TELECOMMUNICATION SYSTEMS ON POWER DISTRIBUTION NETWORKS - HIGH-FREQUENCY PERFORMANCES OF CARRIER CHANNELS

In the framework of a project aimed al the design and installation of a new extensive Distribution Automation System in the ENEL S.p.A. (Ita lian National Electricity Company) distribution network, this paper pr esents the investigations carried out to check the feasibility of a li ne carrier system on the primary (medium voltage 10-30 kV) network. In particular, this paper reports the experimental investigations conduc ted in the laboratory on various network components, to assess their b ehavior in the 20-100 kHz frequency range, and some signal transmissio n tests on real networks. Analytical procedures to predict the high fr equency signal propagation in the network, set up for this purpose, ar e also described. The results of their applications to various network configurations are used as a guide for the optimal design of the powe r carrier communication system