Express Delivery of stock transformers

Wilson Power Solutions now hold finished stock of Tier 2 (EU Eco Design Directive) compliant ground mount distribution transformers, ready for next day (or 48h) express deliveries.

All stock transformers for next day /48h delivery are offered as ‘box-to-box’ type and come with the following base specification:
HV off load tap changer with additional tap setting (+/-2.5%, +/-5.0%, +7.5%),
Bottom entry HV cable box suitable for 1 x 3c cable,
LV cable box suitable for 3 x 1c cable per phase and neutral.

Our stock for next day /48h delivery includes:

Wilson E2 super low loss amorphous range (Eco Design Tier 2 compliant, liquid filled distribution transformers) with the following ratings:

  • 315kVA
  • 500kVA
  • 800kVA
  • 1000kVA
  • 2000kVA

Additional Accessories

Where you require additional accessories such as Oil Temperature Indicator (OTI), Winding Temperature Indicator (WTI), Magnetic Oil Gauge, Pressure Relief Device (PRD), or Conservator & Bucholz Relay, then lead times will extend out a little to 2-4 weeks depending on our production workload at the time. If you require MV or LV Switchgear on your transformer please contact us for a lead time to confirm details. For all other ratings (at standard specifications), or if finished stock levels have been depleted, our typical lead times are now between 6 and 8 weeks.

Find the Wilson e2 in over 600 locations with over 700 installs:

The Wilson e2 provides two areas of savings:

1) Guaranteed savings through reduced transformer losses
The Wilson e2 transformer is a unique product combining amorphous core material with low current density conductors to provide lowest combined transformer losses. Based on an average 25-year transformer lifespan, a 1000kVA Wilson e2 transformer can achieve up to £100,000 worth of energy costs savings through loss savings if replacing an old, inefficient transformer and typically saves £50,000 when compared with a modern, tier 1 eco design compliant unit (Wilson e1).

2) Substantial potential savings through Voltage Optimisation
The Wilson e2 transformer is manufactured to provide a lower nominal voltage of 415V (11kV/415) and designed to deliver a lower output voltage than standard rated 11kV/433 units. In addition the Wilson e2 comes with an extended tapping range at no extra cost allowing you to further adjust output voltage when needed. What savings can be achieved does depend on your load, our customers typically achieve  3-8%% reduction of their electricity consumption.

The Wilson e2 super low loss amorphous transformer can be supplied for ratings from 315 kVA to 3000 kVA.


What are Amorphous Metal Core Transformers?

The cores of conventional transformers consist of stacks of lamination that are made from silicon steel with an almost uniform crystalline structure (CRGO). In transformers with amorphous cores, a ribbon of steel is wound forming the core.

The big benefit of amorphous metal core transformers is that amorphous steel has lower hysteresis losses. Simply put this means that less energy is wasted in magnetising and demagnetising it during each cycle of the supply current. The infrared pictures (left) illustrate this: The AMT core shows a lot less heat than the CRGO core.



Over 90 Wilson e2 transformers have been installed to sites across the UK for Tesco Stores, with no failures or recalls having ever been required. It has reduced Tesco’s wasted energy by over 9 million kWh and saves the company over an estimated £810,000 a year. This case study outlines the incredible savings tesco are making and demonstrates how reliable our transformers are.

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The seven Wilson e2 transformers we have installed for the University Hospital of South Manchester save them £31,000 a year, meaning the transformer has paid for itself in under 3 years. This is a fantastic case study in how large organisations can make a practical and noticeable difference in their energy efficiency without compromising on their current usage.

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Founded on “good and responsible” business ethics, McCain installed a Wilson e2 based on the transformer’s super low loss capacity, decreasing their energy wastage and reducing their carbon footprint 12 tons of CO2 a year. The Wilson e2 has subsequently reduced costs by £22,500 per year while also reducing the energy wasted by over 272,000 kWh.

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Smurfit Kappa

After reviewing their on site energy efficiency, Smurfit Kappa made the decision to reduced supply voltage cand install our Wilson e2 with its super low loss amorphous core. They now save £10,500 annually and have reduce their energy usage by 99,176 kWh, decreasing their overall energy usage by 3.5%.

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How much energy can be saved?

The core of the majority of today’s transformers is made of CRGO steel. When this is replaced by amorphous metal, the core loss of the transformer is reduced by as much as 75%.

Why use Amorphous Metal?

• Up to 75% energy saving over conventional silicone steel (CRGO)
• Reduced carbon dioxide emissions
• Reduction in fossil fuel consumption
• Reduced magnetising current
• Reduced temperature rise of core

What are amorphous metals?

Also known as metallic glass alloys, they differ from traditional metals in that they have a non-crystalline structure and possess unique physical and magnetic properties that combine strength and hardness with flexibility and toughness.


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