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Исследование микропроцессорной токовой направленной защиты линий распределительных сетей

Исследование микропроцессорной токовой направленной защиты линий распределительных сетей

Abstract

Рассматривается микропроцессорная токовая направленная защита линий с элементами адаптивности, а также приведены результаты исследования ее технического совершенства. Исследование технического совершенства предложенной защиты проводилось с использованием компьютерной программы, в основе которой лежит математическая модель распределительной сети 10-35 кВ с двумя источниками питания. Поведение защиты было исследовано не только при металлических коротких замыканиях, но и при коротких замыканиях через переходное сопротивление.Исследования показали, что положенные в основу выполнения микропроцессорной токовой направленной зашиты решения обеспечивают достижение более высоких показателей ее технического совершенства по сравнению с существующими защитами аналогичного исполнения, а также селективное действие и правильное функционирование во всех режимах работы защищаемой линии.

The paper considers a microprocessor current directed protection of lines with adaptive elements and also presents investigations results of its technical modernization. An investigation of the technical modernization pertaining to the proposed protection has been executed while using computer program which is based on mathematical model of 10-35 kV distribution network with two power sources. The protection behaviour has been investigated not only at metallic short circuits but also at short circuits through transition resistance.The investigations have revealed that solutions laid in the basis of the microprocessor current directed protection ensure higher indices of its technical modernization in comparison with the existing analog protection and also a selective action and correct operation in all operating modes of the protected line.

Keywords

ТССЛЕДОВАНИЕ,МИКРОПРОЦЕССОРНАЯ ТОКОВАЯ НАПРАВЛЕННАЯ ЗАЩИТА,ЛИНИЯ РАСПРЕДЕЛИТЕЛЬНОЙ СЕТИ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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