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Harmonic distortion is one of power quality problems in power system which it could affect equipment malfunction and many other problems. Therefore harmonic distortion load identification becomes important concern in the power system. In this paper, proposes a Radial Basis Function (RBF) Neural Network to identification of harmonic load. A low cost microcontroller gathers harmonic load data with Fast...
The IEC standard or the International Electrotechnical Commission is a mathematical standard in modeling inverse curve characteristic of overcurrent relay or OCR. Using the IEC standard allows for inaccurate coordination of the relay such as the intersection of the inverse curve, because this standard does not always correspond to various problems in the industry. Accordingly, in this research paper...
The characteristic curve of over current relay (OCR) has a very important role in the electrical protection devices. Standard characteristic curve such as Normal Inverse (NI), Extremely Inverse (EI), Very Inverse (VI) and Longtime Inverse (LTI) are often changed at the time of implementation, carried out for the purposes of security protection system due to other devices in the electrical network...
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