A Sabbagh Alvani - Azerbaijan Regional Electric Company, Tabriz, Iran
R Rashidi - Aran Naghsh Ara Consultant Engineering Co., Tabriz, Iran

After providing power electronic devices, power quality in the industry talk more and more was considered. The defined parameters and new standards for power quality, displaying and monitoring these parameters among the topics are important and significant. The project design and construction of an example of a data acquisition system (Data Logger) explains. First power quality and parameters will be introduced to it. Then the algorithm for finding the harmonic signal analysis is discussed. In this paper, a system designed that as acceptable quality problems can be identified and measured to sensors Hall effect for sample voltages and current systems, Data Acquisition for data transfer to computer and two examples of software by the Lab VIEW and C is designed for signal analysis have been used. this system to detect voltage and current harmonics up to 121th component's flicker on voltage detection, diagnosis and record the voltage drop and determine the abnormal voltage and current wave form as the harmonics as one of the main problems is the power network.

Power Quality, Harmonic, Interharmonics,Fast Fourier, Frequency Spectrum, Flicker, Hall Effect