Pole column of medium-voltage vacuum circuit breaker and assembling method thereof
A vacuum circuit breaker and assembly method technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as loss of vacuum, lack of anti-twist, easy damage to bellows, etc., and achieve easy operation and anti-corrosion Simple torsional structure and cost reduction effect
Inactive Publication Date: 2013-11-20
SCHNEIDER ELECTRIC IND SAS
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Problems solved by technology
[0004] Most of the existing solid-sealed poles use anti-twisting vacuum bubbles, that is, the static and moving ends of the vacuum bubbles have their own anti-twist function, so that when the vacuum bubbles are embedded in the poles, it is not necessary to consider the anti-twist of the vacuum bubbles, and directly Torque can be applied to its moving end. Although this method is simple, from a structural point of view, the anti-button of the vacuum bubble itself is not reliable, and it is likely to gradually lose the vacuum after a certain number of times of running-in, thus losing its insulating ability.
[0005] In addition, most of the vacuum bubbles currently on the market do not have the anti-twist function. Once a small torque is applied to the vacuum bubble without anti-twist during the assembly process, the bellows of the vacuum bubble will be easily Damaged, thus losing the vacuum, the vacuum bubble can only be scrapped after losing the vacuum, and the price of the anti-twist vacuum bubble is generally higher than the price of the non-twist one
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Embodiment Construction
[0012] First refer to figure 1 A pole of a prior art vacuum circuit breaker is described. figure 1 is a side sectional view of a pole of a prior art vacuum circuit breaker. Such as figure 1 As shown, the pole of the vacuum circuit breaker includes an upper outlet seat 1 , a pole housing 2 , a vacuum bubble 3 accommodated in the pole housing 2 , and a lower outlet seat 6 . The upper outlet seat 1 and the lower outlet seat 6 are integrally cast with the pole housing 2 . The static end of the vacuum bubble 3 is electrically connected to the upper outlet seat 1 , and the movable end of the vacuum bubble 3 is electrically connected to the lower outlet seat 6 through the conductive clip 4 and the conductive spring 5 . The conductive clip 4 is roughly cylindrical, and is arranged in the hole of the lower outlet seat 6, and can slide freely in the hole. The conductive spring 5 is arranged around the conductive clip 4 and is arranged in a groove provided in the inner peripheral sur...
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The invention discloses a pole column of a vacuum circuit breaker. The pole column of the vacuum circuit breaker comprises an upper wire outlet (1), a shell (2), a vacuum tube (3), a conductive clamp (4), a conductive spring (5), a lower wire outlet (6) and an insulating pull rod (8), wherein key slots are formed at the bottoms of the conductive clamp (4) and the lower wire outlet (6). In addition, the invention also discloses a method for assembling the pole column of the vacuum circuit breaker. The method comprises the steps of inversing the pole column and arranging stop pins (7) in the key slots at the bottoms of the conductive clamp (4) and the lower wire outlet (6) during assembling, so that the conductive clamp (4) and the lower wire outlet (6) cannot rotate relatively. Through the structure and the method, a rotating torque can be prevented from being applied on the vacuum tube (3), so that the damage to the vacuum tube (3) can be avoided in the process of assembling the pole column.
Description
technical field [0001] The invention relates to a pole column of a vacuum circuit breaker, more specifically, to a pole column of a medium-voltage vacuum circuit breaker capable of preventing vacuum bubbles from twisting. Background technique [0002] Vacuum circuit breakers are important devices for control and protection in electrical equipment used in power generation stations, power distribution stations and substations, especially those places that require frequent operations. Usually, the existing vacuum circuit breaker consists of two parts, the pole and the operating mechanism. The poles include upper outlet terminals, vacuum bubbles, lower outlet terminals, insulating pull rods, etc. [0003] In the process of assembling the pole, the moving end of the vacuum bubble is usually connected with the conductive clip and the upper rod of the insulating pull rod through a double-ended stud. When the conductive clip is assembled with the vacuum bubble moving end by the st...
Claims
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IPC IPC(8): H01H33/66H01H11/00
Inventor 杨昌克方明周巧鸽
Owner SCHNEIDER ELECTRIC IND SAS