Parallel synchronous verification device and method for online monitoring modules for gas dissolved in oil

Abstract

The invention discloses a parallel synchronous calibration device and method for online monitoring modules of gas dissolved in oil. The device comprises a working standard oil storage bag, an online monitoring module for the dissolved gas in the oil and a detection module for the dissolved gas in the comparison oil, wherein the working standard oil storage bag is used for storing working standard oil with a certain concentration; the online monitoring module for dissolved gas in oil and the detection module for dissolved gas in comparison oil are respectively communicated with the working standard oil storage bag through electromagnetic valves. The online monitoring module for the gas dissolved in oil is a device to be verified; and the detection module for the dissolved gas in the comparison oil is used for automatically detecting the concentration of the working standard oil and providing a comparison accurate value for the online monitoring module for the dissolved gas in the oil. According to the invention, simultaneous verification of a plurality of online monitoring modules for dissolved gas in oil can be realized, and the complete consistency of oil sample detection of the online monitoring module for dissolved gas in oil to be verified and the detection module for dissolved gas in oil providing a comparison value is ensured.

Description

technical field [0001] The invention belongs to the field of on-line monitoring of dissolved gas in oil, and in particular relates to a parallel synchronous verification device and method for an online monitoring module of dissolved gas in oil, and more specifically relates to a method for calibrating multiple online monitoring modules of dissolved gas in oil at the same time method and device. Background technique [0002] The analysis of dissolved gas in oil is the most critical means to evaluate the "health" of oil-filled equipment such as transformers and high-resistance power grids under non-power outage conditions. The analysis of dissolved gas in oil is divided into laboratory detection means and on-line monitoring means of equipment site. The development of laboratory detection methods is relatively mature and the detection accuracy is high, but oil samples must be taken from the equipment site and sent back to the laboratory, the detection cycle is long, and there ...

AI Technical Summary

Problems solved by technology

The development of laboratory detection methods is relatively mature and the detection accuracy is high, but the oil samples must be taken from the equipment site and sent back to the laboratory, the detection cycle is long, and there is a lag in the discovery of sudden failures; the equipment site online monitoring means can be continuously tracked on site , good timeliness, but due to the constraints of the development level of the instrument technology, the field operating environment and other factors, the detection accuracy is far behind the laboratory detection methods

Carrying out the calibration of the online monitoring module of dissolved gas in oil is an effective method to improve the accuracy and reliability of online monitoring. However, the current calibration method needs to take a certain concentration of working standard oil for the online monitoring device and the comparison detection device. Sampling, one is that there is a problem that it is difficult to ensure that the oil samples taken are completely consistent with step-by-step sampling; the other is that the calibration efficiency of the online monitoring device is low, and it can only be calibrated one by one

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