| Title |
Development of Power Quality Measurement System for Harmonics Diagnosis of Electrical Equipment |
| Authors |
Jae-Geun Yoo ; Sang-Ick Lee ; Jeong-Chay Jeon |
| Abstract |
Because of falling-off in power quality by harmonics, obstacles like lowering of capability, noise, vibration of power facilities and so on are occurred. Also generation of harmonics is inevitable and the point at harmonics is seriously gathering strength because energy saving installation using semiconductor circuit as countermeasures to enhance energy efficiency will be broadly spread and the use of energy conversion equipment like motor speed control contrivance, energy keeping installation and so on will increase, in the future. In order to eliminate harmonics obstacle, precision measurement and analysis on voltage, current, power factor, the each ingredient of harmonic order, the percentage of total harmonic distortion, and so forth are needed. In this paper, we developed low-cost measurement system to measure and analyze power quality connected with harmonics and verified it"s performance by measuring and analyzing power quality in the three-phase and four-wire system. |