ЗАХОДИ ПОДАВЛЕННЯ АПЕРІОДИЧНОЇ СКЛАДОВОЇ СТРУМУ ПРИ КОМУТАЦІЯХ ЛІНІЙ ЕЛЕКТРОПЕРЕДАЧІ НАДВИСОКОЇ НАПРУГИ ЕЛЕГАЗОВИМИ ВИМИКАЧАМИ (MEASURES FOR SUPRESION APERIODIC CURRENT COMPONENT AT SWITCHING EXTRA-HIGH VOLTAGE LINES 750 KV BY SF6 BREAKERS)
Анотація
In main power electrical networks of Ukraine, the replacement air circuit breakers on sulfur hexafluoride (SF6) circuit breakers were implemented. This modernization is due to the fact that the modern electrotechnical industry does not manufacture air switches and, in case of accident, repairs these breakers and renewals electrical supply will be impossible. In comparison with air circuit breaker, the SF6 has certain advantages, the main ones being the speed and high switching power, as well as the possibility of installing an additional control switching device and pre-insertion resistors. The switching point of an SF6 circuit breaker is a probabilistic parameter and it is impossible to perform switches at the required moment without the use of controlled switching. Such a disadvantage during the operation led to emergency situations, including the appearance of aperiodic (AP) current component at electromagnetic transients [1-3]
Посилання
Tugay Y.I., Mel'nychuk V.A. Transients in power distribution devices with SF6 breakers // Pratsi Instytutu elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy – 2014. – №39. – P. 5–9.
Beanland M, Thomas S., Rostron P. Pre-insertion resistors in high voltage capacitor bank switching // Proceedings of international conference on western protective relay– 2004. – P. 1–12.
Controlled Switching // Buyers & Application Guide, Edition 3.1. ABB. – 2010. – P. 54.
Cписок використаної літератури
Тугай Ю.І., Мельничук В.А. Перехідні процеси в розподільчих пристроях електростанцій з елегазовими вимикачами // Праці Інституту електродинаміки Національної академії наук України – 2014. – № 39. – С. 5–9.
Beanland M, Thomas S., Rostron P. Pre-insertion resistors in high voltage capacitor bank switching // Proceedings of international conference on western protective relay– 2004. – P. 1–12.
Controlled Switching // Buyers & Application Guide, Edition 3.1. ABB. – 2010. – P. 54.
