TY - JOUR A1 - Arndt, Bernhard A1 - Popov, Artem A1 - Sayenko, Yuriy T1 - Investigation of voltage transformers operating modes in networks with insulated neutral terminal at non-symmetric modes JF - FHWS science journal N2 - Ferroresonance and processes at one-phase grounding inside networks with insulated neutral terminal are investigated. It is shown that the mode with unidirectional arc, at which direct current passed in high voltage windings is the most difficult operating mode for the transformer. The influence of the secondary voltage transformer load upon the stability of ferroresonance oscillations has been also investigated. KW - Ferroresonance KW - Magnetization curve KW - One-phase arc grounding KW - voltage transormer KW - zero-sequence capacity Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:863-opus-964 VL - 2 (2014) IS - 1 SP - 8 EP - 15 ER -