Overvoltage in medium voltage networks
DOI:
https://doi.org/10.25206/1813-8225-2019-163-34-37Keywords:
atmospheric overvoltage, internal overvoltage, current cut, frequency overvoltageAbstract
The causes of overvoltages in medium voltage networks can be not only atmospheric discharges and switching processes,
but also certain operational states. The purpose of the study is to analyze overvoltages in medium voltage networks with atmospheric discharges into or near electrical systems switching in the system often leading to switching overvoltages. The application of the proposed measures will reduce the frequency of internal overvoltages, reduce the likelihood of isolation overlapping and correctly select its protection.
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