Transformer substation SF6 gas state monitoring system based on NB-IoT technology

Abstract

The invention discloses a transformer substation SF6 gas state monitoring system based on an NB-IoT technology. The SF6 gas state can be monitored in real time at a far end, so that a feasible fault early warning scheme is provided for safe operation of equipment, the working level and the working quality are improved, and the preparation is made for operating the large data work for intelligent operation and inspection equipment. The monitoring system comprises a monitoring terminal unit located at a far end terminal, a communication channel unit used for transmitting the data of the monitoring terminal unit to a back-end data storage unit, and a data display unit connected with the data storage unit and used for displaying the data; the monitoring terminal unit comprises a temperature sensor loading assembly which is additionally arranged on an SF6 density relay of a transformer substation; the temperature sensor loading assembly comprises a temperature pressure sensor; an NB-IoT module is arranged in the temperature pressure sensor; the temperature pressure sensor and on-site display instruments are in wireless communication through the NB-IoT module; and all the on-site displayinstruments are in wireless connection with a wireless communication network of the communication channel unit.

Description

technical field [0001] The invention relates to a substation SF6 state monitoring system, which is specifically used for temperature and pressure data monitoring of all SF6 density relays in the substation. Background technique [0002] The SF6 density relay is an important protection and control element in SF6 electrical equipment, which plays a vital role in ensuring the reliable operation of the equipment. The operating pressure (P), temperature (T) and "density" value (P20) of SF6 gas ), must meet the relevant standards to keep SF6 electrical equipment in good working condition for a long time. However, more than 90% of the SF6 electrical equipment monitoring means is the pointer SF6 density relay, which does not have the function of remote data transmission, and cannot remotely monitor the gas pressure and temperature, and only displays the "density" value (P20). With the development of my country's industrial technology, some power companies have also replaced the rem...

AI Technical Summary

Problems solved by technology

However, more than 90% of SF6 electrical equipment monitoring methods are pointer SF6 density relays. This kind of relay does not have the function of remote data transmission, and cannot remotely monitor gas pressure and temperature. It only displays the "density" value (P20)

With the development of my country's industrial technology, some power companies have also replaced the remote SF6 density relay, but in the replacement process, the construction volume is huge and consumes a lot of manpower and material resources

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