SF6 online monitoring and warning device

Abstract

The invention discloses an SF6 online monitoring and warning device. The SF6 online monitoring and warning device comprises a monitoring host and at least one control unit connected with the monitoring host, wherein a central processor for receiving signals transmitted by the control unit is arranged in the monitoring host and is connected with a GSM communication module, the GSM communication module is used for transmitting the signal to a mobile terminal or a monitoring center through a wireless network, and the mobile terminal or the monitoring center is used for remotely controlling the monitoring motor; the control unit comprises a gas transmitter and an anti-theft sensor, an SF6 gas probe, an oxygen concentration probe, a temperature sensor and a humidity sensor are arranged in the gas transmitter, a gas-liquid separator is arranged among the temperature sensor, the humidity sensor, the SF6 gas probe and the oxygen concentration probe, and the monitoring host is connected with a light indicator and a voice alarm. The SF6 online monitoring and warning device has the advantages that data signals can be timely fed back to a monitoring people, and the monitoring people can timely take corresponding measures, so that the safety incidents in electricity sites such as community transformer substation can be reduced.

Description

[0001] The patent application of the present invention is a divisional application of the invention name "SF6 Online Monitoring System". The original application date is August 5, 2015, and the application number is 2015104742861. technical field [0002] The invention relates to an on-line monitoring and alarming device for SF6 gas, which is mainly used in substations. Background technique [0003] With the rapid development of the electric power industry and the improvement of people's living standards, the number of community substations in the city is increasing, and the difficulty of operation and management is also increasing, especially the pressure to ensure the safety of people and equipment is also increasing. , but because there is no uninterruptible power supply in general community substations, some of its anti-misoperation interlocking functions cannot be realized, burying a major hidden danger for safe operation. For example, when it is necessary to close the ...

AI Technical Summary

Problems solved by technology

Some community substations use SF6 switches, but there is no device to monitor whether the SF6 gas content exceeds the standard. However, the "Electricity Safety Work Regulations" and "State Grid Corporation's Eighteen Major Power Grid Anti-Accident Measures" clearly require that "indoor installation of SF6 switchgear should Set up a certain number of oxygen meters and SF6 concentration alarms"

In addition, the community is unattended, and thieves have broken through doors (windows) many times, which also poses a major threat to safe operation.

There are a lot of electrical equipment in the substation in the community, and there is no fire monitoring, which poses a safety hazard

Transformers in community substations generally have over-temperature alarm contacts. Since there is no remote communication channel in the community substation, even if monitoring equipment is installed, it is difficult to achieve the expected effect due to the fact that there is no one on duty.

Images