Power Quality Recent blackouts in different large cities or large portions of countries have attracted the attention of companies management to the necessity to ensure the continuity of electrical supply and the quality of power delivered. Electrical engineers are now being asked to protect sensitive equipment against the increasing dangers of longer term power failures but also against the problems arising from brownouts and blackouts, surges and sags, spikes, noise and lightning, in other words to permanently supply quality power. Amongst the different technologies available today, the dynamic UPS systems demonstrated their superiority in terms of electrical performances, robustness and longevity, power modules capacity and compact size. |