平板电极PEA测电缆空间电荷－1.pdfVIP

Measurement of Space Charge Distribution in XLPE Cable using PEA system with Flat Electrode Tsuguya Muronaka,Yasuhiro Tanaka and Tatsuo Takada Musashi Institute of Technology,Tokyo,Japan Satoru Maruyama and Hideji Mutou The Furukawa Electric Co., Ltd. Chiba,Japan should be employed. However, in the case of Abstract applying the flat electrode system to the cable-shape sample measurement, the contacting area between The Pulsed Electro-Acoustic (PEA) method has been sample and detecting electrode had been too small to used for the measurement of space charge distribution obtain a clear signal. Therefore, authors aim to in solid dielectric films or cable shape samples. develop the flat electrode PEA system by employing However, the PEA system for cable shape samples had the noise reductive structure. In this report, the a curved surface electrode, which had the same radius improved PEA system for cable and typical curve to the outer radius of the sample cable. measurement results using it will be introduced. Therefore, if we measure