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Used processing in USA

  • Trusted Seller
    MARELCO POWER SYSTEMS M-7710E /

    MARELCO POWER SYSTEMS M-7710E / CSA-008776-01 20KVA 230V TRANSFORMER

    • Manufacturer: MARELCO POWER SYSTEMS

    The Marelco Power Systems M-7710E / CSA-008776-01 is a used, industrial-grade dry-type transformer designed to deliver reliable voltage transformation in demanding electrical systems. With a 20 kVA capacity and a...

    $3,500 USD
    Detroit, MI
  • Wabash 5079 X13550242-02-0 Transformer Unit.

    Wabash 5079 X13550242-02-0 Transformer Unit. 4A-43.1

    • Manufacturer: Wabash

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $59 USD
    Duncan, SC
  • Acme Electric FS21500 Industrial Control

    Acme Electric FS21500 Industrial Control Transformer, 1500VA, 50/60HZ. 1D-40

    • Manufacturer: Acme

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $90 USD
    Duncan, SC
  • Trane X13590079-01 P/I 0691 Transformer.

    Trane X13590079-01 P/I 0691 Transformer. 4E-33

    • Manufacturer: Trane

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $23 USD
    Duncan, SC
  • URAKAWA 091-7071-37 Transformer, Magnet Coil-91018.

    URAKAWA 091-7071-37 Transformer, Magnet Coil-91018. 5E-8

    • Manufacturer: URAKAWA

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $36 USD
    Duncan, SC
  • Numatics 139-308P Transformer, 100-115/50 110-120/60.

    Numatics 139-308P Transformer, 100-115/50 110-120/60. 5D-32

    • Manufacturer: Numatics

    OEM spares from a plant maintenance room's canceled expansion project tool crib. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Pr...

    $41 USD
    Duncan, SC
  • Federal Signal 120B121K-05 Transformer, F1P20(F1P10)

    Federal Signal 120B121K-05 Transformer, F1P20(F1P10) 4E-33

    • Manufacturer: Federal Signal Corporation

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $47 USD
    Duncan, SC
  • EGS/SOLA E050D CONTROL TRANSFORMER, .050

    EGS/SOLA E050D CONTROL TRANSFORMER, .050 KVA, 240x480V, 24V. 4C-43

    • Manufacturer: Sola/Hevi-Duty

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $50 USD
    Duncan, SC
  • ACME AE06-0050 Transformer, 50VA. 4C-14

    ACME AE06-0050 Transformer, 50VA. 4C-14

    • Manufacturer: Acme

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $80 USD
    Duncan, SC
  • Allen Bradley 1497-E-BASX-3-N Series A,

    Allen Bradley 1497-E-BASX-3-N Series A, 0.250 KVA Transformer. 4B-33

    • Manufacturer: Allen-Bradley

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $100 USD
    Duncan, SC
  • DONGAN 50-1000-053 TRANSFORMER, 1KVA, 1PH,

    DONGAN 50-1000-053 TRANSFORMER, 1KVA, 1PH, 50/60HZ, 230x480/120. 1-E8

    • Manufacturer: Dongan

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $108 USD
    Duncan, SC
  • GE 9T51B0087 TRANSFORMER, 1 PHASE,

    GE 9T51B0087 TRANSFORMER, 1 PHASE, 60 Hz, 600/120x240V, 0.250kVA. 4E-32

    • Manufacturer: GE

    We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmetto Automation Inc. of Duncan SC specializes in b...

    $170 USD
    Duncan, SC
  • URAKAWA 055-6929-31 Transformer, Magnet Coil

    URAKAWA 055-6929-31 Transformer, Magnet Coil - 35999. 5E-8

    • Manufacturer: URAKAWA

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $32 USD
    Duncan, SC
  • Hammond PT75MQMJ-3 Transformer, 75VA 50/60Hz.

    Hammond PT75MQMJ-3 Transformer, 75VA 50/60Hz. 4B-34

    • Manufacturer: Hammond

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $54 USD
    Duncan, SC
  • SQUARE D 9070EL2D9 INDUSTRIAL CONTROL

    SQUARE D 9070EL2D9 INDUSTRIAL CONTROL TRANSFORMER. 1-E9

    • Manufacturer: Square D

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $86 USD
    Duncan, SC
123

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.