Power equipment temperature online monitoring system and method

Abstract

The invention discloses a power equipment temperature on-line monitoring system and method. The system comprises a wireless temperature sensor which is used for measuring the temperature of power equipment, and transmitting the measured temperature data to a temperature measurement communication terminal; the temperature measurement communication terminal is used for periodically and circularly collecting temperature data sent by the wireless temperature sensor and sending the temperature data to the data management center; the data management center is used for managing the measured temperature data in a centralized manner and displaying and storing the data of each power equipment monitoring point in real time; and the management workstation is used for monitoring the power equipment inthe form of graphs, lists, historical curves, real-time curves and/or alarms. According to the invention, a wireless temperature sensing technology is adopted to carry out real-time on-line monitoringon the temperature of power equipment such as a high-voltage switch cabinet, a transformer and a reactor and a cable joint, the current temperature is displayed in real time, the temperature change rule of a monitoring point is analyzed through software, the fault trend is predicted, an alarm is given in time when the temperature exceeds a limit, and a fault part is accurately provided.

Description

technical field [0001] The invention relates to an online monitoring system and method for the temperature of electric equipment, belonging to the technical field of communication. Background technique [0002] During the long-term operation of important equipment such as high-voltage switchgear, busbar joints, and outdoor knife switches in power plants and substations, the gap or contact resistance will increase due to aging, looseness, or pollution, which will cause continuous heating during flow, and serious It will cause equipment burnout and even lead to bigger accidents. In recent years, there have been many switch overheating accidents in power plants and substations, resulting in fires and large-scale blackouts. Solving the problem of switch overheating is the key to prevent such accidents, and realizing online temperature monitoring is an important means to ensure the safe operation of high-voltage equipment. [0003] Through the analysis of a large number of powe...

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Problems solved by technology

[0004] However, it is difficult to monitor the temperature of the contacts of the switch cabinet in real time. This is because the space of the switch cabinet is limited, but there are many components in the cabinet, and most of the high-voltage live components are exposed. The conventional temperature measurement method cannot be used, so the wireless temperature measurement system has become Trends in Thermometry

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