옥외 전력선 통신을 위한 저압 변압기 노이즈에 대한 연구

A Study of Low Voltage Transformer Noise in Outdoor Power Line Communication

The noise is major obstacle element in power line communication. However, because power supply networks are not designed for communication, there are various noise sources. Accordingly, a study of characteristic and cause of noise generated in low voltage transformer is important for outdoor power line communication. In this paper, we measure low voltage transformer noise in 1-30MHz using spectrum analyzer. We analyze cause and pattern of noise considering partial discharge.