Question

dan lstrumeapeues Voltage (V): Current (D: Power factor (PF): 600 V (rms) range, accuracy 1-1000 A, 1 % of reading 1 % of reading 2% of reading (a) Calculate the uncertainty in power measurement as a percentage of reading due to the measurement device for measured values of 460V,36 amp, and a power factor of 0.81 (b) In logging data with a high sampling rate, the calculated standard deviations of the readings are 3.00 V,2.00 A, and 0.03 for the power factor, while the mean values are 460 V, 35.00 A, and 0.81 for the power factor. Determine the random and systematic uncertainty of the measurements. (c) what is the total uncertainty in the power measurement at a 95% confidence level?

Answer 1