Power line carrier communication
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Power Line Carrier Communication (PLCC) is mainly used for telecommunication, tele-protection and tele-monitoring between electrical substations through power lines at high voltages, such as 110kV, 220kV, 400kV.
In a PLCC system the communication is established through the power line. The audio frequency is carried by a carrier frequency and the range of carrier frequency is from 50kHz to 500kHz. The modulation generally used in these system is amplitude modulation.
