Transformer oil/paper insulation aging experimental device and method

A technology for transformer oil and aging experiments, which is applied in the field of transformers and can solve problems such as complex structure and inconvenient operation

Active Publication Date: 2014-10-15
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Problems solved by technology

[0006] The purpose of the present invention is to provide a transformer oil / paper insulation aging test device, which is equipped with an adjustment mechanism, which can adjust the oil / paper insulation structure required for the experiment according to the needs of the experiment, and after the aging is over, there is no need to move Oil / paper insulation, directly extracting oil samples, easy to operate, used to solve the problems of complex structure and inconvenient operation of the oil / paper insulation aging test device in the prior art

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  • Transformer oil/paper insulation aging experimental device and method

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Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0053] Experimental device embodiment of the present invention:

[0054] Such as figure 1 As shown, the experimental device of this embodiment includes a shielded casing and a detection device located in the shielded casing. The shielding shell includes a metal upper cover plate 1 and a metal lower shielding shell 2. The metal lower shielding shell 2 is a box structure with an upper opening. The metal upper cover plate 1 is installed at the upper opening of the metal lower shielding shell 2. The metal upper cover A positioning groove is provided at the installation connection between the board 1 and the metal lower shielding shell 2 to prevent sliding. The upper metal cover plate 1 is equipped with a high-voltage electrode lead end for leading out a high-voltage electrode—tetrafluoroethylene insulating sleeve 3 and a low-voltage electrode lead end for leadi...

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Abstract

The invention relates to a transformer oil/paper insulation aging experimental device and method. The experimental device comprises a high voltage electrode, a low voltage electrode, a seal cavity and a screening shell, the high voltage electrode and the low voltage electrode are disposed in the seal cavity, an insulation paper sample is arranged between the high voltage electrode and the low voltage electrode, the seal cavity comprises an upper seal cavity and a lower seal cavity, miniature oil injection holes and miniature oil pumping holes are formed in the upper seal cavity and the lower seal cavity, an O-shaped seal ring is arranged at the connecting position of the upper seal cavity and the lower seal cavity, the high voltage electrode is located in the upper seal cavity and provided with a first screw rod, and the low voltage electrode is located in the lower seal cavity and provided with a second screw rod. By means of the transformer oil/paper insulation aging experimental device and method, an oil/paper insulation structure required by an experiment can be adjusted according to experiment requirements, an oil sample can be directly extracted without movement of oil/paper insulation after aging is finished, and problems that oil/paper insulation aging experimental devices are complicated in structures and inconvenient to operate in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to transformer oil / paper, and in particular to a transformer oil / paper insulation aging test device and test method. Background technique [0002] Power transformers, especially large oil-immersed power transformers, are one of the most important equipment in the power system. Their operational reliability is directly related to the safety and stability of the power system. The statistical data is based on that. The operation accidents of the transformer are mainly caused by its insulation system. Due to faults, the operating life of the transformer largely depends on the aging state of the oil / paper insulation system. Therefore, accurately diagnosing the aging state of the oil / paper insulation system is crucial to predicting the life of the transformer, and it is also the premise and basis for realizing the condition maintenance of the transformer. [0003] In most transforme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 吴剑敏黄华陈超杰吴建东李淑琦尹毅
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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