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Used basic in USA

  • 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
  • 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
  • GE 9T58E0163 CORE & COIL

    GE 9T58E0163 CORE & COIL TRANSFORMER. Loc4F37

    • Manufacturer: GE

    GE 9T58E0163 CORE & COIL 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 equi...

    $351 USD
    Duncan, SC
  • GE 9T51B0030 Transformer, 1.00kVA, 1

    GE 9T51B0030 Transformer, 1.00kVA, 1 Phase, 60Hz, 120x240V(120/240V) 4D-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...

    $1,080 USD
    Duncan, SC
  • GE CR308XT204A Control Power Transformer

    GE CR308XT204A Control Power Transformer Kit Size 2 240/480V. Loc4E-19

    • Manufacturer: GE

    GE CR308XT204A Control Power Transformer Kit Size 2 240/480V. Loc4E19* Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used, Refurbished, and New industrial elect...

    $80 USD
    Duncan, SC

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.