2 articles for “Special Protection Schemes”

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Research ArticleOpen accessPhrase in the titleDesign of New Load Shedding Special Protection Schemes for a Double Area Power SystemH. Seyedi, M. Sanaye-PasandIn this paper several Under Frequency Load Shedding (UFLS) schemes are designed as special protection schemes to preserve the integrity of islands, formed following the outage of tie lines connecting two areas in a double area power system. For the purpose of analysis, the Iranian interconnected grid is simulated in a suitable power system analysis software. The grid is connected … …American Journal of Applied Sciences, Vol. 6, Issue 2 · 28 Feb 2009 · 7,572 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEvaluation of the Effect of Various Biopesticides on the useful Arachno Entomofauna of the Apple Orchard in the Southeast of KazakhstanI. I. Temreshev, B. K. Kopzhasarov, Z. B. Beknazarova et al.Currently, Kazakhstan is actively researching the greening of the protection of apple orchards from lepidopteran pests. In this regard, biological preparations of various origins were tested. The aim was to study their impact on useful non-target arachno entomofauna (entomophagous insects and pollinators). During the research, both classical methods used in entomology and plant protection, and original modifications were used. In … …OnLine Journal of Biological Sciences, Vol. 23, Issue 1 · 27 Dec 2022 · 5,841 accessesView PDF Cite