Wilson E2 super low loss amorphous transformers
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WILSON POWER SOLUTIONS WILSON e2 THE UK’S FIRST SUPER LOW LOSS AMORPHOUS DISTRIBUTION TRANSFORMER RADICALLY TRANSFORM YOUR ENERGY SAVINGS AND CO2 EMISSIONS

payback typically in just 2.5 years save £60k in energy costs during typical 25 year lifetime lower CO2 emissions by 15t per year

2 Contents 3 THE WILSON e2 TRANSFORMER - SAVING MONEY AND THE ENVIRONMENT 4 A TRANSFORMATION TO SAVE POWER 5 PAYBACK PERIOD ON EXTRA INVESTMENT AND LIFETIME SAVINGS 6 WHAT ARE AMORPHOUS METALS? 7 COMPARISON OF PROPERTIES 8 PLUS POINTS ON PERFORMANCE 9 TRANSFORMER LOSSES COMPARISON CHART CONTENTS WILSON e2 SUPER LOW LOSS AMORPHOUS TRANSFORMERS WILSON POWER SOLUTIONS

CO energy cost savings 2 emissions Groundbreaking energy savings Standard CRGO Wilson e2 Amorphous Low Loss CRGO The Wilson e2 Transformer – saving money and the environment The e2 from Wilson Power Solutions is the UK’s first super low loss amorphous distribution transformer. Wilson has pioneered the technology resulting in a unique transformer product with a range of 315kVA -2500kVA offering significant benefits to companies planning to: • address environmental responsibilities • drive down energy costs • radically improve carbon footprint Our Wilson e2 transformer combines amorphous...

A TRANSFORMATION TO SAVE POWER Traditional distribution transformers are contributing to important energy losses across diverse distribution networks. Why is this? Core losses are present in the transformers even when they are under no-load conditions; in addition, the load factor is very low UK-wide. Put together up to 3% of all electrical power generated is wasted through transformer losses worldwide. The core of the majority of today’s conventional transformers is made of CRGO steel. When this is replaced by amorphous metal (please see section “What are amorphous metals?” for more...

5 PAYBACK PERIOD ON EXTRA INVESTMENT AND LIFETIME SAVINGS With a typical payback time of under three years and truly impressive savings of both energy costs and CO2 emissions, more and more companies decide to invest in a Wilson e2 transformer. The chart below compares initial costs, payback period on extra investment, 25 years lifetime savings in energy costs and CO2 emissions between a standard CRGO transformer, a low loss CRGO transformer and our Wilson e2 super low loss amorphous transformer. The comparison is based on a 1,000 kVA transformer with 70% load factor (a conservative...

6 WHAT ARE AMORPHOUS METALS Amorphous metals are made of alloys which have no atomic order. The lack of systematic structure has given them the additional name metallic glasses. The first Amorphous Metal Transformers (AMTs) were produced in 1981. They were the result of an extensive study carried out by Luborsky of the General Electric Co., USA in 1978. Rapid cooling of molten metals prevents crystallization and leaves a vitrified solid with structure in the form of thin strips – a perfect energy saving substitute for CRGO – see graphic below. The random molecular structure of amorphous...

WILSON POWER SOLUTIONS 7 COMPARISON OF PROPERTIES Properties Unit Amorphous metal CRGO Steel Density (g/cm3) 7.15 7.65 Specific resistance 130.00 45.00 Saturation flux density (Tesla) 1.56 2.03 Typical core loss (at 50 Hz, 1.4 Tesla) Watt/kg 0.20 0.90 Thickness mm 0.025 0.27 Space factor 0.86 0.97 Brittleness Higher Lower Available form Ribbon/foil (standard sizes-142.2mm, 172.2 mm & 213.4 mm) Sheet/Roll Annealing temperature °C 360 810 Annealing atmosphere Inert gas Inert gas Special annealing requirement Magnetic field annealing - properties Comparison of Tap into our transformers to...

WILSON POWER SOLUTIONS 8 In amorphous metal core transformers, core losses can be reduced by up to 75% compared with CRGO transformers assuming that performance parameters like load loss (copper loss), impedance and temperature rise remain constant. The tables below illustrate typical losses of a 1000 kVA standard CRGO transformer, low loss CRGO transformer and the Wilson e2 super low loss amorphous transformer. The Wilson e2 shows the lowest total losses with core losses reduced by 62%. on performance Plus points PLUS POINTS ON PERFORMANCE Load losses (copper losses) Losses (w) 10,000...

9 kVA Standard CRGO transformer Higher grade Low loss CRGO transformer Wilson e2 Core losses NLL Copper losses LL Core losses NLL Copper losses LL Core losses NLL Copper losses LL 315 600 5,350 365 3,850 175 3,850 500 900 7,400 560 5,000 215 5,000 800 1,150 11,000 900 7,300 300 7,300 1000 1,350 12,500 1,070 7,700 500 7,700 1250 1,575 16,000 1,350 10,700 620 10,700 1500 1,700 21,000 1,575 14,000 675* 14,000 2000 2,300 24,000 1,900 19,000 800* 15,000 comparison chart Transformer losses The table below compares typical core and copper losses for different transformer ratings and designs....

"Tesco is installing the Wilson e2 transformer into its estate as we believe it will assist us to improve our emissions target whilst helping us achieve our commercial constraints. The team at Wilson Power Solutions have shown strong technical expertise and customer service." Daniel Travers, Tesco Corporate Purchasing Wilson Power Solutions Westland Square, Leeds, LS11 5SS, UK. Tel: +44 (0)113 271 7588 Fax: +44 (0)113 277 5124 www.wilsonpowersolutions.co.uk Power & Distribution Transformers Limited trading as ‘Wilson Power Solutions’ Registered in England No. 2922294 Registered Office:...