Bien choisir son onduleur

Bien choisir son onduleur

Saturday, Oct 03, 2015 Les guides

Les pannes électriques sont très souvent à l’origine des pertes de données informatiques.

Leur origine peut être diverse : Coupures ou Microcoupures Réseau, Surtensions, Baisses de Tension, Variations de fréquence, Distorsions harmoniques…
Eaton propose un large éventail de solutions d’Onduleurs, basées sur trois technologies différentes, selon le niveau de protection approprié.

La technologie Off-Line (ou Passive Stand-By)

est la plus fréquente pour la protection des PC en environnement peu perturbé. En mode normal, l’onduleur alimente l’application avec le secteur, simplement filtré mais sans aucune conversion d’énergie. Son principe de fonctionnement est séquentiel (sur secteur/sur batterie).
En cas de coupure, de baisse ou hausse de tension, l’onduleur puise son énergie dans sa batterie pour fournir une énergie stabilisée. Son utilisation est inadaptée en casde perturbations fréquentes (environnements industriels ou fortement perturbés).
Avantage : très économique.

La technologie Line-Interactive

est utilisée pour protéger les réseaux et les applications informatiques des entreprises.
En mode normal, l’appareil est géré par un microprocesseur qui surveille la qualité du réseau électrique et réagit aux variations. Un booster et un fader, circuits de compensation de tension, sont activés en cas de variation de l’amplitude de la tension.
Avantage : pallie les baisses ou les hausses de tension prolongées sans sollicitation des batteries.

La technologie Double-Conversion (On-Line)

est adaptée à la protection centralisée de serveurs garantissant une qualité constante quelles que soient les perturbations du secteur.
Dans l’onduleur On-Line, la double conversion permanente élimine les perturbations électriques qui peuvent endommager un ordinateur : le courant est entièrement régénéré par transformation d’alternatif en continu, puis à nouveau de continu en alternatif.
Il est indispensable pour la protection des installations vitales à l’entreprise et assure une protection permanente.
L’onduleur On-Line est compatible avec tout type de charge car il ne génère pas de micro-coupure lors du passage sur batterie.
Avantage : technologie la plus performante, application constamment protégée contre tout type de perturbation, régulation permanente de la tension de sortie (amplitude et fréquence), continuité de service grâce au by-pass.

Tags : technologie , onduleur , guide ,

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