| Title |
Analysis of Volatage and Current Waveform Distortion Characteristics at Office Buildings |
| Authors |
Jae-Geun Yoo ; Sang-Ick Lee ; Jeong-Chay Jeon ; Jong-Wook Jeong ; Young-Bae Lim |
| Keywords |
Office building ; Non-linear ; Waveform distortion ; Harmonics ; Crest facto |
| Abstract |
Nonlinear electronic loads used at office buildings distort the voltage and current waveform that cause the overheating of transformer losses, ELB(Electrical Leakage Breaker) tripping, and so on. This paper analyzed waveform distortion characteristics at several office buildings by comparing with magnitude of voltage and current harmonics, crest factor of voltage and current, phase voltage and current unbalance. As a consequence, severe current waveform distortion in phase and neutral line by harmonics and high current unbalance rates by unbalanced using of single loads among the three phases are investigated. The results of the study can be used in making decisions regarding reasonable and economical operating of loads at office buildings. |