pfc

For greater energy efficiency, Hong Kong's government administration relies on dynamic power factor correction (PFC) from EPCOS. The typical electrical loads in office buildings are elevators, electronic office equipment and lighting. Because of the nonlinear character of these loads they create a significant amount of reactive power, which exerts extreme stress on the power supply. In subtropical regions such as Hong Kong this situation is amplified by air-conditioning systems needed to cool large office complexes.

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High-Efficiency Devices Offer Operating Junction Temperature of +175 °C in 2- and 3-Pin TO-220 FULLPAK Packages
MALVERN, PENNSYLVANIA. April 25, 2008 Vishay Intertechnology, Inc. (NYSE: VSH) today launched four new 600-V FRED Pt Hyperfast rectifiers that reduce switching losses in high-efficiency PFC and SMPS applications with their extremely fast and soft reverse recovery times, together with low forward voltage drop.

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At this year's Hannover Messe from April 21 to 25 in Hannover, Germany, EPCOS is placing an emphasis on components for improved energy efficiency at its Stand 12D29 in Hall 12. Among the highlights are solutions for power factor correction (PFC). Our Power Quality Solutions help our customers to reduce energy costs and protect the environment at the same time,explains Natarajan Balakrishnan, Executive Vice President and General Manager Power Capacitors. In addition to PFC components, EPCOS is presenting its broad spectrum of EMC filters, ESD and EMI components, and capacitors for DC-link circuits.

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The range of capacitor contactors of the B44066S*J230/N230 series has been extended by a 100-kvar version for PFC equipment with and without reactors. This means that a total of seven power stages are now available: 12.5, 20, 25, 33, 50, 75 and 100 kvar.

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