Abstract
Partial Discharge Detection and Characteristics of Gas-insulated Substation Free Metal Particles Based on Acoustic Emission
Highlights
With the wide application of gas-insulated substations (GISs), the operation reliability of GIS has aroused widespread concern in the international community
According to 40 years operation experience, the insulation fault is always one of the most important factors affecting the reliability of GIS.(1,2) The insulation fault is caused by defects such as surface free metal particles, high-voltage conductor spikes, insulator surface contamination and internal defects, shell spikes, and floating electrodes
The results of the survey showed that the fault rates caused by different types of insulation defect were different, and that the insulation fault rate caused by the metal particles and foreign body was the highest.(3) Partial discharge (PD), the early manifestation of insulation
Summary
With the wide application of gas-insulated substations (GISs), the operation reliability of GIS has aroused widespread concern in the international community. According to 40 years operation experience, the insulation fault is always one of the most important factors affecting the reliability of GIS.(1,2) The insulation fault is caused by defects such as surface free metal particles, high-voltage conductor spikes, insulator surface contamination and internal defects, shell spikes, and floating electrodes. Research results show that the characteristics of a PD-induced acoustic emission (AE) signal and the size of metal particles have an obvious correlation, which can be used as the basis for determining the degree of insulation structural damage. It is valuable for the in situ detection of high-voltage equipment such as transformers
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
