Ziekenhuizen, tunnels en luchthaven

  • Speciale overwegingen voor ziekenhuizen

    Voor ziekenhuisventilatie gelden er strenge eisen ten aanzien van veiligheid, naleving en rendement. Danfoss levert frequentieregelaaroplossingen voor brand- en rookveiligheid, warmtedissipatie, harmonischenreductie, en EMC- en seismische conformiteit.
    Faalveilig zonder uitschakelingen (trips)
    In ziekenhuizen kan uitval, om welke reden dan ook, levens in gevaar brengen. Frequentieregelaars die pompen en chillers van voeding voorzien, moeten uitermate betrouwbaar en nagenoeg immuun zijn voor onderbrekingen van de netvoeding. Om deze betrouwbaarheid te realiseren, zijn Danfoss frequentieregelaars ontworpen om spanningsdips en zelfs kortstondige spanningsuitvallen te negeren en altijd het volle vermogen te kunnen leveren.
    Bescherm toepassingen en operators 
    De VLT® HVAC Drive FC 102 biedt de STO-functie (Safe Torque Off) overeenkomstig ISO 13849-1 PL d en SIL 2 conform IEC 61508 / IEC 62061. In toepassingen met een 'high-demand' kwalificatie kan deze functie worden uitgebreid met de VLT® Safe Option MCB 140, een externe module met functies als Safe Stop 1 (SS1), Safely Limited Speed (SLS) en Safe Maximum Speed (SMS), aansturing van externe contactors en veiligheidsdeurbewaking en -ontgrendeling.
    Betrouwbare harmonischenreductie

    Hoewel frequentieregelaars de precisie verhogen, energie besparen en de levensduur van de toepassing verlengen, introduceren ze ook harmonische stromen in het ziekenhuisnetwerk. Als harmonische stromen niet onder controle worden gehouden, kunnen ze de prestaties en betrouwbaarheid van generatoren en andere apparatuur negatief beïnvloeden.

    Om verstoringen te minimaliseren, adviseren we u om meer te lezen over onze kennis van harmonischentoepassingen, softwaretools en oplossingen voor harmonischenreductie.

    Speciale overwegingen voor tunnels

    Beheerders van metro- en autowegtunnels eisen strikte ventilatieprestaties voor een veilige werking en geoptimaliseerde exploitatiekosten. Het VLT HVAC Drive-assortiment, van laag tot hoog vermogen, voldoet aan de eisen voor brand- en rookveiligheid en voldoet tevens aan seismische voorschriften. Al onze regelaars bieden dezelfde specifieke HVAC-functies, voldoen aan de normen en zijn leverbaar met compatibele softstarters en filter- en veldbuscommunicatieopties.

    Speciale overwegingen voor luchthavens

    Met honderdduizenden of zelfs miljoenen passagiers per jaar is ventilatie een topprioriteit voor internationale luchthavens. Om het comfort en de veiligheid van reizigers te verbeteren, en stijgende elektriciteitsprijzen het hoofd te bieden, worden steeds vaker frequentieregelaars ingezet om de werking van luchtbehandelingskasten te regelen en te optimaliseren en het energieverbruik te verlagen.

    VLT HVAC Drives zijn geschikt voor zowel laag- als hoogvermogenoplossingen. Ze zijn standaard uitgerust met specifieke HVAC-functies, compatibele softstarters en filters voor EMC en harmonischenreductie. En dankzij het uitgebreide assortiment veldbuscommunicatieopties is effectieve integratie in het gebouwautomatiseringssysteem mogelijk.

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