Transformer internal thermal fault simulation experiment device

Abstract

The invention provides a transformer internal thermal fault simulation experiment device which comprises a shell with an inner cavity, a first oil inlet pipe arranged at the bottom of the shell and an exhaust pipe arranged at the top of the shell, and further comprises a heating mechanism which comprises a heating piece arranged in the inner cavity of the shell and a fixing piece used for fixing the heating piece; and a gas taking mechanism which comprises a gas taking pipe communicated with the upper part of the inner cavity of the shell and gas taking equipment connected with the gas taking pipe. By arranging the heating mechanism, thermal faults can be simulated, gas escaping from insulating oil in the inner cavity can be collected through the arranged gas sampling mechanism after fault simulation is completed, an oil sample in the shell is taken out through the oil sampling mechanism, and the gas sample and the oil sample are analyzed. In the prior art, only oil samples can be collected for analysis, according to the method, the insulating oil gas production rule caused by the fault can be reflected more comprehensively and accurately, and a more reliable reference basis is provided for diagnosis and judgment of the fault type of the transformer.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a thermal fault simulation experiment device inside a transformer. Background technique [0002] The transformer is one of the core equipment of the power system. Once a failure occurs, it will cause a large-scale and long-term power outage in an area, causing huge losses to the economy and great inconvenience to life. Large-scale power transformers are mostly oil-immersed structures, and their main insulating media are insulating oil and insulating paper. The former mainly plays the role of internal insulation and heat dissipation of the transformer, and the latter plays the role of insulation and support. The oil-paper insulation system is to ensure the safe operation of the transformer. Key factor. [0003] When the oil-immersed transformer in operation is subjected to abnormal heat, the insulating oil will be decomposed and a variety of gases will be produced, most of w...

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Problems solved by technology

[0004] The existing transformer fault simulation system simulates the fault, and then takes out the insulating oil in the transformer for detection to analyze the dissolved gas in the oil under the fault. Since the gas escape is not considered, the detection results cannot accurately reflect the insulation caused by the fault. Law of oil and gas production

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