Power line communication channel for smart grid

This paper discusses the use of distribution transformers as a power line communication channel and seeks the possible usage in smart - grid applications. Traditionally, PLC is achieved over the transmission line where all parameters are known for line protection. Generally, transformers are bypassed during this operation because they behave as a low pass filter and are not suitable to transmit high frequency data. In this work, data transmission is achieved using distribution transformers up to several kHz ranges. 400kVA, Dy 11, 11/0.416kV distribution transformer is used for real time tests. Then the efficiency of the suggested methodology is given according to BER criterion.