Simulation analysis and modeling of local discharge sensor

Local discharge detection is an important technology used to evaluate the state of electrical equipment. It can realize early fault diagnosis, accident prevention, life extension and operation efficiency improvement of electrical equipment, provide scientific basis for equipment management and maintenance, and ensure the safe and stable operation of power system. The office release detection is realized by using the office release sensor, which is the core component of the office release detection, and plays the role of collecting, transmitting and transforming the office release signal, providing the necessary data basis for the office release detection. In this paper, the common detection technology and the local discharge sensor are introduced, and the failure mechanism of the local discharge sensor is studied by establishing the failure physical model of the local discharge sensor and simulating the stress environment. The 3D model of F-P sensor in transformer oil was established by ANSYS finite element simulation software and verified by simulation. The influence of liquid insulating dielectric on the characteristic parameters of partial discharge detection was analyzed.