INPUT SIGNALS OF PROTECTIONS OF THE ELECTRIC MOTORS OF AN ALTERNATING CURRENT IN THE TRANSITIVE AND ESTABLISHED MODES
2015
Nikolay Kurguzov1, Lyudmila Kurguzova2, Marina Kurguzova3, Altynbek Rakishev4, Bekzhan Smagulov4
The existing Rules of the device of electrical units (RD) recommend specify winds of the stator of the electric motor (EM) of alternating current of voltage for protection above than 1 kV from multiphase short circuits (SC) installation only of current protection performed as current cutting or longitudinal differential current protection. Use of relay protection (RP) realizing other principles and functioning algorithms, and so as the installation of back-up protection on EM, including high-power capacity, active Norms and Standards is not provided at present (in spite of ample opportunities of digital equipment in practical realization of any algorithm of functioning of RP).
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