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Analyzing the potential for using active filters to reduce voltage nonsinusoidality in the electric power supply system of a coal open-cut in Vietnam

... ID: 04006. 2019. DOI: 10.1051/e3sconf/201911404006 Coal mining is one of the important economic sectors in Vietnam. Power supply systems of coal mines and open-cuts are complex. They have multiple levels of voltages and different types of loads. New electrical equipment usually works alongside with the equipment that is obsolete and worn-out. Power supply systems of industrial areas of Vietnam where coal is mined are characterized by the low power quality. In Vietnam the indices which characterize ...

Теги: coal , coal mines , electric power supplies to apparatus , filtration , harmonic analysis , power quality , quality control , economic sectors , electric power supply , electrical equipment , interharmonic curr
Evaluation of the Influence of Non-sinusoidal Conditions on Power Transformers

Kovernikova L., Van Cuong N. Evaluation of the Influence of Non-sinusoidal Conditions on Power Transformers // E3S Web of Conferences. Vol.58. ID: 03012. 2018. DOI: 10.1051/e3sconf/20185803012 The electrical equipment operation is cost-effective and reliable when operating parameters of the electrical network correspond to the rated data of the equipment. The real operation conditions, however, differ from those required for electrical equipment,...

Теги: cost effectiveness , power transformers , rectifier substations , electrical equipment , electrical networks , is costs , its efficiencies , non-sinusoidal , operating parameters , operation conditions , railwa


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