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Used Power Transformers

  • Sola EGS E200 Heavy Duty

    Sola EGS E200 Heavy Duty Transformer 4C-26

    • Manufacturer: Sola EGS

    Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used, Refurbished, and New industrial electronic equipment. Most of our used equipment goes through basic power bench t...

    $72 USD
    Duncan, SC
  • Powertran 3PTN305-27K-DIT, 27 KVA, H.V-230,

    Powertran 3PTN305-27K-DIT, 27 KVA, H.V-230, L.V-230Y/133 3PH Transformer - USED

    • Manufacturer: Powertran

    USED Item was powered up working, unit also has hole knockouts refer to pictures. Powertran 3PTN305-27K-DIT, 27 KVA, H.V-230, L.V-230Y/133 3PH Transformer Item is guaranteed to not be DOA for replacement or refun...

    $900 USD
    Kawkawlin, MI
  • Square D 9070T5000D1 Transformer H.L.

    Square D 9070T5000D1 Transformer H.L. 240V/480V, L.V.110V/120V, 3/5 Kva, 1 Phase

    • Manufacturer: Square D

    USED Square D 9070T5000D1 Transformer H.L. 240V/480V, L.V.110V/120V, 3/5 Kva, 1 Phase Item is guaranteed to not be DOA for replacement or refund within 30 days of receiving. Item is sold as pictured. The item you...

    $522 USD
    Kawkawlin, MI
  • Eaton V48M31T15E6 Dry-Type Transformer, 15kVA,

    Eaton V48M31T15E6 Dry-Type Transformer, 15kVA, 480 Delta HV, 220Y/127 LV - USED

    • Manufacturer: Eaton

    USED Item has multiple knockouts, refer to pictures Eaton V48M31T15E6 Dry-Type Transformer, 15kVA, 480 Delta HV, 220Y/127 LV Item is guaranteed to not be DOA for replacement or refund within 30 days of receiving....

    $769 USD
    Kawkawlin, MI
  • Reliance Electric 612180-601R TRANSFORMER. Loc4B-18

    Reliance Electric 612180-601R TRANSFORMER. Loc4B-18

    • Manufacturer: Reliance Electric

    RELIANCE ELECTRIC 612180-601R TRANSFORMER. Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used, Refurbished, and New industrial electronic equipment. Most of our used...

    $116 USD
    Duncan, SC
  • Dongan 63-27118SH 118 KVA 3

    Dongan 63-27118SH 118 KVA 3 Phase Transformer

    • Manufacturer: Dongan

    “Scratches, dust, etc.” Unused transformer, some scratches etc. Check pictures for specs. Prefer local pickup but can load if buyer wants to arrange shipping from 29673. Ask any questions before purchasing.

    $2,500 USD
    Piedmont, 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
  • 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
  • 741-40647/19,0996.350,TNMBN1K25/VS,TNM BN 1K25/VS | Trasfor

    741-40647/19,0996.350,TNMBN1K25/VS,TNM BN 1K25/VS | Trasfor Typ TNMBN1K25/VS 1PH Transformer 208/480V 1.25kVA 0996.350 741-40647/19 - Used

    • Manufacturer: Trasfor

    $265 USD
    Baroda, MI
  • 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
  • Square D 9070TF300D1 Transformer. Loc4D-24

    Square D 9070TF300D1 Transformer. Loc4D-24

    • Manufacturer: Square D

    Square D 9070TF300D1 Transformer. Loc4D-24* We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palm...

    $262 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
  • 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
4647484950

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.