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Information × Registration Number 0216U006745, 0113U005232 , R & D reports Title Preventing overvoltage in abnormal conditions main networks to provide stable and reliable functioning the ECO Ukraine. popup.stage_title Head Kuznetsov Vladimir Grigorovich, Registration Date 12-05-2016 Organization Institute of electrodinamics National academy of sciences of Ukraine popup.description2 Object of research - abnormal modes the of the main lines of main electricity high voltage networks. Important scientific and technical problem of identifying the necessary and sufficient conditions for the occurrence of overvoltage and prevent abnormal modes in the main electric networks with voltage 330-750 kV solved in. Studies have revealed that abnormal non-sinusoidal modes of transmission lines characterized by overvoltage on the paired harmonic components, the source of which is the auto-transformer. In order to avoid overvoltage during the dead time of current of single-phase auto-reclose proposed to move to the end substations in un-full-reactor mode for groups of similar phase shunt reactors. It is proved that the most effective measure for reducing the overvoltage at the second harmonic is controlled by commutation the switch with a choice of switching range. Research results implemented in DP NEC "Ukrenergo" substation "Kyivskaya" 750 kV and 750 kV lines. Product Description popup.authors Іваночок Наталія Дмитрівна Баланюк Наталія Борисівна Горбовець Вікторія Анатоліївна Кошман Всеволод Іванович Кузнецов Володимир Григорович Кучанський Владислав Володимирович Ремішевський Володимир Григорович Сабарно Людмила Ростиславівна Севастюк Ігор Михайлович Тугай Ірина Юріївна Тугай Юрій Іванович Черепанова Валентина Михайлівна Шполянський Олег Григорович popup.nrat_date 2020-04-02 Close