TY - JOUR A1 - Becker, Vincent A1 - Schwamm, Thilo A1 - Urschel, Sven T1 - Fault Investigation of Circulation Pumps to Detect Impeller Clogging N2 - Pumps have a wide range of applicat ions. Methods for fault detection of motors are increasingly being used for pumps. In the context of this paper, a test bench is built to investigate circulation pumps for faults. As a use case, the fault of impeller clogging was first measured and then examined with the help of motor current signature analysis. It can be seen that there are four frequencies at which there is an increase in amplitude in case of a fault. The sidebands around the supply frequency are in particular f ocus. The clogging of three and four of a total of seven channels leads to the highest amplitudes at the fault frequencies. The efficiency is reduced by 9 to 15% in case of faulty opera tion. These results indicate that the implementation of fault detection algorithms on the pump electronics represents added value for the pump operator. Furthermore, the results can be transferred to other applications. KW - Impeller faults KW - Impeller clogging KW - Permanent magnet motor KW - Fourier transformation KW - Condition monitoring KW - Circulation pump KW - Pump test bench KW - Motor current signature analysis Y1 - 2020 U6 - https://doi.org/10.3390/app10217550 VL - 10 SP - 1 EP - 13 ER -