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Used control unit in China

  • Transformer Corrugation Fin Distribution Transformer

    Transformer Corrugation Fin Distribution Transformer Design

    • Manufacturer: EN-SOURCE

    I General Layout for Transformer Corrugation Fin Production Line (fin forming, fin seam&edges welding, reinforcing rod welding, spot welding, vertical bending and tank assembling) Build up of Transformer Corrugat...

    Zhejiang, China
  • Distribution Transformer Spot Welding Machine

    Distribution Transformer Spot Welding Machine Fin Embossment

    • Manufacturer: EN-SOURCE

    I General Layout for Transformer Corrugation Fin Production Line (fin forming, fin seam&edges welding, reinforcing rod welding, spot welding, vertical bending and tank assembling) Build up of Transformer Corrugat...

    Zhejiang, China
  • 2000 kva three phase pad

    2000 kva three phase pad mounted transformer

      2000 kva three phase pad mounted transformer is a complete set of transformer and distribution equipment that combines combined transformer, load switch and protective fuse device of high-voltage power receiving ...

      Beijing, China

    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.