Transformer integrated outdoor high voltage vacuum circuit breaker
A technology of vacuum circuit breakers and transformers, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve problems such as equipment burnout, injury to operators, low rated current level limit, etc., to reduce product size, The effect of increasing the rated current level
Active Publication Date: 2016-07-13
LIAONING YIDE IND GRP CO LTD
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Problems solved by technology
The external structure of the transformer takes up a lot of space, and the structure of the high-voltage connector leading from the high-voltage working part to the current transformer has great installation hazards. Taking the high-voltage lead to the low-voltage operation box as an example, once the insulation is damaged, it will hurt the operator. , will also burn all the equipment in the background integrated control room
The structure inside the control box also greatly increases the volume of the control box, and the electrical connection and installation structure are extremely complicated
Secondly, the existing technology has a low rated current level limit, and it is difficult to achieve a larger rated current level after reaching 1250A
Method used
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Embodiment Construction
[0012] The outdoor high-voltage vacuum circuit breaker with built-in transformer integrated in the patent application of the present invention includes a control box 2 and a pole part 1 arranged on the upper part of the control box 2 , and the control box 2 is supported by a bracket 4 . The upper insulating cavity 10 in the pole part 1 encapsulates the vacuum interrupter 13, the upper static contact of the vacuum interrupter 13 is conductively connected with the upper terminal board 14 on the top, and the insulating pull rod of the lower movable contact 16 is connected to the output part of the transmission mechanism of the control box 2 through the lower insulating cavity 11. The output part of the transmission mechanism is usually the crank arm of the drive shaft. The three-phase insulating pull rod 16 is connected to the crank arm of the drive shaft. stop running action. The upper and lower insulating cavities 10 and 11 of each phase pole part 1 are fixedly connected with t...
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The invention provides a mutual inductor centrally mounted integrated outdoor high voltage vacuum circuit breaker. A central mutual induction integrated bin is fixedly connected between an upper insulation cavity and a lower insulation cavity in a pole; a mutual induction lead part is connected between the central mutual induction integrated bin and a maneuvering box; a current mutual induction part is arranged in the central mutual induction integrated bin; a mutual inductor coil of the current mutual induction part is arranged in a mutual inductor metal ring slot; a high voltage resistance insulation layer fills a gap between the mutual inductor coil and the mutual inductor metal ring slot; a conductive section on the upper part of an insulation pull rod is in sliding conductive connection and matching with a central pipeline. By the technical scheme, the current mutual inductor is integrated in the high voltage environment in the pole, the whole product structure is effectively integrated and simplified, the technical aim that the mutual induction detection work is stable, reliable and durable is fulfilled, and the product volume is greatly reduced.
Description
technical field [0001] The patent application of the present invention relates to an outdoor high-voltage vacuum circuit breaker, in particular to an outdoor high-voltage vacuum circuit breaker with a rated working voltage of 35KV or above. Background technique [0002] The main structure of the outdoor high-voltage vacuum circuit breaker includes a mechanical control box and a pole part installed on the upper part of the control box. The control box can be supported and installed by the bottom bracket. The upper part of the insulating cavity at the pole part is sealed with a vacuum interrupter. The upper static contact of the vacuum interrupter passes through the top of the insulating cavity to form a conductive base for assembling the upper terminal board. The lower moving contact passes through the middle conductive cavity. The small short axis of the motor leads out to the insulating pull rod of the lower insulating cavity, and is connected with the operating mechanism o...
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IPC IPC(8): H01H33/66
Inventor 杜玉乐钟启辉杜玉园于鹤田丛俊赵允芳王洋王治财蔡立荣
Owner LIAONING YIDE IND GRP CO LTD