SF6 online monitoring system

Abstract

The invention discloses an SF6 online monitoring system which comprises a monitoring host. The monitoring host is connected with one or more control units. The monitoring host is internally provided with a central processor capable of receiving signals transmitted by the control units. The central processor is connected with a GSM communication module which can transmit the signals to a mobile terminal or the monitor center through a wireless network. The mobile terminal or the monitoring center is also internally provided with a GSM communication module. The mobile terminal or the monitoring center sends instructions to a GSM communication module in the monitoring host through the GSM communication module arranged in the mobile terminal or the monitoring center so as to finish remote control. The data signals monitored by the monitoring system can be fed back to monitoring personnel in time, the monitoring personnel can made corresponding measures in time, and safe accidents of power utilization occasions such as communities are reduced.

Description

technical field [0001] The invention relates to an on-line monitoring system of SF6 gas, which is mainly used in substations. Background technique [0002] 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 grounding switch of the incoming line or connect the grounding wire for the inspection and maintenance of the incoming line of the substation in the residential area, there is no anti-misoperation device to prevent the charged grounding knife or t...

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.

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