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Oiled paper compound insulation electrical ageing test system

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: 2014-07-30
STATE GRID CORP OF CHINA +3
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AI Technical Summary

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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  • Oiled paper compound insulation electrical ageing test system
  • Oiled paper compound insulation electrical ageing test system
  • Oiled paper compound insulation electrical ageing test system

Examples

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, further elaborate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended 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 the present application.

[0015] see figure 1 , the electrical aging test system of the present invention comprises AC / DC high voltage power supply, oil-paper insulating test product tank body, high-voltage resistance-capacitance voltage divider, partial discharge tester and upper computer; AC / DC high voltage power supply is connected with oil-paper insulating test product tank body, for The oil-paper insulation provides the voltage required for electr...

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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, in particular to an electrical aging test system for oil-paper composite insulation. Background technique [0002] Oil-paper composite insulation is the main insulation method for power equipment, and its inevitable aging / deterioration problems during operation will greatly affect the operational reliability of the equipment. In order to meet the urgent needs of power equipment voltage level, capacity increase and volume miniaturization, the original oil-paper composite insulation is limited by traditional dielectric insulation theory and test methods and other technical conditions, the reliability of equipment operation is greatly reduced, and the actual service life is often difficult to achieve. Design expectations can not meet the needs of power users, especially in the case of equipment overload, maintenance status or failure, resulting in a serious decline in the economy and reliability of equ...

Claims

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Application Information

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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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