Open AccessOVERVOLTAGE DURING ARC SINGLE-PHASE EARTH FAILURES IN 35 KV ELECTRICAL NETWORKS
Author(s) -
M.S. Seheda,
AUTHOR_ID,
O.M. Ravlyk,
Zinovii Bakhor,
Andriy Yatseyko,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
pracì ìnstitutu elektrodinamìki nacìonalʹnoï akademìï nauk ukraïni/pracì ìnstitutu elektrodìnamiki nacìonalʹnoï akademìï nauk ukraïni
Language(s) - English
Resource type - Journals
eISSN - 1727-9895
pISSN - 2786-7064
DOI - 10.15407/publishing2021.60.038
Subject(s) - overvoltage , busbar , arc (geometry) , electrical engineering , electric arc , ground , single phase , voltage , physics , engineering , electrode , mechanical engineering , quantum mechanics
The results of the study of overvoltages during arc single-phase earth faults of intermittent nature in the 35 kV electric network with isolated neutral are presented. Computer simulations of transients in the electrical network have obtained the maximum multiplicities of overvoltages at the point of occurrence of single-phase arc earth faults, which exceed theoretically expected according to known theories of the occurrence and development of overvoltages. The change of the overvoltage level on the 35 kV busbars of the network substations, electrically connected to the place of occurrence of the single-phase earth fault, and the influence of the cable line on the overvoltage multiplicity are shown. Ref. 12, fig. 3, table.