New Method of PD measuring on MV XLPE Cable by Using Prototype Patch Antenna

We studied the partial discharge detecting by sensing electromagnetic wave emitted from the partial discharge source in the MV XLPE cable with the new type of patch antenna sensor. In this study, we design new kind of patch antenna and make many experiments compare with the existing HFCT sensor on MV XLPE cable in the laboratory. According to our experimental results our new sensor can detect pure PD and wider bandwidth 20㎒ to 70㎒ than HFCT and can easily localized manually on the cable.