The study of Archimedean spiral antenna for partial discharge measurement

Partial discharge (PD) is an important indicator for electrical equipment´s insulation property in power industry. Through the measurement of partial discharge we can have a good understanding of the equipment´s performance. Ultra High Frequency (UHF) detection techniques are being recently a more and more important method to detect partial discharges. In this paper, a wide bandwidth Archimedean spiral antenna was designed. Its main parameters were analyzed by computer simulation software. A partial discharge test platform was built and three typical partial discharge models were designed. We used the designed Archimedean spiral antenna to detect the three models. The experiment results show that the designed Archimedean spiral antenna has good performance to measure electrical equipment partial discharge signals.