Calculation and analysis of inductive coupling effects for HV transmission lines on aerial pipelines

Because of the continuous growth of electric energy consumption and the trend with electric lines of high voltages energy transport and metal pipelines which compose the transport of the fluids and liquid or gas hydrocarbons in the same corridor, the parallelism and the proximity of the power lines and the metallic pipelines become increasingly common. Consequently, it was an increasing concern about the possible dangers resulting from the influence of the power lines on the metallic pipelines. Algeria is a country where the problem is increasing due to the existence of a large transport of natural gas and oil. The induced voltages generated in the pipeline should be quantified in order to avoid security problems for the agents working on the pipeline and pipeline equipment. This paper aims at studying inductive coupling between overhead transmission 275 KV lines and an aerial parallel pipeline in steady state conditions and the factors affecting this coupling, modelling and analysis of the coupling is discussed using the mutual impedances of Carson's equation. Streszczenie.W artykule analizowane jest sprzezenie indukcyjne miedzy napowietrznymi liniami przesylowymi wysokiego napiecia a metalowymi rurociągami. W Problem ten jest szczegolnie wazny w Algerii ze wzgledu na liczne rurociągi do transportu gazu lub ropy. Analizowano wplyw linii 275 KV przy wykorzystaniu rownan Carsona opisujących indukcyjnośc wzajemną. Analiza i obliczenia sprzezenia indukcyjnego miedzy liniami napowietrznymi wysokiego napiecia a rurociągami