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Used performance in Texas, USA

  • GE 112.5 KVA Transformer Cat

    GE 112.5 KVA Transformer Cat No. 9T231338 🟦

    • Manufacturer: GE

    GE 112.5 KVA Transformer Cat No. 9T231338 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosmetic imperfectio...

    $2,417 USD
    Arlington, TX
  • Siemens 15kVA 480V 60Hz Transformer

    Siemens 15kVA 480V 60Hz Transformer 240/120 1D1NO15 🟦

    • Manufacturer: Siemens

    Siemens 15kVA 480V 60Hz Transformer 240/120 1D1NO15 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosmetic i...

    $1,117 USD
    Arlington, TX
  • GE 150kVA 480V 3R Transformer

    GE 150kVA 480V 3R Transformer 208Y/120 9T23B397 🟦

    • Manufacturer: GE

    GE 150kVA Transformer Cat No. 9T23B3976 60 Hz 3 Phase ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosmetic...

    $2,713 USD
    Arlington, TX
  • Hps 45kVA 480V 3R 208Y/120

    Hps 45kVA 480V 3R 208Y/120 Transformer 3P 60Hz 213073 🟦

    • Manufacturer: Caterpillar

    Hps 45kVA 480V 3R 208-120 Transformer 3P 60Hz 213073 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosmetic ...

    $1,217 USD
    Arlington, TX
  • Square D 300KVA 480V 3

    Square D 300KVA 480V 3 PH General Purpose Transformer EE300T68HFISCUNLP 🟦

    • Manufacturer: Square D

    Square D 300KVA 480V 3 PH General Purpose Transformer Cat No. EE300T68HFISCUNLP ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs...

    $5,552 USD

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    Est. $109/mo

    Arlington, TX
  • Square D 225kVA 480V Transformer

    Square D 225kVA 480V Transformer 60Hz 225T3H 🟦

    • Manufacturer: Square D

    Square D 225kva 480Y/277V Transformer 60Hz Cat No. 225T3H ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosm...

    $4,317 USD
    Arlington, TX
  • Hps 45Kva 480Y/277V 3R Transformer

    Hps 45Kva 480Y/277V 3R Transformer 3P 60Hz 213073 🟦

    • Manufacturer: Caterpillar

    Hps 45Kva 480Y/277V 3R Transformer 3P 60Hz Cat No. 213073 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosm...

    $1,217 USD
    Arlington, TX
  • HPS 45 Kva Transformer 480Y/277V

    HPS 45 Kva Transformer 480Y/277V Type 3R 3P 213073 🟦

    • Manufacturer: Caterpillar

    HPS 45Kva Transformer 480Y/277V Type 3R 3P Cat No. 213073 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosm...

    $1,217 USD
    Arlington, TX
  • GE 15kVA Transformer 480V 60Hz

    GE 15kVA Transformer 480V 60Hz 3P 4W 240/120 9T21B9105 🟦

    • Manufacturer: GE

    GE 15kVA Transformer 480V 60Hz 3P 4W 240/120 9T21B9105 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cosmeti...

    $963 USD
    Arlington, TX
  • ITE 112.5 KVA 480V 3Ph

    ITE 112.5 KVA 480V 3Ph 60Hz Type 2 Power Transformer Cat No. 3F31112 🟦

    • Manufacturer: ITE

    ITE 112.5 KVA 480V 3Ph 60Hz Type 2 Power Transformer Cat No. 3F31112 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents,...

    $2,309 USD
    Arlington, TX
  • CTI 30Kva 504Y/291V 3R Transformer

    CTI 30Kva 504Y/291V 3R Transformer 3PH 50/60Hz Cat No. 2041556K1 🟦

    • Manufacturer: Caterpillar

    CTI 30Kva 504Y/291V 3R Transformer 3PH 50/60Hz Cat No. 2041556K1 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, the...

    $711 USD
    Arlington, TX
  • FPT 150kVA 480V 60Hz 3P

    FPT 150kVA 480V 60Hz 3P 4W 208Y/120 Transformer T4T150SK13 🟦

    • Manufacturer: SK

    FPT 150kVA 480V 60Hz 3P 4W 208Y/120 Transformer T4T150SK13 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, these cos...

    $3,217 USD
    Arlington, TX
  • ITE 225kVA 480V 208Y/120 Transformer

    ITE 225kVA 480V 208Y/120 Transformer 3PH 3F3Y225🟦

    • Manufacturer: ITE

    I-T-E Power Transformer 225kVA 480V 208Y/120 3PH CAT NO: 3F3Y225 ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, or dents, the...

    $4,317 USD
    Arlington, TX
  • Siemens 225kVA 480V 208Y/120 Dry

    Siemens 225kVA 480V 208Y/120 Dry Type Transformer 3Ph 60Hz 3F3Y225 🟦

    • Manufacturer: Siemens
    • Model: 3F3Y225

    Siemens 225kVA 480V Dry Type Transformer 3Ph 60Hz 3F3Y225 Stepdown: 208Y/120V ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, ...

    $4,362 USD
    Arlington, TX
  • Square 112.5 480V Dry Type

    Square 112.5 480V Dry Type Transformer 3Ph 60Hz EXN112T3H 🟦

    • Manufacturer: Square D

    Square 112.5 480V Dry Type Transformer 3Ph 60Hz EXN112T3H Stepdown: 208Y/120V ***30-day Warranty- Guaranteed to work or your money back.*** ***This item may exhibit signs of prior use, such as scratches, scuffs, ...

    $2,319 USD
    Arlington, TX
12

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.