LOW VOLTAGE DISTRIBUTION PANEL WITH POWER QUALITY METER AND OPERATING METHOD THEREFOR

摘要

A low voltage distribution panel and an operation method thereof are provided to remotely transmit/receive a power quality data and a power data generated in a branch circuit of a power consumer by using a power line without a separate communication device. A power quality meter(100) includes a voltage input part(110), a current input part(120), an A/D converting part(130), a data extracting part(140), an abnormality generation determining part(150), and a power line communication part(160). The voltage input part and the current input part receive an analog voltage and a current signal supplied to a circuit breaker. The A/D converting part converts the analog voltage and the current signal into a digital signal. The data extracting part extracts a power data and a power quality data by applying convolution and fourier transform to the digital signal. The abnormality generation determining part generates alarm information when a supply power is abnormal. The power line communication part transmits the power data and the power quality data to a management server(400) on a real time.