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Pad-mounted distribution transformers

ANSI/IEC standards

Hitachi ABB Power Grids' pad-mounted transformers are mounted on the ground to service underground distribution networks. These transformers typically serve urban and rural residential, commercial and industrial loads. They offer the maximum amount of tamper resistance in the lowest profile design. 

ANSI single-phase pad-mounted transformers come equipped with a clamshell cabinet for ease of opening and uninhibited access to connections. Versatility of design allows for various protective and switching configurations.

ANSI three-phase pad-mounted cabinet offers a unique cabinet that features one piece sloped cabinet weather cover to effectively shed water and allow easier access into the cabinet compartment. The transformer can be configured for live and dead front high voltage connections along with radial or loop feed. Various switching and protection schemes can be integrated into the unit making for a low profile,  reliable and multi-functional transformer. 

Hitachi ABB Power Grids' generator step-up, three-phase pad-mounted transformers have been designed to meet the stringent standards for wind and solar farm demands. They would be mounted outside at the base of the tower while for solar can be stand-alone or part of a kiosk solution.

Three-phase, pad-mounted transformers can be outfitted with TPC protection system compensating for capacitive earth fault current in underground cables for the protection and safety of sensitive loads.

Product scope

  • Single-phase up to 250 kVA
  • Three-phase up to 3,000 kVA
  • Primary voltage up to 36 kV
  • Secondary voltages up to 690 V
  • Cooling type: ONAN
  • Available fluids: mineral oil, ester fluids and silicone

Why Hitachi ABB Power Grids?

  • Hitachi ABB Power Grids utilizes a focus factory concept which leads to great experience in specific products giving a very high level of consistency in design, manufacture and test
  • Hitachi ABB Power Grids has the biggest library of type tested designs
  • All Hitachi ABB Power Grids distribution transformers factories utilize the common design platform giving us best in class experience, consistency and repeatability
  • Hitachi ABB Power Grids has more distribution transformer factories than any other supplier, meaning we are always close to your project destination
  • Hitachi ABB Power Grids utilizes best in class manufacturing and quality processes to ensure that our transformers will meet the most stringent requirements
  • Hitachi ABB Power Grids has the widest portfolio of distribution transformer products meaning that our experience in providing solutions to challenging requirements is unrivalled
  • Hitachi ABB Power Grids leads the supply base in technological advancement with our Green-R-Trafo products

Get to know more

  • The EcoDesign Directive of the European Union and the related Regulation 548/2014 for transformer losses requires manufacturers to publish on the internet information on rated power, load loss, no-load loss and weight and type of the major components of typical transformers, which are compliant with the Regulation on. Such typical values are specified under EU EcoDesign product information for Tier 1 requirements.
  • Load loss and no-load loss values are maximum values with 0% upwards tolerance. If a value exceeds at factory routine testing the maximum value, the transformer is not compliant with the Regulation and it is not allowed to use it in the EU.
  • Note that the values indicated for the weights depend on each specific transformer specification and may vary. The values also depend on the exact grade of electrical steel to be used. Transformer designs and materials used are constantly changing with changing materials prices.
  • Hitachi ABB Power Grids can also provide transformers according to Tier 2 loss requirements and even lower losses. Hitachi ABB Power Grids is the leading manufacturer for ultra-efficient transformers,  as a company being itself fully dedicated to energy efficiency, and able to consult you for energy efficiency and sustainability.

Digital distribution transformer for ANSI / IEC standards

Hitachi ABB Power Gridss new TXpert™ distribution transformer provides valuable information on how the transformer is operating using integrated sensing technology.

Integrated sensing technology gathers data which can be used to calculate transformer consumed life and overall operating conditions. Data is stored for up to 20 years fully encrypted using the latest technology.

The internal WiFi network on TXpert is capable of connecting to several communications mediums using standard protocols using best practices in cyber security.  When wide area communications are enabled, real time data is available to transmit network conditions.

Resilient solution for distribution transformers in harsh environments

Utilities and industrial companies recognize the many causes of transformer tank degradation and are turning to stainless steel. However, stainless can be heavier and larger, creating the need for new pads and civil work at the replacement site.  With TXtreme, the transformer looks like a regular unit but has a coating system sturdy enough to outlast environmental factors.

The transformer incorporates breakthrough technology that is designed to provide the extra protection needed from harsh environments. The unique coating is on the tank, joints and cooling system. The new patented* coating system can survive the elements and help reduce operations and maintenance costs because there is no longer a need to touch up or repaint the transformer due to corrosion. Additionally, TXtreme provides superior protection against leaks.

 * Patent pending

Ingénieur de centrale électrique
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