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Browsing by Subject "asynchronous motor"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Porównanie rozruchu przenośnika taśmowego z wykorzystaniem silników pierścieniowych oraz sprzęgieł hydrodynamicznych
    (Wydawnictwa AGH, 2011) Kaszuba, Marek
    Basic start-up system used for heavy-duty belt conveyors in open-cast mining comprises a slip-ring motor and start-up resistors. Conveyor start-up is effected according to the motor mechanical characteristics, modified by successive switching of so-called start-up resistors or so-called fluid starters. The former solution is more common in surface belt conveyor drives. Unfortunately, it involves rapid changes of the torque generated by the motor and can lead to undesirable high tensions in the belt. This paper attempts to answer the question whether an addition use of constant-fill or control-fill fluid couplings in the drives could lead to reduction of tensions in the belt during the start-up.