Title :
Study on the new technique for on-line monitoring of temperature in high voltage devices
Author :
Gao Liangyu ; Wenyuan, Guo ; Mingping, Mao ; Zhongzang, Hung
Author_Institution :
Dept. of Electr. Eng., Shanghai Tiedao Univ., China
Abstract :
A new technique for on-line temperature monitoring in high-voltage devices is proposed. The main principles and the structure of the software and hardware for this device are introduced. The signal is transmitted by infrared light, and the PTCR inorganic material is employed as a new temperature sensor. The transducer consists of the PTCR sensor in series with resistance. It has high sensitivity, broad dynamic range and good temperature resolution in the 80-110°C range. The results of the experiments show that the technique satisfies the heat-circle repetition and time-effectiveness stability. The devices can be applied to the joint point of the main circuit in GIS or metal enclosed switchgear
Keywords :
computerised instrumentation; condition monitoring; gas insulated switchgear; switchgear testing; temperature measurement; temperature sensors; 80 to 110 C; GIS; PTCR inorganic material; broad dynamic range; hardware structure; heat-circle repetition; high voltage devices; infrared light signal transmission; joint point; metal enclosed switchgear; online temperature monitoring; sensitivity; software structure; temperature resolution; temperature sensor; time-effectiveness stability; transducer; Circuit stability; Dynamic range; Hardware; Infrared sensors; Inorganic materials; Signal resolution; Temperature distribution; Temperature measurement; Temperature sensors; Transducers;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.876128
