Detection of burnout of tubular electric heaters, included in the three-phase network with the star scheme with the neutral on change of current of neutral with the help of current relay
Journal Title: Вісник Національного технічного університету "ХПІ". Серія: Проблеми удосконалювання електричних машин і апаратів. Теорія і практика - Year 2016, Vol 32, Issue 1204
Abstract
Was offered a determination of the failure connected with wires’ burnout or burnout of spirals of tubular electric heaters with identical power included in a three-phase network according to the star scheme with a neutral, by the way of control of current in the neutral wire with the help of the current relay. Researches of influence of deviations of supply voltage and its asymmetry, deviations of electrical parameters of electric heaters on neutral wire current in case of the normal functioning heaters and in case of the failures connected with wires’ burnout or burnout of their spirals were conducted. By results of a research were developed recommendations about setup of settings of the current relay.
Authors and Affiliations
E. I. Baida, O. O. Chepelyuk
Keywords
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