Analog device for on-line monitoring of dissolving gas in transformer oil and detection method thereof

Abstract

The invention relates to an analog device for on-line monitoring of dissolving gas in transformer oil and a detection method thereof. The analog device comprises a hydraulic circulatory system, a fuel tank temperature control system and a gas collection detection system; the hydraulic circulatory system comprises a fuel tank and an oil pump which connected through a circulation pipeline, a gas inlet port is arranged on the circulation pipeline, and a flow control valve is also provided; the fuel tank temperature control system comprises a heating pipe and a temperature sensor arranged in the fuel tank, a temperature controller respectively connected with the heating pipe and the temperature sensor; the gas collection detection system comprises at least one group of a gate valve, an air chamber and a gas detector which are connected through the pipeline in order, the gate valve is connected with the fuel tank through the pipeline, an oil gas separating membrane is arranged between the gate valve and the air chamber, and the analog device detects oil gas separating effects by changing difficult conditions to screen the optimal condition. Compared with the prior art, the analog device has the advantages of simple structure, convenient operation, and accurate simulation result.

Description

technical field [0001] The invention relates to a simulation device, in particular to a simulation device for on-line monitoring of dissolved gas in transformer oil and a detection method thereof. Background technique [0002] Power transformer is one of the important equipment in power transmission and distribution network. Its reliability is directly related to whether the power grid can operate safely, effectively and economically. The composition of dissolved gases in normal operating transformer oil is mainly O 2 and N 2 , but due to some non-failure reasons (such as normal deterioration of gas production, a small amount of gas may be formed during oil refining and not completely removed during oil and gas separation, etc.), the oil can also contain a certain amount of fault gas. When there is a fault inside the equipment, a large amount of fault gas will be produced, and its composition and content are closely related to the type of fault and its severity. [0003]...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of polymer oil-gas separation membrane as the degassing link of transformer fault gas is that it takes a long time for the oil-gas separation process to reach equilibrium, and the oil-gas separation equilibrium time of different fault gases varies greatly, so the research focus on polymer oil-gas separation membrane has been focused on how to shorten the time required for the oil-gas separation process to reach equilibrium

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