Oil paper insulation microbubble generation and creeping discharge test platform
A surface discharge and oil-paper insulation technology, which is applied in nuclear power generation, test ship construction, and greenhouse gas reduction, can solve problems affecting the operating life and failure rate of UHV transformers, reducing insulating oil, paper dielectric strength, and moisture increase. Achieve the effect of ingenious structure, complete functions and reasonable design
Pending Publication Date: 2022-08-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
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Problems solved by technology
Deterioration of oil-paper insulation materials and local moisture will lead to increased moisture, seriously affecting the operating life and failure rate of UHV transformers, mainly reflected in the reduction of dielectric strength of insulating oil and paper and the risk of microbubbles due to moisture vaporization at high temperatures
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[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] The purpose of the present invention is to build an oil-paper insulation micro-bubble generation and creeping discharge experimental platform, obtain micro-bubble generation conditions under different operating conditions and carry out a simulation test of the micro-bubble creeping discharge process.
[0027] In order to make the above objects, features and advantages of the present invention more clearly understood, the present...
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The invention relates to an oil paper insulation microbubble generation and surface discharge test platform. The oil paper insulation microbubble generation and surface discharge test platform comprises a cylindrical tank body, a top end assembly, an internal discharge assembly, a high-voltage ceramic sleeve assembly, a grounding measurement assembly, a base and a bottom assembly, a hand wheel in the top end assembly is used for controlling the distance between the adjustable electrodes so as to simulate oil-paper insulation creeping discharge of different electrode distances, position adjustability of a support electrode in the internal discharge assembly is used for simulating oil-paper insulation creeping discharge of different electrode positions, and a micro-water meter in the top end assembly is used for simulating oil-paper insulation creeping discharge of different electrode positions. A pressure sensor in the top end assembly is used for acquiring a pressure value of a tank body in a test; an aviation plug in the grounding measurement assembly is connected with the sensor for acquiring data such as temperature and vibration in the test process; a heating pipe in the bottom assembly is used for increasing the oil temperature; the device is used for simulating the oil temperature of the oil-immersed power equipment under the normal working condition. Through the oil paper insulation microbubble generation and surface discharge test platform, microbubble generation conditions under different operation conditions can be obtained, a microbubble surface discharge process simulation test can be carried out, data reference is provided for the field of extra-high voltage transformer oil paper insulation experiments, and the safety of equipment is improved.
Description
technical field [0001] The invention relates to the field of ultra-high voltage transformer oil-paper insulation experiments, in particular to a transformer oil-paper insulation micro-bubble generation and creeping discharge experimental device. Background technique [0002] As the core key equipment in the UHV project, the safe and reliable operation of the UHV transformer is an important guarantee for my country's current energy supply and configuration. [0003] The life of an UHV transformer depends to a large extent on the state of its oil-paper insulation system. The deterioration of oil-paper insulation materials and local moisture will lead to increased moisture, which will seriously affect the operating life and failure rate of UHV transformers. It is mainly reflected in the reduction of the dielectric strength of insulating oil and paper and the risk of micro-bubbles due to moisture vaporization at high temperatures. Under different long-term operating conditions ...
Claims
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IPC IPC(8): G01R31/12G01R31/16
CPCG01R31/1263G01R31/16Y02E30/30
Inventor 赵涛许家薛刘云鹏杨超杰许颖葱郑亚萌顾朝亮朱文兵
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)