Contact box for high-voltage switch cabinet
A high-voltage switchgear and contact box technology, which is applied in the direction of guard plates/shutters to prevent contact with contacts, to achieve reliable fixation, prevent offset discharge, and ensure safe, stable and reliable operation
Inactive Publication Date: 2013-04-03
浙江省开化七一电力器材有限责任公司
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Problems solved by technology
[0003] In order to solve the above-mentioned problems in the prior art, the present invention aims to provide a contact box for high-voltage switchgear, which is especially suitable for use under high current conditions, and has a cabinet mounting plate that can be fixed reliably and can effectively prevent deviation. Displacement discharge, uneven electric field and other phenomena, thereby ensuring the safe, stable and reliable operation of high-voltage switchgear
Method used
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[0013] see figure 1 , figure 2 . Viewed as a whole, the structure of an embodiment of the utility model includes an insulator 1 that is open at one end and closed at the other end, that is, an insulator 1 that is open on the left and closed at the right end 6 . A mounting flange 3 is formed after the mouth edge of the left opening protrudes outwards, and the shape of the mounting flange 3 is generally square. There are a plurality of screw hole inserts 31 on the mounting surface of the mounting flange 3 , and these screw hole inserts 31 are generally arranged on the four corners of the square mounting flange 3 . As the innovation of the present invention: said these screw hole inserts 31 are arranged in the convex column 32 that protrudes from the said installation surface, and the periphery of said convex column 32 is provided with a split cover 4, which The middle part of the cover 4 has a through hole for receiving the fixing bolt.
[0014] When implementing it:
[00...
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The invention relates to a contact box for a high-voltage switch cabinet, comprising a cylindrical insulator. One end of the insulator is provided with an opening, and the other end is sealed; the edge of the opening of the insulator is raised circumferentially so that a mounting flange is formed; and the mounting surface of the mounting flange is provided with a plurality of screw-hole embedded components. The contact box for the high-voltage switch cabinet is characterized in that the screw-hole embedded components are arranged in a column raised from the mounting surface, the periphery of the column is provided with a cover, and the middle part of the cover is provided with a receiving through hole. When the contact box for the high-voltage switch cabinet is in practical use, a cabinet mounting plate is clamped on the column in a close fit way through corresponding through holes, and then the cover is fixed by bolts with the lower ringlike surface of the cover being compressed on the concave part of the cabinet mounting plate. Through the horizontal positioning of the column and the vertical and horizontal positioning of the cover, the cabinet mounting plate is fixed very reliably, the phenomena of offset discharge and nonuniform electric field are avoided effectively, and the safe, stable and reliable operation of the high-voltage switch cabinet are guaranteed.
Description
technical field [0001] The invention relates to a contact box for a high-voltage switch cabinet, in particular to a CTH6-12 contact box. Background technique [0002] The existing structure of a contact box for a high-voltage switchgear includes a cylindrical insulator, one end of which is open and the other end is closed, and is integrally molded by epoxy compound. The periphery of the opening protrudes outwards to form a mounting flange. There is a skirt on the wall of the cylindrical body, a static contact installation insert is provided at the top wall of the inner cavity, and a through groove is opened on the radial side opposite to the top wall of the cylindrical body, and the through groove is used to receive the female The busbar is the outlet of the female discharge line. When installing, the busbar extends into the cylindrical inner cavity through the through groove and connects with the static contacts. The moving contact arm of the circuit breaker extends into t...
Claims
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Inventor 操隆震方蕾应兵荣余红英
Owner 浙江省开化七一电力器材有限责任公司