Метод комбінованої відсічки по струму і напрузі

Abstract

Distribution electric networks are an important link in the system of production and consumption of electric energy. Correctly configured relay protection and anti-emergency automation, including the selection of the operating parameters of the relay equipment, play an important role in ensuring the reliable operation of electrical networks. Meanwhile, every year about 20% of all incorrect actions of relay protection caused by accidents are due to incorrect selection of settings, while most of the cases fall on the maximum current protection of lines and transformers of distribution networks