacturer: Hevi-Duty

    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 ...

    $75 USD
    Galion, OH
  • Square D,9070T50D1SF41,Control Transformer 0.05 kVA

    Square D,9070T50D1SF41,Control Transformer 0.05 kVA

    • Manufacturer: Square D

    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...

    $65 USD
    Galion, OH
  • Daykin Electric,MDGTB-07,Midget Transformers Disconnect 480V

    Daykin Electric,MDGTB-07,Midget Transformers Disconnect 480V 1.1A 60Hz

    • Manufacturer: Electric

    Used and in very 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 ...

    $50 USD
    Galion, OH
  • 2000/2300 KVA, 22,900 PRI, 480

    2000/2300 KVA, 22,900 PRI, 480 SEC, RE UPTEGRAFF, TRANSFORMER, USED POWER TRANSFORMER

    • Manufacturer: UPTEGRAFF

    Inventory id: 12156500000 | Rating: 2000 | Primary voltage: 22,900 | Secondary voltage: 480 | Phase: 3 | Hertz: 60 | Taps above and below: 2 ABOVE - 2 BELOW | Taps voltages: A-24,100 , B-23,500, C-22,100, D-2230...

    Pittsburgh, PA
2526272829

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.