PowerSave reduces your electricity costs
July 04th 2007 PowerSave energy saving equipment can reduce the site voltages to a lower level and save up to 25% of running costs
After thirteen years, the final step to harmonize European supply voltages of 230V ± 10% is scheduled for January 2008. The new statutory incoming supply limits of 207V to 253V will then come into force, yet the average voltage within the UK still remains at approximately 242V.
The IEE recommended in 1996 that all electrical equipment should be tested at 230V –14% to +10% to take into account the voltage drops across a site. Equipment manufacturers have had more than enough time to ensure their products comply with the new limits. Realising that a 230V rated lamp operated at 240V will consume 9% more energy than required and only achieves 55% of its working life, it is worth considering a single installation of a voltage reduction unit on your incoming supply that will reduce your overall consumption. A fixed ratio tapped down transformer (EST) sometimes known as voltage optimiser (graph 1) produces a fixed reduction to an incoming supply. However, the output will always follow the input variations.
Alternatively, an energy saving regulator (ESS) controls and regulates each phase independently to a site adjustable output level (graph 2). As long as the input variations are within the control range the ESS will adapt its outputs to retain their preset levels.
The benefits of the ESS are obvious, with independent phase control and regulation the phase voltages can be balanced, increasing motor efficiency. Linear adjustment of the output voltages allows the user to set the levels (graph 3) to the site optimum for maximum savings. PowerSave will reduce energy costs, giving less than 24 months ROI, regulate your supply voltages, increase equipment life and reduce your carbon emissions. One kWh of electrical energy saved is equivalent to 0.43kg CO2. More articles from Claude Lyons Limited: | 
