Title :
A High Sensitive Online Diagnosis System of Vacuum Degree in Vacuum Interrupter
Author :
Tongyi Huang ; Huirong Xiao ; Junqi Shi ; Jianguang OuYang ; Sheng Wang
Author_Institution :
Nonderstructive Test Key Lab. of Minist. Educ., Nanchang Hangkong Univ., Nanchang, China
Abstract :
Aiming to improve the on-line monitoring sensitivity of vacuum degree in vacuum interrupter, a new detection device has been proposed relied on the theory of shield potential method. The device adopts a rotary electric field sensor to detect the change of direct potential for obtaining the changing information of vacuum degree. The sensitivity of detection system has been improved through modifying the front-end signal collection circuit and handling digital filter processing. Using MATLAB-DSP integrated development environment makes the designed system more convenient and flexible and shortens the development cycle. The results show that the detection system has high sensitivity and strong anti-interference ability.
Keywords :
computerised monitoring; digital filters; digital signal processing chips; electric sensing devices; electromagnetic shielding; signal conditioning circuits; vacuum interrupters; Matlab-DSP integrated development environment; anti-interference ability; detection device; digital filter processing; direct potential change detection; frontend signal collection circuit; online diagnosis system; online monitoring sensitivity; rotary electric field sensor; shield potential method; vacuum degree; vacuum interrupter; Digital filters; Electric fields; Electric potential; Interrupters; MATLAB; Optical fiber amplifiers; Vacuum arcs; MATLAB-DSP integrated development environment; on-line monitoring; shield potential; vacuum degree; vacuum interrupter;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2013 Third International Conference on
Conference_Location :
Shenyang
DOI :
10.1109/IMCCC.2013.368
