Application of Multipurpose Intelligent Pulse Signal Generator in Cable PD Detection Technology Training

A multipurpose intelligent pulse signal generator that can simulate and generate various PD signal patterns and common interference noise has been developed to improve the partial discharge (PD) detection and localization skills of the professional team of operation and maintenance of power cable lines. It can simulate and generate various types of PD and noise signals similar to the measured signal spectrum in the test site and laboratory, including PD signal level, repetition rate, time interval, waveform, polarity, and PRPD pattern. It can not only provide some kinds of typical reference signals for verification of the signal identification functions and the calibration of PD detection devices, but also can be used with a simulated cable line model to form a training platform for developing PD detection and PD localization technology, which can also be applied to some technique competition of inspection and maintenance for cable line as well. Using this training and evaluation platform, it can simulate various signal patterns like the on-site signals of PD combined with noise under the safety environment without high voltage, such as background noise covering PD or multiple PD signals at the same time, to meet the training needs of testers to cope with various complex PD test problems on site, and it is also suitable for the learning and training of PD localization or cable fault localization based on traveling wave detection technology.