Oiled paper insulation partial discharge inception voltage test system

An oil-paper insulation and partial discharge technology, which is applied in the electric power field, can solve the problem that the reliability and safety requirements of oil-immersed equipment in the power grid cannot be further met, and achieve the effect of accurate measurement, improved usability, and guaranteed accuracy.

Inactive Publication Date: 2014-07-30
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, there is no mature test system suitable for partial discharge inception voltage of oil-paper insulation, which cannot further meet the strict requirements of power grid oil-immersed equipment for operational reliability and safety

Method used

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  • Oiled paper insulation partial discharge inception voltage test system
  • Oiled paper insulation partial discharge inception voltage test system
  • Oiled paper insulation partial discharge inception voltage test system

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Embodiment Construction

[0024] 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.

[0025] see figure 1 , the partial discharge initial voltage test system of the present invention comprises AC high-voltage power supply, oil-paper insulating test product tank body, high-voltage resistance-capacitance voltage divider, partial discharge tester and host computer; AC high-voltage power supply is connected with oil-paper insulating test product tank body, Provide the voltage required for partial discharge for oil-...

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Abstract

The invention discloses an oiled paper insulation partial discharge inception voltage test system which comprises an alternating 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 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 high voltage power supply and the partial discharge measuring instrument. According to the oiled paper insulation partial discharge inception voltage test system, the partial discharge measuring instrument is adopted for testing the partial discharge inception voltage of oiled paper compound insulation with different temperatures and different electrode structures, and the partial discharge inception voltage of the oiled paper insulation system is accurately measured.

Description

technical field [0001] The invention belongs to the field of electric power, in particular to an oil-paper insulation partial discharge inception voltage (U PDIV ) test system. Background technique [0002] It is a common problem in high-voltage insulation that partial discharge occurs in some weak parts of the insulation of power equipment under the action of strong electric field. If partial discharge exists for a long time, it will lead to insulation deterioration or even breakdown under certain conditions degree. Partial discharge inception voltage is one of the most critical indicators in partial discharge testing, and its accurate measurement is directly related to the design, production, manufacture, operation and maintenance of equipment insulation structures and many other aspects. [0003] The IEC TR61294 standard stipulates that the partial discharge inception voltage of oil-paper insulation is an applied voltage with a discharge volume exceeding 100pC, and the...

Claims

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Application Information

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Patent Type & Authority Applications(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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