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High and low temperature shock thermal aging test device for simulating transformers with different oil flow speeds

A technology for simulating transformers and experimental devices, applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as the inability to consider the influence of traction transformer oil flow, and achieve the effect of reducing blockage

Active Publication Date: 2018-05-04
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

It can simulate the drastic temperature change caused by the traction load, but it can only study the static characteristics of the material, but it cannot consider the influence of the oil flow inside the traction transformer

Method used

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  • High and low temperature shock thermal aging test device for simulating transformers with different oil flow speeds

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings and specific implementation process. It should be emphasized that the specific implementation cases described here are only used to explain the present invention, and are not used to limit the scope of the inventive concept and the claims thereof.

[0023] figure 1 It is a diagram of an experimental device for simulating high and low temperature shock thermal aging of transformers with different oil flow speeds. An experimental device for simulating high and low temperature shock thermal aging at different oil flow rates of transformers, including an adiabatic test box 1, a controllable circulating water cooling device, a controllable oil flow circulating device, an experimental control system 4, a multi-layer oil paper insulation sample rack 5, and a heating resistor Wire 6, controllable AC power supply 7, PT100 temperature sensor 8, controllable circulating water pump 9, adjustable...

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Abstract

The invention relates to an experimental device for simulating the high and low temperature impact thermal aging of transformers with different oil flow rates, including a transformer oil tank, a layered insulation system placed in the experimental box, and a connection device between the transformer oil tank and the experimental box (oil pump, plastic hose, multi-pipe joints), dielectric response testers, and control and data acquisition systems. The experimental system of the invention can simulate the uneven thermal aging in the actual traction transformer oil-paper insulation system, study the dielectric response characteristics of the oil-paper insulation with uneven thermal aging, and help study the residual life evaluation of the oil-paper insulation with uneven aging distribution characteristics.

Description

technical field [0001] The invention relates to an experimental device, in particular to an experimental device for simulating high and low temperature shock thermal aging of transformers with different oil flow velocities. The technology is used to study the actual thermal aging process of oil-paper insulation of traction transformers. Background technique [0002] Focusing on the country's "One Belt, One Road" strategy, the total number of high-speed rail projects that have strategic cooperation agreements or potential cooperation intentions with China has reached 34,700 kilometers, accounting for 37.2% of the global high-speed rail construction plan. The traction transformer is one of the core equipment of the high-speed rail power supply system. Its service life depends on the aging degree of the insulation, and the traction impact load is the main factor for the deterioration of the insulation performance of the transformer. The traction load has the characteristics of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/00
Inventor 王路伽周利军王东阳江俊飞刘桓成张讥培叶果
Owner SOUTHWEST JIAOTONG UNIV
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