Intelligent monitoring system for power system SF6 switching station

Abstract

The invention provides an intelligent monitoring system for a power system SF6 switching station. The system comprises a network controller, a data processing terminal, an alarm unit, an on-line monitoring unit, an SF6 concentration and oxygen content comprehensive monitoring unit and an SF6 leakage positioning unit, wherein the data processing terminal is connected to the network controller; the alarm unit is connected with the data processing terminal and used for sending alarm according to the indication of the data processing terminal; the on-line monitoring unit, the SF6 concentration and oxygen content comprehensive monitoring unit and the SF6 leakage positioning unit are in signal connection with the data processing terminal through the network controller respectively; the SF6 leakage positioning unit is mobile; the on-line monitoring unit monitors the power system SF6 switching station in real time and transmits a detection signal to the data processing terminal through the network controller; and when abnormity is detected, the data processing terminal starts the SF6 concentration and oxygen content comprehensive monitoring unit to reduce a fault point range and then starts the SF6 leakage positioning unit to automatically track a fault point position. The intelligent monitoring system can analyze and process system abnormity in time to realize intelligent monitoring.

Description

technical field [0001] The invention relates to the field of electric equipment detection, in particular to an integrated device for monitoring the gas state and leak location in the SF6 switching station of the electric power system. Background technique [0002] In the field of gas state monitoring of power equipment, the traditional detection method is that the monitoring personnel visit the site to visually monitor the SF6 gas density relay installed on the site. The reading habit of the system and the installation of the density relay on the system site are not good for gas monitoring, and the sudden change of the gas content in the system cannot be reflected in time, which poses a severe challenge to the reliability of the system. [0003] At the same time, the traditional method of leak location is to equip protective clothing and enter the site for detection after the monitoring personnel are informed of the density relay alarm. According to the actual situation, the...

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Problems solved by technology

[0002] In the field of gas state monitoring of power equipment, the traditional detection method is that the monitoring personnel visit the site to visually monitor the SF6 gas density relay installed on the site. The reading habit of the system and the installation of the density relay on the system site are not good for gas monitoring, and the sudden change of the gas content in the system cannot be reflected in time, which poses a severe challenge to the reliability of the system

[0003] At the same time, the traditional method of leak location is to equip protective clothing and enter the site for detection after the monitoring personnel are informed of the density relay alarm. According to the actual situation, the bubbling method and air density method are used to detect the location of the leak point. The point efficiency is low, the workload of the operators is heavy, the timeliness and safety cannot be fully guaranteed, and it conflicts with the intelligent grid equipment in today's society, and the problem cannot be solved quickly and effectively, and the contradiction is prominent

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