Pad Mounted Transformer

It is the standard way to distribute power in industrial parks, campuses, shopping centres, residential developments and anywhere an overhead line or fenced substation is impractical, ugly or unsafe.

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info@xsdfftransformer.com

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A pad mounted transformer sits on a concrete pad at ground level inside a lockable, tamper resistant steel enclosure. All live parts are inside the cabinet and accessible only with tools, so no fence is required.

It is the standard way to distribute power in industrial parks, campuses, shopping centres, residential developments and anywhere an overhead line or fenced substation is impractical, ugly or unsafe.

Technical Specifications

ParameterTypical Value
Rated capacity500 – 3150 kVA
Primary voltage11 kV / 22 kV / 33 kV
Secondary voltage400 V / 415 V
ConstructionOil immersed, sealed, compartmental type
CoolingONAN / KNAN
EnclosureLockable galvanised steel, tamper resistant, powder coated
CompartmentsSeparate HV and LV cable compartments
ProtectionBayonet or expulsion fuse, current limiting fuse, surge arresters, load break switch
StandardsIEC 60076 / IEEE C57.12.34
InstallationGround level concrete pad, outdoor

Typical values for this product family. Insert your certified datasheet values before publication — Hebei Youge Electrical Equipment Co., Ltd..

Applications

Advantages

Customization Options

Manufacturing, Testing and Standards

Every unit is built under documented process control and subjected to routine tests before dispatch: winding resistance, voltage ratio and vector group, impedance voltage and load loss, no-load loss and current, applied and induced voltage dielectric tests, and functional checks of accessories. Type tests — including lightning impulse, temperature rise and short-circuit withstand — are available for new designs and project requirements. See our testing and quality control pages.

Frequently Asked Questions

No. The enclosure is designed to be tamper resistant and all live parts are behind locked, tool-accessed panels, which is why pad mounts are used in public and landscaped areas.
A level reinforced concrete pad with cable ducts and, where required, an oil containment or drainage arrangement. We provide a foundation drawing with the quotation.
Pad mounted units are designed for outdoor installation. For indoor duty, a dry type or a ventilated room with oil containment is normally specified instead.
Radial feed has one incoming cable. Loop feed has two, allowing the transformer to be switched between sources or isolated for maintenance while the rest of the loop stays energised.
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