The Analysis of the Possibility of Realization of a New Substation 400/110kV as a Substitute for TR Tábor

This thesis deals with the assessment of the location of the new transformer station 400/110 kV in terms of conditions in the 110 kV network, which will be supplied from this substation. The new 400/110 kV transformer station will replace the current transformer station 220/110 kV Tábor, which will be decommissioned in connection with the overall 220 kV system attenuation in the Czech power transmission system. On the basis of the load flow simulation of the 110 kV distribution network and calculations of the short-circuit conditions performed by simulation SW LUG two variants of the location of a new 400/110 kV transformer station were assessed. The 110 kV network calculations were focused on the evaluation of voltage conditions, the 110 kV lines loading in the standard operating scheme and in failure states according to the N-1 criterion, short-circuit conditions and losses. On the basis of the computational analyses, the technical measures necessary to ensure the reliable operation of the 110 kV network in the given area are designed and economically evaluated