Title :
Residual current monitoring based on DeviceNet
Author :
Yue, Dawei ; Li, Kui ; Yuan, Jinli ; Zhang, Guanying
Author_Institution :
Dept. of Electr. Eng., Hebei Univ. of Technol., Tianjin
Abstract :
Residual current protective devices play an important role in electrical safety engineering. Under normal conditions, it is discovered that there exists leakage current during power transmission and it can change dramatically due to insulation fault or electrical shocks. Possible reasons for leakage current in power system are analyzed. Efforts have been made to monitor such leakage current. A residual current relay based on DeviceNet fieldbus is designed. Its controller, drive circuit and DeviceNet interface are introduced. The relay is connected to Rockwell NetLinx network. Despite of its monitoring function on the filed, the measured values are transmitted to the monitor workstation for recording and analysis. The result shows its reliable communication and perfect performance.
Keywords :
computerised monitoring; electrical safety; field buses; leakage currents; power engineering computing; power system measurement; power transmission; residual current devices; DeviceNet; Rockwell NetLinx network; electrical safety engineering; electrical shocks; insulation fault; power system leakage current; power transmission; residual current monitoring; residual current protective devices; Circuit faults; Dielectrics and electrical insulation; Electric shock; Electrical safety; Leakage current; Monitoring; Power engineering and energy; Power system protection; Power system relaying; Power transmission; DeviceNet; electrical safety; residual current monitoring;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4592856
