Abstract-- In this letter, a power quality measurement network for power system is proposed to integrate electric measurement units with the Internet, global positioning system (GPS) a
nd LAMP (Linux, Apache, MySQL, PHP). A synchronized sensor network is formed to monitor the system’s dynamics in a widearea sense. CompactRIO by National Instrument (NI) is used as measurement units to capture voltage at 110 V outlet and process
the signals locally. It has the advantages of ease-of-portability and standard network communication capabilities. A virtual instrument environment is developed to process measurements and GPS signals. To store and display measurement data over the Internet, a LAMP-based database and web server are developed. The major advantages of such architecture are that they are all commercial-grade software with proven system operation stability and are free to use.