Energy » Transformers » Power Transformers

Search By Manufacturer

Search By Country

Building Filters

1693

Used Power Transformers

  • AJAX,1T83440,TRANSFORMER 1KVA 1PH PRI 480V

    AJAX,1T83440,TRANSFORMER 1KVA 1PH PRI 480V SEC 120V

    • Manufacturer: Ajax

    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 ...

    $100 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
  • Square D,9070 MN500G0,Transformer Disconnect 500VA

    Square D,9070 MN500G0,Transformer Disconnect 500VA 230/460V 50/60Hz

    • Manufacturer: Square D

    Used in good condition. Part was pulled from operation upon factory shutdown and has been in storage since. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multi...

    $92 USD
    Galion, OH
  • Magnetics,2000KVA 3 Phase Dry Type

    Magnetics,2000KVA 3 Phase Dry Type Transformer HV 2135/2415D-LV 340Y/340D

    • Manufacturer: Magnetics

    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 ...

    $8,500 USD

    Get financing

    Est. $167/mo

    Galion, OH
  • Hammond,D175JCUB1D,Transformer 175KVA HV-460V LV-230V 3PH

    Hammond,D175JCUB1D,Transformer 175KVA HV-460V LV-230V 3PH

    • Manufacturer: Hammond

    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 ...

    $1,400 USD
    Galion, OH
  • EGS,HS1F1.5AS,General Purpose Transformer 1.5kva 240/480V

    EGS,HS1F1.5AS,General Purpose Transformer 1.5kva 240/480V 60Hz

    • Manufacturer: EGS

    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...

    $220 USD
    Galion, OH
  • Nunome Electric,NESH1200MUL8002-10,Transformer 1-Phase 50/60Hz 1.2kVA

    Nunome Electric,NESH1200MUL8002-10,Transformer 1-Phase 50/60Hz 1.2kVA

    • Manufacturer: Nunome 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...

    $220 USD
    Galion, OH
  • Allen-Bradley,1487 N27,Control Circuit Transformer Ser

    Allen-Bradley,1487 N27,Control Circuit Transformer Ser B Type M 240/480V 60Hz

    • Manufacturer: Allen-Bradley

    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...

    $80 USD
    Galion, OH
  • General Electric,MC-63 700X84-G1,Phase Shifting Transformer

    General Electric,MC-63 700X84-G1,Phase Shifting Transformer 120V

    • Manufacturer: GE

    New unused, NOS, no box was in an inventory cabinet. 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 ...

    $144 USD
    Galion, OH
  • EMERSON,E300,HEVI-DUTY CONTROL TRANSFORMER .300KVA 240X480-120V

    EMERSON,E300,HEVI-DUTY 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
  • Magnetics,150 KVA 3 Phase Dry

    Magnetics,150 KVA 3 Phase Dry Type Transformer HV 480V LV 277/480V

    • Manufacturer: Magnetics

    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 ...

    $2,250 USD
    Galion, OH
  • SQUARE D,9070T500D43,TRANSFORMER CONTROL 500VA 400/440/460-230

    SQUARE D,9070T500D43,TRANSFORMER CONTROL 500VA 400/440/460-230

    • Manufacturer: Square D

    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...

    $240 USD
    Galion, OH
  • Hevi-Duty,Type SZ0 48319,Control Cuircuit Transformer

    Hevi-Duty,Type SZ0 48319,Control Cuircuit Transformer 50/60 Cycles 0.300KVA

    • Manufacturer: Hevi-Duty

    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...

    $85 USD
    Galion, OH
  • Trusted Seller
    HAMMOND POWER SOLUTIONS NMK015KD 15

    HAMMOND POWER SOLUTIONS NMK015KD 15 kVA Transformer USED

    • Manufacturer: Hammond
    • Model: NMK015KD

    Dry Type Transformer 15 kVA 480 High Voltage 240 Low Voltage 3 Phase 60 Hz Type K Tested Good Expedited shipping services are available upon request. All taxes due are the responsibility of purchaser. V...

    $895 USD
    Holly, MI
  • Trusted Seller
    VAN DORN 370082-81 Power Supply

    VAN DORN 370082-81 Power Supply Transformer Used

    • Manufacturer: Van Dorn Demag

    Removed from: 300 Ton Van Dorn Injection Molding Machine Model: 300-RS-30F-HT Serial: 2252 Expedited shipping services are available upon request. All taxes due are the responsibility of purchaser. Visitors...

    $62 USD
    Holly, MI
2627282930

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.