Abstract
Partial discharge (PD) is an important indicator of insulation condition in a power transformer. In this paper, an online monitoring system for detecting and locating the PDs using Wireless Sensor Network (WSN) was proposed and realized. The system could detect the PDs and locate them with good accuracy. This system had the advantages of easy deployment and low cost. The chip CC2430 was used as a control unit and also used for RF communication in the sensing node. SimpliciTI protocol was adopted for WSN to get good accuracy for time synchronization. Experiments were conducted in a simulated environment and result showed the system was able to measure the location coordinate within a certain error range. The causes of the error and methods of improvement were discussed in this paper.
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