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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
  • ALLEN BRADLEY S91854 Rev 02

    ALLEN BRADLEY S91854 Rev 02 Drive Control Transformer. 4C-42

    • 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, ...

    $389 USD
    Duncan, SC
  • URAKAWA 063-2022-15 Transformer, Magnetic Coil

    URAKAWA 063-2022-15 Transformer, Magnetic Coil - 36333. 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
  • Waltec 2016.058/00 350VA Auto Transformer.

    Waltec 2016.058/00 350VA Auto Transformer. 4E-19

    • Manufacturer: Waltec

    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...

    $44 USD
    Duncan, SC
  • Hammond PH250MQMJ Transformer, 250VA 50/60Hz.

    Hammond PH250MQMJ Transformer, 250VA 50/60Hz. 4B-33

    • 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, ...

    $43 USD
    Duncan, SC
  • Micron B075MBT713RN 75VA Transformer, PRI

    Micron B075MBT713RN 75VA Transformer, PRI 208-460V, SEC 24-115V. 4D-25

    • Manufacturer: Micron

    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...

    $74 USD
    Duncan, SC
  • Micron B500WZ13RK ImperviTran Control Transformer

    Micron B500WZ13RK ImperviTran Control Transformer 500VA 50/60Hz 4B

    • Manufacturer: Micron

    Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost parts at decent wholesale prices. Buy with confidence. Money back guarantee. We repair all types of industrial automation including AC ...

    $87 USD
    Duncan, SC
  • GE 9T51B0085 TRANSFORMER, 0.150kVA, 60Hz,

    GE 9T51B0085 TRANSFORMER, 0.150kVA, 60Hz, 600/120/240V. 4E-29

    • 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...

    $98 USD
    Duncan, SC
  • GE 9T51B29 .750kVA 60Hz TYPE-QB

    GE 9T51B29 .750kVA 60Hz TYPE-QB Transformer, 120/240V. 4E-28

    • 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...

    $90 USD
    Duncan, SC
  • GE 9T51B0105 0.150kVA Phase 1

    GE 9T51B0105 0.150kVA Phase 1 60Hz 120x240/12x24V Buck Boost Transformer. 4F-21

    • 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...

    $122 USD
    Duncan, SC
  • 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
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.