GIS internal circuit breaker operating temperature online monitoring system based on surface acoustic wave technology

• Main Authors: CHEN XUEWEI, LI XINGWANG, LU QIFU, LI CHENGRONG, RAO ZHANGQUAN, LYU HONG, WANG ZENGBIN, CHEN YILONG, MA GUOMING, PENG XIANGYANG, LIN CHUNYAO, TANG YING, ZHENG SHUSHENG, CHEN ZUWEI
• Format: Patent
• Language: English
• Published: 27.05.2015
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The utility model discloses a GIS internal circuit breaker operating temperature online monitoring system based on a surface acoustic wave technology. The system comprises an acquisition device and an SAW temperature sensor. The acquisition device is installed on the shell of a gas insulated switch. A circuit breaker is arranged in the shell of the gas insulated shell. The SAW temperature sensor is a passive and wireless temperature sensor and the SAW temperature sensor is installed on the high-voltage guide rod of the circuit breaker. The acquisition device is used for emitting a wireless radio frequency signal to the SAW temperature sensor to act as an excitation signal of the SAW temperature sensor. Operating temperature of the gas insulated switch internal circuit breaker is monitored via the acquisition device and the SAW temperature sensor. The characteristics of the surface acoustic wave technology are fully utilized by the system, and online monitoring of operating temperature of the GIS internal insulated switch is realized under the premise of guaranteeing GIS internal insulating property.