INVESTIGATION OF THE OPERATION MODES OF PROTECTION AGAINST SINGLE-PHASE EARTH FAULT IN THE NETWORK WITH ISOLATED NEUTRAL POINT IN PRESENCE OF FERRORESONANCE PROCESSES. (2015). Visnyk of Vinnytsia Politechnical Institute, 4, 61-69. https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/768