Micro-water online monitoring and remote transmission system of transformer

Abstract

The invention discloses a transformer micro-water online monitoring and remote transmission system, and provides a transformer micro-water measuring scheme. When a transformer normally operates, the micro-water content and other parameters of transformer oil are transmitted to a background management system; if the transformer fails during operation and the micro-water content in the transformer oil exceeds a certain numerical value, then the background management system sends alarm information. Thus, the variation tendency of the micro-water content in equipment can be monitored on line in real time, and the accident potential can be discovered instantly; the cost on the periodical detection every year is saved, meters do not need to be detected, assembled and disassembled frequently; the working time of worker in dangerous occasions is reduced; electric power accidents can be prevented, thereby guaranteeing the operating safety of the equipment; and the power failure time and the accident loss are reduced, thereby realizing the operating state examination and repair of electric power equipment.

Description

technical field [0001] The invention relates to a remote transmission system for micro-water online monitoring of transformers. Background technique [0002] At present, the power transformer is not only one of the most important and expensive equipment in the power system, but also one of the equipment that causes the most accidents in the power system. Before the sudden failure of the transformer, the deterioration of the insulation and the latent fault will produce a series of effects and information such as light, electricity, sound, heat and chemical changes under the action of the operating voltage. Therefore, at home and abroad, not only regular preventive maintenance based on preventive tests is required, but also predictive maintenance strategies based on online monitoring are being studied successively, so as to monitor and diagnose latent faults or defects on-line in real time or regularly. The content of micro water in transformer insulating oil is also a parame...

AI Technical Summary

Problems solved by technology

Because it is a direct measurement, this method has high requirements for the sensitivity and accuracy of the film capacitance, but it often fails to achieve the expected results in practical applications.

Images