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The Power Quality of the distribution networks and its impact on the Telecommunication Next Generation Access Network

pubblicazioni - Memoria

The Power Quality of the distribution networks and its impact on the Telecommunication Next Generation Access Network

L’articolo si occupa della Qualità della Tensione della rete elettrica di distribuzione e del suo impatto sulle nuovi reti di telecomunicazione. Telecom Italia ha valutato sperimentalmente l’impatto dei buchi di tensione e delle micro interruzioni sui principali dispositivi di Information and Communications Technology (ICT). Sulla base di questi risultati RSE ha condotto indagini statistiche sui buchi di tensione che potrebbero in teoria causare il riavvio dei dispositivi di telecomunicazione. Le analisi si basano sui dati forniti dal sistema di monitoraggio della rete MT QuEEN nell’ipotesi che i buchi di tensione MT si trasferiscano totalmente alla rete BT cui sono connessi i Cabinet per le telecomunicazioni.

The paper deals with the Power Quality of the electrical distribution network and its impact on the new telecommunication networks. In particular, in the frame of the deployment of the Next Generation Access Network (NGAN) in the Fiber To The Cabinet (FTTCab) architecture, the impact of severe voltage dips and micro interruptions on the most important Information and Communications Technology (ICT) devices has been evaluated experimentally by Telecom Italia, defining in particular a sort of customized voltage dips immunity area for its telecommunications network equipment (TLC). On the base of these experimental results RSE has performed statistical analyses on voltage dips occurring outside this area which could be responsible in theory for the telecommunication devices reboot. The analyses are based on the data provided by the MV distribution network monitoring system QuEEN in the assumption that MV dips could be totally transferred to the LV network where the telecommunication cabinets are connected. A short analysis of voltage dips propagation from the medium voltage MV to the low voltage LV networks has been performed, on a few measurements sites at disposal in order to confirm this assumption.

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