Open AccessResearch on High Voltage Online Monitoring System for Dielectric Loss of Capacitive Equipment in Substation
Author(s) -
Minhu Xu,
Yun Guo,
Dewen Zhang,
Ruifen Cao,
Yubo Shen,
Siwei Han
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/769/4/042025
Subject(s) - capacitive sensing , alarm , digital signal processing , key (lock) , harmonic , signal (programming language) , computer science , electrical equipment , protocol (science) , electrical engineering , engineering , computer hardware , electronic engineering , embedded system , operating system , medicine , physics , alternative medicine , pathology , quantum mechanics , programming language
The paper introduces the principle of on-line monitoring of the dielectric loss factor of capacitive equipment and the composition of the monitoring system. It explains the software-based mathematical analysis method and harmonic analysis method, and uses DSP for digital filtering. At the same time, the paper establishes an intelligent auxiliary monitoring terminal in the substation, uses the equipment ADP+ equipment protocol library to dynamically connect to various auxiliary monitoring equipment, uses signal frequency conversion sampling, alarm recording and other acquisition strategies to extract key equipment operation information, and hierarchically redundant storage data. Improve the real-time monitoring level of operating equipment and reduce the cost of operation and maintenance.