Transformer oil chromatogram gas cylinder automatic switching system and switching method thereof

Abstract

The invention relates to the technical field of electric power, in particular to a transformer oil chromatogram gas cylinder automatic switching system, and further relates to a switching method. Thetransformer oil chromatogram gas cylinder automatic switching system comprises at least two gas cylinders, a control device and a gas outlet, a valve controller of each gas cylinder is connected withan input port of the control device, the gas outlet is connected with an output port of the control device, and data transmission can be achieved between the control device and a PMS. Through the method, the gas cylinder state can be automatically monitored online, the operation of automatically switching to standby cylinders can be achieved, so that manual operation is reduced, and the time is saved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an automatic switching system and a switching method for transformer oil chromatographic gas cylinders. Background technique [0002] At present, most of the 220kV substations are unattended substations. When the oil chromatography online monitoring device encounters no gas in the bottle, the alarm information cannot be uploaded to the PMS (equipment management system) of the power supply system. As a result, maintenance personnel cannot obtain alarm information in real time. Since only one carrier gas cylinder is connected to the online monitoring system, we need to manually replace the carrier gas cylinder on site. [0003] In order to facilitate the maintenance personnel to replace the gas cylinder when the carrier gas cylinder is empty, a spare gas cylinder is generally placed behind the control cabinet. If the gas cylinder is out of gas and the oil chromatography is...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the 220kV substations are unattended substations. When the oil chromatography online monitoring device encounters no gas in the bottle, the alarm information cannot be uploaded to the PMS (equipment management system) of the power supply system.

As a result, maintenance personnel cannot obtain alarm information in real time. Since only one carrier gas cylinder is connected to the online monitoring system in the device, we need to manually replace the carrier gas cylinder on site.

[0003] In order to facilitate the maintenance personnel to replace the gas cylinder when the carrier gas cylinder is empty, a spare gas cylinder is usually placed behind the control cabinet. If the gas cylinder is out of gas and the oil chromatography is offline, the spare gas cylinder can be replaced on site. According to the statistics of the 220 kV substation undertaken by the unit, if several substation colleagues have gas cylinders without gas, it is very necessary to replace multiple groups of gas cylinders. Greatly affected the online rate of oil chromatography and reduced the indicators of the team

[0004] Consider whether multiple gas cylinders can be automatically switched to achieve uninterrupted supply of carrier gas, so how to design a solution that can automatically switch between the main gas cylinder and the backup gas cylinder to solve the problem of manual replacement when the carrier gas cylinder is empty become an engineering challenge

Images