Controlling Variables Data By Using The First-Order Model Of Response Surface Methodology

Ahmad Afiq, Hassan (2012) Controlling Variables Data By Using The First-Order Model Of Response Surface Methodology. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Polymers insulators that used in outdoor electric power transmission are exposed to outdoor environmental contaminations include rain, humidity, pressure, and light that will cause the degradation of the insulator surface caused by leakage current that flow on the surface of insulator for a long period with large magnitude. The analysis is focused on the harmonics that occur from the waveforms because the changing of the variables. The signal of Total Harmonic Distortion as dependent variable can be analyzed and minimized by using the first-order model of Response Surface Methodology by controlling three variables which are flow rate, conductivity and voltage supply. The collected data will be computed in Design Expert software. Statistical techniques together with good engineering knowledge usually lead to sound conclusion. Linear model for the THD response was successfully developed and the model was validating by generated sixteen samples that were examined. By applying this methodology, the minimum value of THD was obtained by controlling these three independent variables.The minimum values of each factor are 3ml/s for flow rate of water, 300Uim for conductivity of water and 3kv for voltage supply. The analysis shows that the best value of THD for the first-order model response is 37.8637. Data that have been collected was been analyzed by using the first-order model of Response Surface Methodology. Finally, this result from the analysis ofTHD can be used to improve the outdoor insulation for future installation.

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