ศึกษาและวิเคราะห์แหล่งกำเนิดฮาร์มอนิกของอาคารในมหาวิทยาลัยเกษตรศาสตร์ (วิทยาเขตบางเขน)

Abstract

Nowadays, nonlinear single phase loads are utilized and tend to be increased by without harmonic quantity supervision. There are harmonic sources in power system. For this reason, the harmonic sources education in power system, by measure of harmonic content in a different type of buildings at Kasetsart University, Bang Khen Campus. The case study shows that equipments sterilizes room, blood test room and operating room, recovery room have total current harmonic distortion (), not exceed the limitation of even balanced and unbalanced phase, because most the equipment are linear type. For the lecture rooms of 100, 200, 300 seats, teacher offices and general office, such as pet’s medical examination, administrative section, it was found unbalanced which some phase have the value  exceeded the limitation. The adjustment of the load to balance is applied. For the others, even though it is balanced, but still has theexceed, especially computer center, the installation of filter is necessary.