Abstract:
A mathematical model of an electric drive of a centrifugal borehole pump is proposed for
evaluating its energy consumption in operating conditions. The model is based on the use of minimum set of
technical parameters of the pump, presented in the public data of the manufacturer. The correctness of the
calculated formulas is confirmed by experimental data provided in the program for equipment search and
selection from Grundfos Product Center. Based on the created model, a comparative analysis of the energy
efficiency of products from various manufacturers was made. It is proved that when choosing a centrifugal
borehole pump of the local water supply system, it is necessary to pay attention to the energy efficiency
indicators of electric drive in order to make a final decision.
