This website uses cookies primarily for visitor analytics. Certain pages will ask you to fill in contact details to receive additional information. On these pages you have the option of having the site log your details for future visits. Indicating you want the site to remember your details will place a cookie on your device. To view our full cookie policy, please click here. You can also view it at any time by going to our Contact Us page.;2714294;369307;211;0/?ft_width=1&ft_height=1&url=16151650

Food manufacturer saves almost £70K and boosts site power capacity by 30%

17 April 2015

Marshall-Tufflex Power Factor Correction Unit gives 30% increase in site power capacity.

Managing the power demands of an expanding food producer was proving a challenge for electrical contractor Chris Short. The award-winning Welsh manufacturer had extended its production facilities to more than 13,000ft² and was looking to install new equipment and machinery to meet demand for its high quality chilled and frozen products. But the site was operating at the very limits of its power capacity – daily it drew 275 Amps from an absolute maximum supply capacity of 300 Amps.

Mr Short, of Electroserve Installations in South Wales, knew that the electrical infrastructure in the factory's location was unable to deliver more than 300 Amps to the site which meant considering a new on-site sub-station at a cost of around £60,000. Until he did the calculations for a Marshall-Tufflex Power Factor Correction unit. The numbers showed that PFC could reduce the daily usage figure from 275 Amps to 210 Amps, giving an immediate 30% increase in site power capacity.

The PFC unit was specified together with a Marshall-Tufflex Voltis ECO 300 Amp multi-tapping voltage optimisation system, which alone is estimated has saved the food producer around £7,500 per annum. Added to this is an annual saving of more than £1,800 because the company no longer pays reactive energy charges thanks to the PFC unit. The total investment in this energy management project was recouped in around nine months.

Installation of the PFC and Voltis ECO units was planned over two weekends with power outage required for just one Sunday when the factory was not operational, minimising disruption to production. Post installation the site’s Power Factor went from an unsatisfactory 0.71 to an impressive 0.99, with 1 (unity – the optimum level) displayed periodically. Importantly the PFC unit works intelligently to only correct the power supply when required, maximising savings.

Installation of the Power Factor Correction unit has delivered the extra power capacity required, eradicated reactive energy charges and ensured factory machinery and equipment, including large numbers of fridges and freezers, runs more efficiently and lasts longer. Power drops over long cable runs have also been improved. For Mr Short and the factory management it is a win-win situation, particularly since the manufacturer secured European grant aid to help fund the project.

Power Factor Correction (PFC) is an established and proven energy saving technology used to improve the operating efficiency of electrical systems by reducing reactive power. Banks of capacitors neutralise the magnetising current, essentially balancing the inductive and capacitive elements. This reduces current drawn from the power distribution network and therefore also reduces bills and carbon emissions. For electrical contractors experienced in working with three-phase systems and currents of 300 Amps or more Power Factor Correction units are straightforward to install.

Quicker installation, faster payback and greater in-use flexibility are offered by Marshall-Tufflex’s cost-effective Voltis ECO range of 3-phase multi-tap voltage optimisation units, which appeal to users requiring an entry level ‘no-frills’ approach to voltage optimisation. The units are available direct from electrical wholesalers with three ‘tapping’ settings. Installers determine the ECO unit required (100A, 200A, 300A or 400A) and select the most appropriate tapping setting (which can be altered should mains voltage levels change significantly in the future). This multi-tap transformer approach drops the voltage by 11%, 9% or 6%, depending upon the level of incoming Mains (245 Volts or above, 240 Volts or 235 Volts).

Print this page | E-mail this page


Article image Anheuser-Busch InBev’s distribution strategy model

Over the past 10 years Anheuser-Busch InBev (A-B InBev) has grown its global distribution network using a strategy which goes against the grain for traditional brewery specifications. In place of cost and time intensive permanent structures, it has adopted a design-driven approach in partnership with Herchenbach, a manufacturer of temporary buildings and semi-permanent warehouses. Full Story...

Article image Getting the best out of PLCs

PLCs are something of an industry giant, so why is there still apprehension when engineering issues arise? Food Processing investigates.Full Story...

What role does refrigeration play in the supply chain?

Gently does it

Time to take steps to reduce plastic waste