Transformer oil-paper insulation multi-factor accelerated aging test device and test method
A transformer oil, accelerated aging technology, applied in the direction of paper testing, measuring devices, instruments, etc., can solve complex and other problems
Inactive Publication Date: 2011-12-14
CHONGQING UNIV
View PDF0 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The oil-paper insulation is an important part of the internal insulation of the oil-immersed transformer. In order to study and master the aging law of the transformer, the method of accelerated aging test is often used for research, but the existing technology is mainly thermal stress, electrical stress or mechanical stress. The single-factor aging research, the joint aging research of electrical, thermal and mechanical stress has not been reported so far, and the aging law of multi-factor aging is not a simple superposition of single-factor aging, it is much more complicated than single-factor aging, in order to obtain accurate test As a result, to grasp the aging law of oil-paper insulation, it is necessary to provide a transformer oil-paper insulation aging test device and method for the combined aging of three factors of electric-thermal-mechanical stress, but at present, there is no such test device and method in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0024] Referring to Fig. 1, the transformer oil-paper insulation multi-factor accelerated aging test device of this preferred embodiment includes an electrothermal aging box 2, and the bottom of the inner cavity of the electrothermal aging box 2 is provided with a vibrating device 8, and the stainless steel box body 4 is arranged on the vibrating device 8 , can vibrate with the vibrating device, the upper cover of the stainless steel box 4 is an insulating sealing plate 7, and three silicon steel plates 5 are arranged at intervals in the stainless steel box 4 as ground electrodes. When the device is in use, the insulating paper 9 is pasted on the silicon steel On the plate 5, three coils are respectively wound and fixed on the outside of the insulating paper 9 as the high-voltage electrode 12, and insulating oil 13 is injected into the st...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
The present invention provides an electric-thermal-mechanical stress three-factor combined aging test device and test method for transformer oil-paper insulation aging research; the test device includes an electric heating aging box, and a transformer oil-paper insulation simulation device, A vibration device and a temperature control device for controlling the temperature in the electrothermal aging box, the vibration device can drive the transformer oil-paper insulation simulation device to vibrate, and the transformer oil-paper insulation simulation device is electrically connected to a high-voltage power supply; the test method includes vacuum drying the insulation paper , After vacuum immersion in oil, paste it on the ground electrode in the stainless steel box of the test device, wind the coil on the outside of the insulating paper and the ground electrode as a high-voltage electrode, and inject insulating oil into the stainless steel box; connect the high-voltage lead wire to the high-voltage power supply, and turn on Vibration device; take samples of insulating paper and insulating oil at intervals, and measure insulation aging parameters.
Description
technical field [0001] The invention relates to a transformer component detection device and method, in particular to a transformer oil-paper insulation multi-factor accelerated aging test device and a test method. Background technique [0002] The transformer is a very critical large-scale equipment in the power system, and its main fault is the insulation fault caused by long-term aging. The oil-paper insulation is an important part of the internal insulation of the oil-immersed transformer. In order to study and master the aging law of the transformer, the method of accelerated aging test is often used for research, but the existing technology is mainly thermal stress, electrical stress or mechanical stress. The single-factor aging research, the joint aging research of electrical, thermal and mechanical stress has not been reported so far, and the aging law of multi-factor aging is not a simple superposition of single-factor aging, it is much more complicated than single-...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01N33/34
Inventor 廖瑞金周湶杨丽君李剑杜林陈伟根孙才新梁帅伟
Owner CHONGQING UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap