The image study of partial discharge location by acoustic measurement

In this paper, we introduced a new type of partial discharge on-line monitoring by ultrasonic visualization system, which is based on ultrasonic diffusing technology. The system uses ultrasonic positioning and image processing method to achieve the partial discharge ultrasonic position visualization. System uses the array type of ultrasonic sensor and a corresponding signal processing device of ultrasonic signal, processes the synchronization acquisition signals of 32 calculation ultrasonic sensor, gets the partial discharge power plane coordinates, establish a mapping relationship between image coordinate data of partial discharge and the actual equipment through image processing technique and finally achieves the visualization of partial discharge intensity and location. The system can intuitively show the discharge location in the image and its status in the development and changes, timely find power equipment's failure and has extensive application value.