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Traction transformer layered oilpaper insulation dielectric response experiment system

A technology for traction transformers and oil-paper insulation, applied in the direction of testing dielectric strength, etc., can solve the problems of uneven insulation thermal aging speed, difficulty in effectively judging high-speed rail traction transformers, thermal aging rate differences, etc.

Active Publication Date: 2016-01-20
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

But at present, there is still no effective means to detect the insulation life of high-speed railway traction transformers. The thermal aging rate of layer insulation is extremely uneven, and even the thermal aging rate of different parts of the same insulation is very different. Existing methods are difficult to effectively judge the remaining life of oil-paper insulation with extremely uneven aging distribution characteristics of high-speed rail traction transformers.

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  • Traction transformer layered oilpaper insulation dielectric response experiment system
  • Traction transformer layered oilpaper insulation dielectric response experiment system
  • Traction transformer layered oilpaper insulation dielectric response experiment system

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Embodiment Construction

[0018] The present invention will be further explained below in conjunction with the drawings:

[0019] figure 1 Shown is a schematic diagram of the appearance structure and composition of the experimental system of the present invention. by figure 1 It can be seen that a traction transformer layered oil-paper insulation dielectric response experiment system includes: a transformer oil tank 2, a layered insulation system placed in an experiment box 4, a connecting device between the transformer oil tank 2 and the experiment box 4, an oil pump 3, and a plastic hose 1. No. 1 multi-tube connector 5, No. 2 multi-tube connector 12, dielectric response tester 14, control and data acquisition system 15, and DC power supply 17. The transformer oil tank 2 is connected to the oil pump 3 through the hose 1, the oil pump 3 is connected to the second multi-pipe joint 12 through the hose 1, and the second multi-pipe joint 12 is threaded to the experiment box 4, and the experiment box 4 passes ...

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Abstract

The invention discloses a traction transformer layered oilpaper insulation dielectric response experiment system comprising a transformer oil tank, a layered insulation system disposed in an experiment box body, a connecting device (an oil pump, a plastic hose and multi-pipe joints) of the transformer oil tank and the experiment box body, a dielectric response tester, and a control and data acquisition system. The experiment system of the invention can be used for simulating non-uniform heat aging in an actual traction transformer oilpaper insulation system and researching the dielectric response characteristic of the oilpaper insulation of non-uniform heat aging, and can help to research remaining life evaluation of the oilpaper insulation with non-uniform heat aging distribution.

Description

Technical field [0001] The invention belongs to the field of transformer insulation state detection, and specifically relates to a traction transformer layered oil-paper insulation dielectric response experimental system. Background technique [0002] 2015 National Government Work Report of the Two Sessions: my country's high-speed railway operating mileage has exceeded 16,000 kilometers, exceeding the total mileage of high-speed railways in other countries. At the same time, China's high-speed rail going overseas has risen to the height of national strategy. The service life and reliability of equipment are important factors for the long-term safe operation of my country's high-speed railways and the successful implementation of the "high-speed rail going global" strategy. Traction transformers are the core power supply equipment for high-speed railways, and their effective service life and life management have attracted widespread attention in the industry. However, at present...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 周利军王东阳江俊飞王路伽朱少波曾原弢
Owner SOUTHWEST JIAOTONG UNIV
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