ECOsine Active Increased reliability in building technology
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1 Application example ECOsine Active Increased reliability in building technology
2 The show will go on thanks to ECOsine Active For a unique, internationally-esteemed concert hall like the Lucerne KKL (Culture and Conference Centre), it is essential to have electrical and electronic systems that function with absolute reliability at all times. Above-average failure rates and signs of wear In the Lucerne KKL, a large number of single-phase and three-phase non-linear loads are used. These include lighting equipment, for example dimmers for spotlights, stage machinery with numerous motor drives, sound equipment, HVAC systems and the entire IT infrastructure with the switched power supplies that are typically used. These loads draw mostly non-sinusoidal current from the mains current with a large harmonic component. The side-effects typically associated with this have led to above-average failure rates and signs of wear in the lighting, electronic ballasts and power units, as well as a high thermal load on the infrastructure, especially the neutral conductors. Because mains harmonics lie in the audible frequency range, there was also repeatedly interference in the audio range. Requirement for a sustainable remedy An independent measurement institute was commissioned by the responsible party to perform a comprehensive analysis of the mains quality according to the D-A-CH-CZ (Technical rules for assessing mains feedback). The goal of this investigation was to identify causes and approaches to solving these problems. The following requirements were defined: Reducing the interference with the sound system Eliminating premature equipment failures Reducing the thermal load on the electrical installations, especially the neutral conductors ECOsine Active masters all of the challenges The measurement institute came to the conclusion that the best way to deal with the problems would be 12 decentrally installed active filters. They opted for FN3430 series ECOsine Active filters from Schaffner, modern active filters with four-wire technology and compensation currents of 60 and 120A. All of the available filter functions were required: Harmonics compensation Reactive-power compensation Load balancing All of these tasks can be accomplished by one and the same device. The most modern and fastest filters currently on the market provide optimal results even with phase-controlled dimmers. What is more, the 60A active filters from Schaffner are impressive for their superior EMC and minimal audible noise generation, important features in building technology and especially in the sensitive environment of a concert hall.
3 Compensation of dimmers (phase angle control) Mains voltage UL1 Load current L1 Mains current L1 Current waveforms on mains and load side from the connection point of the active filter. Compensation and balancing of the lighting system Non-linear load current waveforms without filtering measures Lighting system compensated and balanced by means of active filter Improvement of the mains quality of an unbalanced mixed load Voltage (above) and current waveforms without filtering measures Voltage (above) and current waveforms with ECOsine Active
4 Compensation of harmonic currents on the neutral conductor Without filtering measures. Dominant frequency 150Hz with peak values over 160A The neutral conductor current is practically eliminated through the used of the active filter. The approval measurements after installation of the active filters show that the problems of harmonic loading, reactive power consumption and unbalances in the mains have been corrected sustainably. Therefore measurably fewer equipment failures and malfunctions can be expected. Thanks to the specific use of ECOsine Active, discerning concert audiences are guaranteed entertainment of the highest standard.
5 Headquarters Schaffner EMV AG 4542 Luterbach Switzerland T F sales@schaffner.com China Schaffner EMC Ltd. Shanghai T cschina@schaffner.com Finland Schaffner Oy T finlandsales@schaffner.com France Schaffner EMC S.A.S. T francesales@schaffner.com Germany Vertrieb Karlsruhe T germanysales@schaffner.com T buerensales@schaffner.com Spain Schaffner EMC España T spainsales@schaffner.com Sweden Schaffner EMC AB T swedensales@schaffner.com Switzerland Schaffner EMV AG T sales@schaffner.ch Taiwan Schaffner EMV Ltd. T taiwansales@schaffner.com Thailand Schaffner EMC Co. Ltd. T thailandsales@schaffner.com To find your local partner within Schaffner s global network, please go to Schaffner EMC. Specifications are subject to change without notice. The latest version of the data sheets can be obtained from the website. All trademarks recognized. Schaffner is an ISO-registered company. Its products are designed and manufactured under the strict quality and environmental requirements of the ISO 9001 and ISO standards. This document has been carefully checked. However, Schaffner does not assume any liability for errors or inaccuracies. Nuertingen Branch T nuertingensales@schaffner.com UK Schaffner Ltd. T uksales@schaffner.com Italy Schaffner EMC S.r.l. T italysales@schaffner.com Japan Schaffner EMC K.K. T japansales@schaffner.com USA Schaffner EMC Inc. T Toll free usasales@schaffner.com Singapore Schaffner EMC Pte Ltd. T singaporesales@schaffner.com
Product selection chart
Schaffner EMC Product selection chart 2009 DC EMC & output filters 1-phase China Schaffner EMC Ltd. Shanghai T +86 21 6813 9855 cschina@schaffner.com Spain Schaffner EMC España T +34 618 176 133 spainsales@schaffner.com
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