Solid-sealed polar pole of vacuum arc-extinguishing chamber
A technology of vacuum interrupter and solid-sealed pole, applied in high-voltage air circuit breakers, electrical components, electrical switches, etc., can solve problems such as many uncertain factors, heat dissipation, and high-voltage live parts are wrapped, and increase insulation creepage. The effect of improving electrical distance and insulation level
Inactive Publication Date: 2013-05-29
周惠明
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[0003] In addition, the insulation method of the vacuum interrupter has gone through air insulation-composite insulation-solid-sealed insulation, in which air insulation: the live part of the interrupter is exposed in the air, and its insulation level will vary with the temperature, humidity, and air in the air. The quality, transportation and installation process change, and there are many uncertain factors; composite insulation: the arc extinguishing chamber is placed in an insulating epoxy resin cylinder with insulating properties, but this insulation method does not completely wrap the high-voltage live part In general, the arc extinguishing chamber will also be affected by the external environment to a certain extent; solid-sealed insulation: the upper and lower ends of the arc extinguishing chamber are completely wrapped in an epoxy resin insulating cylinder. This method has a good insulation effect, but it has the effect of heat dissipation question
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[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0015] see figure 1 and figure 2 , the embodiment of the present invention includes:
[0016] A vacuum interrupter solid-sealed pole, including an insulating shell 1, an upper outlet terminal 2, a vacuum interrupter 3, a lower outlet terminal 4 and an insulating pull rod 5, the vacuum interrupter 3 is arranged inside the insulating enclosure 1, An epoxy resin layer 6 is provided between the insulating shell 1 and the vacuum interrupter 3, the upper outlet end 2 is connected to the static end 7 of the vacuum interrupter, and the lower outlet end 4 is connected to the moving end of the vacuum interrupter. 8 connection, the connection mode of the...
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The invention discloses a solid-sealed polar pole of a vacuum arc-extinguishing chamber. The solid-sealed polar pole of the vacuum arc-extinguishing chamber comprises an insulating outer shell, an upper wire leading-out terminal, a vacuum arc-extinguishing chamber, a lower wire leading-out terminal and an insulating pull rod, wherein the vacuum arc-extinguishing chamber is arranged inside the insulating outer shell; an epoxy resin layer is arranged between the insulating outer shell and the vacuum arc-extinguishing chamber; the upper wire leading-out terminal is connected to a fixed end of the vacuum arc-extinguishing chamber; the lower wire leading-out terminal is connected to a movable end of the vacuum arc-extinguishing chamber; and the 979movable end of the vacuum arc-extinguishing chamber is connected to the insulating pull rod. Through the way mentioned above, the solid-sealed polar pole is formed by externally coating silicon rubber for compression molding and pouring the epoxy resin at the inner part, so that compound insulation can be realized, and insulation level is improved greatly; in addition, the solid-sealed polar pole increases an insulating creep distance as the outer shell is like a spiral umbrella skirt.
Description
technical field [0001] The invention relates to the field of power system protection, in particular to a solid-sealed pole of a vacuum interrupter. Background technique [0002] The embedded pole is to embed the conductive parts of the vacuum interrupter and the circuit breaker into an easily curable solid insulating material such as epoxy resin to form a pole, so that the entire circuit breaker pole becomes an integral part. A general solid-sealed pole includes an upper outlet, a vacuum interrupter, a lower outlet and an epoxy resin insulator, the upper outlet is connected to one end of the vacuum interrupter, and the lower outlet is connected to the vacuum interrupter. Connect the other end. Generally, the creepage distance between the upper outlet end and the lower outlet end of the solid-sealed pole is small, and the insulation capacity will be affected by external conditions. [0003] In addition, the insulation method of the vacuum interrupter has gone through air in...
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IPC IPC(8): H01H33/66
Inventor 周惠明
Owner 周惠明