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Used Distribution Transformers

  • Trusted Seller
    HAMMOND Model 98A

    HAMMOND Model 98A

    • Manufacturer: Hammond
    • Phase type: Three-phase

    Comes with factory installed digital temperature controller and Neoprene vibration isolation kit Brand new, in box, unused. Square D Digital Temperature Controller:

    $3,487 USD
    British Columbia, Canada
  • Trusted Seller
    POLYGON JEFFERSON ELECTRIC 5H3-450C-45A

    POLYGON JEFFERSON ELECTRIC 5H3-450C-45A

    • Manufacturer: POLYGON JEFFERSON ELECTRIC
    • Phase type: Three-phase

    Kva: 330 kVA | Primary voltage: 575V | Secondary voltage: 460/266V | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Style: 5H3-450C-45A | Basic ins...

    $13,077 USD

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    Est. $257/mo

    British Columbia, Canada
  • Trusted Seller
    GS DT1121H30TS

    GS DT1121H30TS

    • Manufacturer: GS
    • Phase type: Three-phase

    Kva: 30 kVA | Primary voltage: 480 volts | Secondary voltage: - 416Y/240 V | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Primary amps: - 36 A | ...

    $799 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA CD3C0075VHA6XXBA

    DELTA CD3C0075VHA6XXBA

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 75 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

    $2,344 USD
    British Columbia, Canada
  • Trusted Seller
    HAMMOND MANUFACTURING 146221

    HAMMOND MANUFACTURING 146221

    • Manufacturer: Hammond
    • Phase type: Three-phase

    Kva: 4480 kVA | Primary voltage: 4160 volts | Secondary voltage: 600/347 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nem...

    $163,463 USD

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    Est. $3,076/mo

    British Columbia, Canada
  • Trusted Seller
    BEAVER SC37CE

    BEAVER SC37CE

    • Manufacturer: BEAVER
    • Phase type: Single-phase

    Kva: 37.5 kVA | Primary voltage: 240 volts | Secondary voltage: 347 volts | Phase: Single-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nem...

    $490 USD
    British Columbia, Canada
  • Trusted Seller
    REX POWER MAGNETICS BA30J-P/Z3

    REX POWER MAGNETICS BA30J-P/Z3

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

    Kva: 30 kVA | Primary voltage: 600 volts | Secondary voltage: 480 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R

    $2,855 USD
    British Columbia, Canada
  • Trusted Seller
    REX POWER MAGNETICS BA30J-M/Z3

    REX POWER MAGNETICS BA30J-M/Z3

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

    Kva: 30 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 3...

    $1,885 USD
    British Columbia, Canada
  • Trusted Seller
    DELTA CETC0075S001534

    DELTA CETC0075S001534

    • Manufacturer: Delta
    • Phase type: Three-phase

    Kva: 75 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 3...

    $4,519 USD
    British Columbia, Canada
  • Trusted Seller
    BEMAG 423-5219-000

    BEMAG 423-5219-000

    • Manufacturer: BEMAG
    • 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 3...

    $2,543 USD
    British Columbia, Canada
  • Trusted Seller
    2002 SQUARE D C75T8HCU

    2002 SQUARE D C75T8HCU

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

    Kva: 75 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 2...

    $2,339 USD
    British Columbia, Canada
  • Trusted Seller
    2002 SQUARE D C75T8HCU

    2002 SQUARE D C75T8HCU

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

    Kva: 75 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 2...

    $2,339 USD
    British Columbia, Canada
  • Trusted Seller
    2002 SQUARE D C75T8HCU

    2002 SQUARE D C75T8HCU

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

    Kva: 75 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 2...

    $2,339 USD
    British Columbia, Canada
  • Trusted Seller
    SQUARE D C75T8HCU

    SQUARE D C75T8HCU

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

    Kva: 75 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 2...

    $2,339 USD
    British Columbia, Canada
  • Trusted Seller
    FEDERAL PACIFIC T24SH2Y-75

    FEDERAL PACIFIC T24SH2Y-75

    • Manufacturer: Federal Pacific
    • Phase type: Three-phase

    Kva: 75 kVA | Primary voltage: 240 volts | Secondary voltage: 208/120 volts | Phase: 3-phase | Transformer type: Distribution Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Made in: MEXICO | Freq...

    $2,906 USD
    British Columbia, Canada
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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.