Enhancing the efficiency of distribution electric networks 6-35 kv.
Journal Title: Наукові праці Донецького Національного Технічного Університету серія: Електротехніка і Енергетика - Year 2017, Vol 1, Issue 1
Abstract
The methods of enhancing the efficiency of distribution electric networks 6-35 kV with different modes of neutral networks. It is noted that in networks with resonant earthed neutral circuits with phase-to-ground not ensured the correct operation of protection based on the control of cur-rents and voltages in the zero sequence, in connection with the search of damaged joining is carried out by alternately disconnecting circuit breakers of outgoing connections, which often leads to a phase-to-phase short circuits and group shutdown of consumers. A method was developed to ensure the proper steps of protection by short-term capacity connec-tion in parallel with the reactor, eliminating the sequential switches turn -off when searching for a damaged connection, the Second way to identify the corrupted accession based on the use of protection, using the parameters of the transition process at the initial moment of short circuit phase to earth. The efficiency of the proposed methods with the results of mathematical modeling.
Authors and Affiliations
V. F. SYVOKOBYLENKO, V. A. LYSENKO
Keywords
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