Koren'kova T. The rational electrical drive of pump stations of urban water supply

The dissertation is devoted to problems of increase of an overall performance of pump sets (PS) of water supply at the expense of application of a rational system of the adjustable electrical drive taking into account peculiarities of in paralleled working aggregates on a general hydraulic network with back pressure. The actual technological control band of speed of the adjustable pomp is determined: the expressions and grouping of characteristics for definition of borders of regulation of productivity PS are obtained at change of rotation speed of the engine of the pomp. The substantion of expediency of application of a system a thyristor voltage regulator - induction motor (TVR-IM) is executed whith allows to carry out serial start of drives and speed regulation of the engine in the justified limits.