Accuracy of Rotational Speed and Torque Sensors for Determining the Mechanical Power of Rotating Electrical MachinesSrpčič, Gregor (Avtor) Brinovar, Iztok (Avtor) Štumberger, Bojan (Avtor) Seme, Sebastijan (Avtor) Hadžiselimović, Miralem (Avtor) efficiencymeasuring systemelectric machinestorque and rotational sensorsaccuracyThis paper deals with determining the accuracy of measuring systems for determining the characteristics of rotating electrical machines. Efficiency classes and experimental methods for determining efficiency, are given in a standard, which has to be strictly respected. For determining the efficiency of an electrical machine, it is necessary to have a modern and accurate measurement system with sensors of high accuracy classes, which enables the user to carry out precise measurements and consequently, to determine all the characteristics of the electrical machine. This paper will be focused on torque and speed measurements.Univerza v Mariboru, Univerzitetna založba20192023-12-04 14:49:25Znanstveno delo86472UDK: 621.313OceCobissID: 96247297COBISS_ID: 1024342364sl