Bow-tie Antenna with Low-noise Amplifier for Partial Discharge Detection in Oil Insulation

Partial Discharge (PD) is one indicator of high failure isolation of equipment voltage. Partial discharge measurements were carried out To prevent damage to equipment voltage high. An antenna is one _tool measure used _To detect the partial discharge signal. Because many factors influence it, the antenna is still less sensitive inside PD arrest. The use of an amplifier is expected can build an internal antenna to catch partial discharge signal becomes more ok. In testing, These two antennas that are the same (identical) as sensors are installed, and carried out the installation of a Low Noise Amplifier (LNA) is on one of the antennas as a comparison To show the influence use of LNA against PD capture by the antenna. Test results show that PDIV occurs at 11.02 kV on both antennas. On testing, This is the formed phase pattern used To show the number of PDs captured by both antennas, the antenna using the LNA shows results in more PD arrests many. The use of LNA in testing has proven to increase the amount of arrest PD signal from the sensor antenna used.