Equipment outlet casing adapting electrical conductivity adaptive control composite
An adaptive regulation and composite material technology, applied in the direction of heterogeneous insulating materials, circuits, electrical components, etc., can solve problems such as large size, internal heating, quality problems, etc., achieve efficiency and economic benefits, improve heat dissipation performance, The effect of simplifying the production process
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[0030] Example 1
[0031] The outlet bushing of the equipment in this embodiment is used at the 110kV DC voltage level, the inorganic filler powder particles in the equalizing layer 5 and the electrode extension layer 7 are all made of ZnO varistor ceramic powder, and the high-insulation strength organic materials are all made of 100 parts. Yuan ethylene propylene rubber; wherein the particle size of the ZnO pressure-sensitive ceramic powder used in the pressure equalizing layer 5 is 30-50 μm, and the ZnO pressure-sensitive ceramic powder is 80 parts; the electrode extension layer 7 is The particle size of the ZnO pressure-sensitive ceramic powder used is 150-200 μm, and the number of parts of the ZnO pressure-sensitive ceramic powder is 200 parts.
[0032] In this embodiment, 20 parts of carbon black are introduced into both the pressure equalizing layer 5 and the electrode extension layer 7 to adjust the threshold field strength of the electrical conductivity adaptive control com...
Example Embodiment
[0033] Example 2
[0034] The outlet bushing of the equipment in this embodiment is used at 500kV DC voltage level, the inorganic filler powder particles of the equalizing layer 5 and the electrode extension layer 7 are respectively SiC powder and ZnO pressure-sensitive ceramic powder, and high-insulation strength organic materials are used 100 parts of epoxy resin; among them, the particle size of SiC powder used in pressure equalization layer 5 is 300-500nm, and the number of SiC powders is 40 parts; ZnO pressure-sensitive ceramic powder particles used in electrode extension layer 7 The size is 150-200 μm, and the number of parts of the ZnO pressure-sensitive ceramic powder is 200 parts.
Example Embodiment
[0035] Example 3
[0036] The outlet bushing of the device in this embodiment is used at 330kV AC voltage level, the inorganic filler powder particles of the equalizing layer 5 adopts ZnO pressure-sensitive ceramic powder and SiC powder, and the inorganic filler powder particles of the electrode extension layer 7 adopt ZnO pressure. Sensitive ceramic powder and CB powder, high-insulation strength organic materials are all made of 100 parts polypropylene; among them,
[0037] The particle size of the ZnO pressure-sensitive ceramic powder and SiC powder used in the pressure equalizing layer 5 are 30-50μm and 600-800nm, respectively, and the parts of the ZnO pressure-sensitive ceramic powder and SiC powder are 50 parts and 20 parts respectively ;
[0038] The particle sizes of the ZnO pressure-sensitive ceramic powder and CB powder used in the electrode extension layer 7 are 100-125 μm and 30 nm, respectively, and the parts of the ZnO pressure-sensitive ceramic powder and CB powder are...
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