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Used Distribution Transformers

  • Trusted Seller
    TRACON ENGINEERING 3T675208

    TRACON ENGINEERING 3T675208

    • Manufacturer: Tracon
    • Phase type: Three-phase

    Kva: 75 kVA | Primary voltage: 600 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry

    $2,319 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA CDTC0015VHA6XXBA

    DELTA CDTC0015VHA6XXBA

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 15 kVA | Primary voltage: 600 volts | Secondary voltage: 120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 1

    $1,070 USD
    British Columbia, Canada
  • Trusted Seller
    2001 DELTA CDTC0045S001524

    2001 DELTA CDTC0045S001524

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 600 volts | Secondary voltage: 600/347 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Frequency: 60 Hz

    $2,032 USD
    British Columbia, Canada
  • Trusted Seller
    BEAVER SEJ3NG8A

    BEAVER SEJ3NG8A

    • Manufacturer: BEAVER
    • Phase type: Single-phase

    Kva: 3 kVA | Secondary voltage: 240/120 volts | Phase: Single-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R | Frequency: 60 Hz

    $433 USD
    British Columbia, Canada
  • Trusted Seller
    REX POWER MAGNETICS RA75J-H/N/X

    REX POWER MAGNETICS RA75J-H/N/X

    • Manufacturer: Rex Power Magnetics
    • Phase type: Three-phase

    Kva: 75 kVA | Primary voltage: 600 volts | Secondary voltage: 480 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Auto | Oil vs dry: Dry | Enclosure type: Nema 3R

    $1,726 USD
    British Columbia, Canada
  • Trusted Seller
    REX POWER MAGNETICS RC45H-B

    REX POWER MAGNETICS RC45H-B

    • Manufacturer: Rex Power Magnetics
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 480 volts | Secondary voltage: 208 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Auto | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,574 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA CD3C0015VHA6XXBA

    DELTA CD3C0015VHA6XXBA

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 15 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 1

    $875 USD
    British Columbia, Canada
  • Trusted Seller
    SQUARE D C300T79HX

    SQUARE D C300T79HX

    • Manufacturer: Square D
    • Phase type: Three-phase

    Kva: 300 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 1

    $6,412 USD

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    Est. $126/mo

    British Columbia, Canada
  • Trusted Seller
    2002 DELTA CETC0075S001535

    2002 DELTA CETC0075S001535

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 75 kVA | Primary voltage: 600 volts | Secondary voltage: 600/347 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $3,166 USD
    British Columbia, Canada
  • Trusted Seller
    2002 DELTA CETC0075S001535

    2002 DELTA CETC0075S001535

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 75 kVA | Primary voltage: 600 volts | Secondary voltage: 600/347 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $3,166 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA EVI CETC0045-S001532

    DELTA EVI CETC0045-S001532

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,356 USD
    British Columbia, Canada
  • Trusted Seller
    HAMMOND NMT20K030KBK

    HAMMOND NMT20K030KBK

    • Manufacturer: Hammond
    • Phase type: Three-phase

    Kva: 30 kVA | Primary voltage: 480 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,035 USD
    British Columbia, Canada
  • Trusted Seller
    2003 DELTA CETC0045S001532

    2003 DELTA CETC0045S001532

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,761 USD
    British Columbia, Canada
  • Trusted Seller
    2002 DELTA CETC0045S001532

    2002 DELTA CETC0045S001532

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,761 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA CETC0045S001532

    DELTA CETC0045S001532

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 45 kVA | Primary voltage: 600 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,761 USD
    British Columbia, Canada
2021222324

Overview

Distribution transformers step down medium-voltage power to the lower voltages used by homes, businesses and local grids. They come as oil-filled or dry-type units, with features like on-load tap changers, conservators and cooling systems. Buyers look for capacity (kVA/MVA), voltage ratings, insulation condition and transportability when selecting used units for substations or commercial sites.

FAQ

What should I inspect when buying a used distribution transformer?

Check the nameplate ratings, kVA and voltage class, manufacturing date, oil condition or insulation status, tap changer condition, bushing integrity, maintenance and fault records, and results of recent electrical tests (insulation resistance, turns ratio, winding resistance, and DGA if oil-filled).

How do I ship a distribution transformer safely?

Use heavy-equipment carriers with proper lifting gear and blocking. For oil-filled units confirm local rules—some jurisdictions require draining or special containment. Secure and protect bushings and tap changers, use skid or frame supports, and arrange permits/escort for oversized loads.

What regular maintenance does a distribution transformer need?

Perform periodic visual inspections, oil testing (DGA, moisture, acidity) for oil-filled units, check and service tap changers, clean and tighten bushings and connections, monitor temperature and load, and repair leaks or corrosion promptly. Follow manufacturer intervals and keep detailed records.