This paper is a common approach of manufacturers of insulators, electrical equipment, transmission system and test labs to verify the expected behaviour in laboratory and outdoor tests. For the electrical design of composite insulators, different material properties and shed profiles for AC and DC conditions have to be taken into account respectively, considering the recommendations […]
The booming of renewable power stations (solar and wind mill mainly), the increase use of Interconnectors and submarine cables, the construction of urban substations in big cities with intense population and the need to avoid the use the overhead lines (right of way and so on), are the main factors leading to the increasing amount […]
Storm damage can wreak havoc on the electrical distribution system and instantaneously create a major impact on those who continuously depend on unfettered access to electrical energy. “Keeping the lights on” is a bedrock principle of utility operations, but is increasingly being challenged by more frequent and turbulent natural disasters. The quest for greater utility […]
L’articolo ha lo scopo di illustrare in forma sintetica il lavoro sin qui svolto da Terna in collaborazione con CESI per la valutazione del ciclo di vita (LCA) di componenti o sistemi della Rete Elettrica di Trasmissione. In particolare vengono sviluppate prime indicazioni sull’impatto Global Warming (GW).
L’articolo ha lo scopo di illustrare in forma sintetica il lavoro sin qui svolto da Terna in collaborazione con CESI per la valutazione del ciclo di vita (LCA) i una linea di trasmissione HVAC in cavo in doppia terna a 380 kV.
A ferroresonance analysis related to HV Inductive Voltage Transformers (IVT) and Power Voltage Transformers or Station Service Transformers (PVT/SST) was addressed to develop models based on EMT formulation, enabling detailed ferroresonance risk analyses in specific HV station conditions and helping in the equipment technical specifications (including anti-ferroresonance remedial provisions). The research relied on a comparison […]