Line Temperature Measurement System Based On Internet Of Things Technology Substation Equipment

The safe operation of power systems is significant, it tightly related to economic development and economic stability. As the modern power system is developing quickly toward the direction of high voltage, large unit and large capacity, the requirements of reliability is much higher.The temperature characteristic of electrical equipment is the temperature varies slowly at most times, however, when there is an equipment failure, a sudden change of temperature may occur. So it is important to perform online temperature monitoring to potential overheat parts.For the substation, Knife contact, cable connectors, copper connections, switch contacts, reactors, capacitors, arc-suppression coil and the equipments and cables within high voltage switchgear is easily overheat because of all kinds of reasons. So it is extremely important to find a online substation temperature monitoring program which satisfy the requirements of low-priced, easily-conducted and well adapted.The development of the internet of things provides a new way for the substation equipments temperature online monitoring. The internet of thing is a network concept, according to the protocol it connects things to internet to perform intelligent recognition, track, locate, monitor and management.The program of temperature online monitoring is to place wireless sensor networks at temperature monitoring point. Through the wireless network temperature data is transmitted to base station. Then the base station transmits data to management center and the temperature management software will realize online monitoring, visible display and linkage alarm. According to operation temperature, relative temperature and temperature difference the state of equipments can be judged.This paper compares some different methods of substation temperature monitoring. Through the comparison the paper presents the temperature monitoring method based on the technique of the internet of things. In this paper, the method presented is studied and analyzed, research program, typical configuration and the function is given too. The substation temperature online monitoring program is a important application in the smart grid. This program is basically realized by digital wireless temperature monitoring equipment, it is able to achieve online temperature monitoring on all major equipments of substation, and is also able to provide data support to condition-based maintenance information。The program presented in this paper is a evolution of electrical equipment temperature monitoring. Compared to traditional methods, it is low-priced, easily-conducted and well adapted, so it is of great engineering significance.