Intelligent transformer oil level detection system based on pressure sensing system

Abstract

The invention relates to an intelligent transformer oil level detection system based on a pressure sensing system, which comprises a pressure signal collection device, a controller and an oil-leadingpipeline connected with an expansion tank. The pressure signal collection device is connected with the oil-leading pipeline and the controller respectively. The system also comprises a laser range finder, a lifting seat for adjusting a height of the laser range finder and a holder for adjusting an angle of the laser range finder, wherein the holder is arranged on the lifting seat, and the laser range finder is arranged on the holder. Compared with the prior art, the intelligent transformer oil level detection system is additionally provided with the laser range finder, and by combining the holder and the lifting seat, a height difference between a pressure sensor and the bottom of the expansion tank can be realized, so that the accuracy of oil level measurement is improved.

Description

technical field [0001] The invention relates to an oil level detection system, in particular to an intelligent transformer oil level detection system based on a pressure sensing system. Background technique [0002] In power transmission and transformation projects, there are often oil pillows used for heat dissipation of transformers and reactors (converters) during use. The method is to install transformers (or reactors) in oil tanks. Due to the thermal expansion of transformer oil The reason for cold shrinkage is to configure and adjust the oil conservator for storing transformer oil, and the normal oil volume of the oil conservator is the key to ensure the normal operation of the transformer. [0003] For example, Chinese patent CN107367313A discloses a patrol instrument for measuring the oil level of a transformer oil conservator, which includes a signal acquisition device and a display control device connected to each other through a shielded cable. The signal acquisit...

AI Technical Summary

Problems solved by technology

[0005] Although the Chinese patent CN108593043A has perfectly solved the liquid level detection in the past inspection work, but with the adjustment of the business, new problems have been discovered. The above two liquid level measurement devices are based on the distance between the bottom of the oil conservator and the pressure sensor. The distance is known, that is, all the height data needs to be stored in the database, but in the actual application process, because the inspection and maintenance are managed by different persons in charge, it often happens that the hardware connection part is changed but the data is not uploaded In this case, the problem of inaccurate measurement will occur

Images