Fluorinated 110kV basin-type insulator

A basin-type insulator and insulator technology are applied in the field of epoxy basin-type insulator surface treatment, which can solve the problems of easy accumulation of charges on the surface of the insulator, aging and degradation of the surface of the insulator, and reduction of the surface dielectric strength, etc., and achieve the improvement of DC flashover performance and cost. Inexpensive and long-life effect

Pending Publication Date: 2020-04-28
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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Problems solved by technology

[0003] In gas-insulated power transmission equipment, the surface of the epoxy insulator is the weakest area of ​​the system insulation. This is because on the one hand, the surface of the insulator is easy to accumulate charges, and the electrical breakdown of the system is most likely to occur along the surface of the insulator. On the other hand, long-term operation During the process, the surface o

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  • Fluorinated 110kV basin-type insulator
  • Fluorinated 110kV basin-type insulator

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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0033] Such as Figure 1-2 As shown, a fluorinated 110kV pot insulator proposed by the present invention includes an insulator body 1;

[0034] A fluorinated layer 102 is formed on the outer surface of the insulator body 1 through a fluorination device, wherein the insulator body 1 is made of epoxy resin mixture 101 .

[0035] The fluorinated 110kV pot insulator provided by the present invention directly fluorinates the...

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Abstract

The invention relates to a fluorinated 110kV basin-type insulator, which comprises an insulator body, wherein a fluorinated layer is generated on the outer surface of the insulator body through a fluorination device, and the insulator body is made of an epoxy resin mixture; the thickness of the fluorinated layer is 0.3-2[mu]m; and the epoxy resin mixture comprises epoxy resin and aluminum oxide. According to the invention, the surface layer of the epoxy insulator is fluorinated by using a direct fluorination technology, the cost is low, the formula and the production process do not need to beadjusted, the direct current flashover voltage of the fluorinated 110kV basin-type insulator is increased to average 290kV from average 250kV before fluorination in a sulfur hexafluoride gas environment of two atmospheric pressures, and the direct current flashover performance of the fluorinated 110kV basin-type insulator is improved by 10%-20%; the conductivity of the surface of the insulator body is improved from 1*10<-19> to 1*10<-13> and reaches 6 orders of magnitudes or above, surface charge accumulation of the insulator body can be effectively inhibited, and the service life of the insulator body is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of surface treatment of epoxy pot insulators, in particular to a fluorinated 110kV pot insulator. Background technique [0002] Basin insulator is the key insulating part of the high-voltage switch of GIS combined electrical equipment. It plays the role of dividing the gas chamber, supporting the internal conductor and insulating the live conductor and the shell in the high-voltage switch. Its quality will directly affect the operation of the GIS combined electrical switch. quality. Although GIS and GIL have been successfully applied in high-voltage alternating current (HVAC) power transmission and distribution systems for about half a century, the existing research results and practical applications have shown that the design and manufacture of high-voltage direct current with the same insulation reliability as HVAC GIS and GIL (HVDC) GIS and GIL are still a challenge, mainly because the surface of the epo...

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Application Information

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IPC IPC(8): H01B17/42H01B17/50
CPCH01B17/42H01B17/50
Inventor 张卓安振连杨勇杨威颜丙越邢照亮刘芳刘绪雷李秀芝李文强赵晓博王灿灿
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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