A temperature flow rate control device and test method for transformer oil insulation thermal aging test

A flow rate control device, transformer oil technology, applied in the direction of testing dielectric strength, etc., can solve the problem of inability to realize oil temperature gradient change, etc., and achieve the effect of low cost and substantial accuracy

CN104297648BActive Publication Date: 2017-01-18SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-01-18

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Abstract

A temperature and flow speed control device used for a transformer oil insulation heat ageing test is used for cooperatively realizing quantitative research of transformer oil insulation heat ageing and comprises a cavity system and a pipeline system. The cavity system comprises a cavity, a sealing cover for sealing the cavity and an electrochemical monitoring instrument arranged in the cavity, wherein one oil inlet and at least two oil outlets are formed in the cavity, at least three openings are formed in the sealing cover, a temperature detector and a simulation heat source device are arranged in the openings, and the depths of the temperature detector and the simulation heat source device are controllable. The pipeline system comprises a pipeline, an oil pump, an oil heater and a confluence device, wherein the pipeline an oil inlet pipeline leading to the oil inlet and oil outlet passages connected to the oil outlets, the oil inlet pipeline is provided with the oil heater and the oil pump, and the oil outlet passages are gathered through the confluence device and then connected to the oil inlet pipeline again. The temperature and flow speed control device used for the transformer oil insulation heat ageing test can cooperatively realize quantitative research of transformer oil insulation heat ageing, provide feedback for qualitative research and improve the accuracy of qualitative research.
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Description

technical field

[0001] The invention belongs to the field of on-line insulation monitoring of electrical equipment, in particular to the insulation performance detection and test in the aging process of transformer oil, and in particular to a temperature flow rate control device and a test method for the thermal aging test of transformer oil insulation. Background technique

[0002] The insulation performance of transformer oil during the aging process, including resistivity, dielectric constant, breakdown field strength, etc., has long been concerned by the academic and engineering circles, especially the real-time detection and quantitative analysis of the insulation performance changes during the aging process of transformer oil There is a lack of effective technology and test equipment. At the same time, the lack of such test equipment also hinders the in-depth analysis and research on the thermal aging mechanism of transformer oil insulation in the academic circle. [...

Examples

Embodiment Construction

[0057] In the following, a temperature flow rate control device for transformer oil insulation thermal aging test and a test method thereof according to the present invention will be further described in detail according to the drawings and specific embodiments.

[0058] Such as figure 1 A temperature flow rate control device for thermal aging test of transformer oil insulation is shown, which is used to cooperate with quantitative research on thermal aging of transformer oil insulation, including cavity system and piping system;

[0059] The cavity system includes a cavity (1) for holding transformer oil, a cover (2) for sealing the cavity, and an electrochemical monitor (3);

[0060] An oil inlet (4) and at least two oil outlets (5) are opened on the cavity, at least three openings are set on the sealing cavity cover, and the A temperature detector (6) and a simulated heat source (7) are built into the opening;

[0061] The electrochemical monitor is used to realize the re...