Abstract
Our daily life is so far fully dependent on electricity. However, now we encounter the serious problems of global warming and depletion of fossil fuels. At present, the headquarters of power companies monitor the power consumption of the entire power grid. On the other hand, each power station monitors the power consumption in the assigned transmission area. In near future, the purchase of electricity such as solar power and wind power will greatly increase. Therefore, we need to develop and produce a lot of clamp current meters to measure the currents flowing in the transmission line for the purpose of efficient management of electric power. In this study, we developed new parasitic clamp meter with free space optical data transmission function for 6.6 kV high-voltage power line.
