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Power electronic capacitor

A technology of power electronics and capacitors, which is applied in multiple fixed capacitors, fixed capacitor electrodes, fixed capacitor dielectrics, etc., can solve the problems that are not easy to be applied to electric power intelligent devices, poor processing consistency, complex process, etc., to improve the intelligence of the power grid horizontal effect

Active Publication Date: 2014-06-25
南京因沃特信息科技发展有限公司
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Problems solved by technology

[0002] At present, the capacitors used in the power industry all use oil-immersed full-film iron-cased capacitor banks, which are bulky, inconvenient to operate, maintain and install, and expensive, with poor processing consistency and complicated processes, which cannot be mass-produced and are not easily applied to power Intelligent devices, therefore, require technological innovation and improvement of processing technology to change the above defects, so as to achieve the purpose of good quality capacitors, low energy consumption, small size, convenient installation and maintenance, and meet the requirements of electric power intelligence and low-carbon environmental protection

Method used

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Embodiment Construction

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] In the power electronic capacitor of the present invention, the single capacitor adopts high-zinc-aluminum composite medium, ceramic thin film, and silver alloy electrodes to be stacked, and after stacking, multiple capacitors adopt an internal series and internal parallel structure. The internal string structure is to connect multiple capacitors in series to ensure long-term stable operation of high voltage capacitors. The working electric field strength of the capacitor medium is evenly distributed, and the capacitors achieve uniform voltage division.

[0019] figure 1 When a single capacitor is connected in series, the capacitance of each capacitor is equal, the internal electric field is uniform, and there is no sudden change in the potential potential. Due to the use of rolling forming and various advanced...

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Abstract

The invention relates to a novel power electronic capacitor. The novel power electronic capacitor is composed of a high-zinc-aluminum composite medium, a ceramic film and a silver alloy electrode; and an integral structure is formed through the high-temperature spreading forming; an internal electric field distribution is uniform, and the distribution parameter is small; meanwhile, the integral voltage-resisting insulating performance is improved after being packed using high-temperature epoxy resin; through the test detection, the power electronic capacitor fully meets each index requirement of the power application and has wide application prospect.

Description

technical field [0001] The invention relates to a high-voltage capacitor applied to power lines and equipment with a voltage level of 6KV and above. With the rapid development of smart grids, the country's requirements for power equipment are getting higher and higher. The specific requirements for capacitors are large capacitance, small volume, convenient installation and maintenance, high voltage resistance and insulation strength. The temperature characteristic is better, and it is convenient to cooperate with the electric intelligent device. Background technique [0002] At present, the capacitors used in the power industry all use oil-immersed full-film iron-cased capacitor banks, which are bulky, inconvenient to operate, maintain and install, and expensive, with poor processing consistency and complicated processes, which cannot be mass-produced and are not easily applied to power Intelligent devices, therefore, require technological innovation and process improvement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/38H01G4/06H01G4/12H01G4/008
Inventor 周竞扬李宝亮
Owner 南京因沃特信息科技发展有限公司
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