AA Sensor

Partial discharge (PD) is one of the faults that occur due to defects in the user's electrical high-voltage insulation system. Users need to measure partial discharge to monitor equipment conditions and avoid faults. This sensor is a professional component for air ultrasonic partial discharge detection, and can be used in conjunction with ultrasonic partial discharge detector to form a complete PD detection system for high-voltage equipment. Internal equipment such as insulators, sleeves, busbars, and terminals generate vibrations during surface discharge, which then propagate through air media. AA (Air Ultrasonic) sensors use this principle to sense partial discharge signals, and it is also an important matching part of partial discharge ultrasonic detector for high-sensitivity capture of air-borne PD vibration signals. When combined with uhf sensor partial discharge devices, it can realize multi-dimensional fusion detection of partial discharge signals, covering both ultrasonic and ultra-high frequency signal acquisition, and greatly improving the comprehensiveness and accuracy of PD fault diagnosis for high-voltage electrical equipment