TRANSFORMERS


When the chips are down - replace your transformer & save £22.5k annually!


At its UK manufacturing centre, McCain - the ‘oven chips giant’ - ordered the replacement of an old 1.6MVA, 11kV:433V, CRGO transformer (manufactured in 2006) with a Wilson e2, 2MVA, 11kV;415V, 2021 Eco Design compliant, super low loss, amorphous core transformer. Combined with a reduction in supply voltage, this project has delivered clear energy savings of 273,00kWh and financial savings of over £22,500 per year, reports UKPN.


of restaurants and supermarket freezers in more than 160 countries - one in every three French fries in the world is a McCain fry. In addition to fries, McCain also produces


M


other foods, including snacks, meals and vegetables for both the retail and foodservice industries. Like most UK manufacturers these days,


the company has been keen to reduce costs, improve efficiency and (most of all) save energy. That’s why, at one of its UK-based manufacturing centres, McCain ordered the


cCain introduced oven chips to Britain in 1979. Nearly 40 years on the global giant produces products which can be found in thousands


replacement of an old 1.6MVA, 11kV:433V, CRGO transformer which had been manufactured in 2006. McCain has substituted its old 2006 model


transformer for a Wilson e2, 2MVA, 11kV;415V, 2021 Eco Design-compliant, super low loss, amorphous core transformer. Measurements show that the installation of


the Super Low loss Amorphous Transformer, combined with voltage reduction, has now reduced the kWh used. A further 2.5% reduction of site voltage (Tap 3) has delivered significant additional energy savings, reports Wilson Power Solutions Limited. A study undertaken on behalf of McCain determined that there certainly were energy


“McCain has substituted its old 2006 model


transformer


with a Wilson e2, 2MVA,


11kV;415V, 2021 Eco Design-


compl iant, super


low loss,


amorphous core


transformer, made by


Wilson Power Solutions.”


savings to be made by replacing the existing CRGO transformer (Sub 1, T2) with a modern, super low loss, amorphous core transformer. According to Wilson Power Solutions


Limited the voltage supplied to many sites is higher than it needs to be. The network operator often keeps the Primary Voltage high to reduce transmission losses while keeping the voltage within statutory limits for all customers on the network. Most sites have a L-N voltage of 240V or


higher giving rise to equipment running at inappropriate levels resulting in additional costs, reports the company. Reducing and maintaining the voltage at


the most favourable level is an established way to significantly reduce energy consumption and costs whilst having the additional benefits of reduced maintenance and increased equipment life. McCain’s old transformer was subsequent-


ly decommissioned and completely replaced with a Wilson Power Solutions e2, 2021 Eco Design Compliant, 11kV:415V, 2MVA Super Low Loss, Amorphous Core ‘Replacement’ transformer. The net result has been a reduction in


supply voltage and the delivery of welcome energy savings of 273,00kWh - and financial savings of over £22,500 per year. www.wilsonpowersolutions.co.uk


34 JULY - AUGUST 2018 UK Power NewS


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