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ENEL 380 kV SUBSTATIONS: SHORT-CIRCUIT UPRATING OF RIGID BUSBARS SYSTEMS AND OF FLEXIBLE BUNDLED CONDUCTORS CONNECTIONS BETWEEN COMPONENTS

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Abstract

The pape1· proposes the resftlts of a thcof'etlcal and experimental work aimed at W!r/fying the mechanical stresses during short·circuit conditions on substations Wucturcs and components for currents highef' than 50 M (present design limit for £NEl 's 380 kV aubstatlons). Rigid busbars systems and flexible connections, equipped wllh twin or trip/ e bundle conductor, were analyzed by means of computer models and short· clrc11lt tests. Results allowed to characterize suitable solutiom for 1/ie connections examined.

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