An electrical aging test system for oil-paper composite insulation

An oil-paper insulation and composite insulation technology, applied in the electric power field, can solve the problems of no mature oil-paper insulation electrical aging test system, unable to meet the safety and reliability requirements of oil-immersed equipment in the power grid, etc., to ensure accelerated aging control, realize superposition control, The effect of improving usability

Active Publication Date: 2017-01-11
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the thermal aging theory and test methods for oil-paper composite insulation are relatively mature, but there is no mature test system suitable for oil-paper insulation electrical aging, which cannot meet the safety and reliability requirements of power grid oil-immersed equipment

Method used

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  • An electrical aging test system for oil-paper composite insulation
  • An electrical aging test system for oil-paper composite insulation
  • An electrical aging test system for oil-paper composite insulation

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Embodiment Construction

[0014] The present invention will be further explained below in conjunction with the drawings. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0015] See figure 1 , The electrical aging test system of the present invention includes AC and DC high voltage power supply, oil-paper insulated test sample tank, high-voltage resistance-capacitance divider, partial discharge tester and host computer; AC and DC high-voltage power supply is connected with the oil-paper insulated test sample tank for Oil-paper insulation provides the voltage required for electrical aging; the high-voltage resistance...

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Abstract

The invention discloses an oiled paper compound insulation electrical ageing test system which comprises an alternating current-direct current high voltage power supply, a high voltage capacitance-resistance divider, an oiled paper insulation sample tank, a partial discharge measuring instrument and an upper computer. The alternating current-direct current high voltage power supply is connected with the oiled paper insulation sample tank. The high voltage capacitance-resistance divider is connected with the oiled paper insulation sample tank. The partial discharge measuring instrument is connected with the oiled paper insulation sample tank, and collects partial discharge signals inside an oiled paper insulation sample. The upper computer is in two-way communication connection with the alternating current-direct current high voltage power supply and the partial discharge measuring instrument. According to the oiled paper compound insulation electrical ageing test system, alternating current-direct current compound voltage is adopted for oiled paper insulation, accurate and accelerated ageing is conducted on a solid insulation paper board, and an oiled paper insulation electrical ageing laboratory test is achieved.

Description

Technical field [0001] The invention belongs to the field of electric power, and particularly relates to an electric aging test system for oil-paper composite insulation. Background technique [0002] Oil-paper composite insulation is the main insulation method for power equipment, and aging / deterioration problems inevitably occur during operation, which will greatly affect the reliability of the equipment. In order to meet the urgent needs of power equipment such as voltage level, gradual increase in capacity, and volume miniaturization, the original oil-paper composite insulation is limited by technical conditions such as traditional dielectric insulation theory and test methods, and the operating reliability of the equipment is greatly reduced, and the actual service life is often difficult to reach The design expectations can't meet the needs of power users, especially when the equipment is overloaded, overhauled or malfunctioned, resulting in a serious decline in the economy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
Inventor 董明任明刘媛吴雪舟张冠军邓永辉李金忠张书琦刘锐程涣超高飞汪可
Owner STATE GRID CORP OF CHINA
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