High-voltage switch for high-voltage power supply utilizing infrared remote-control operation used under coal mine pit

Abstract

This invention discloses a high voltage switch operated with infrared remotely used in coal mines characterizing in the supply and breaking unit, and a parameter setting and modifying device is a window with an infrared receiver attached to a high voltage switch box and an infrared remote control emitter matched to it, in which, the output end of the infrared receiver is connected with the input of a single-chip processor, the output of which is connected to the executing unit of an amplifying circuit, which can modify operation parameters on-line without opening the door so as to ensure continuous supply.

Description

technical field [0001] The utility model belongs to the field of high-voltage switch technology for coal mines and microelectronics technology, and is precisely a technology combining microelectronics technology and high-voltage switchgears for coal mines. Background technique [0002] The safe operation of underground electrical equipment in coal mines is an important guarantee for underground safety production. Carelessness is not allowed, and a slight negligence will lead to disasters. Underground high-voltage switches in coal mines generally use integrated protectors to realize the protection and measurement and control functions of high-voltage equipment during the power supply process. The original protectors have many safety hazards and are inconvenient to use. [0003] 1) The original protector can only complete the function of modifying the operating parameters, and cannot be modified during the power supply operation; the operating parameter...

AI Technical Summary

Problems solved by technology

Underground high-voltage switches in coal mines generally use integrated protectors to realize the protection and measurement and control functions of high-voltage equipment during the power supply process. The original protectors have many potential safety hazards and are inconvenient to use.

[0003]1) The original protector can only complete the function of modifying the operating parameters, and cannot be modified during the power supply operation; the operating parameters refer to the In the event of a short-circuit fault or other fault types, the high-voltage switch can be tripped in time and accurately to cut off the power supply to prevent the accident from expanding. The operating parameters are stored inside the comprehensive protector, which is determined according to the operating load of each underground high-voltage switch Numerical values ​​calculated from different sizes

[0004]2) The modification of the operating parameters of the original protector can only be carried out by adjusting the toggle switch similar to multiple selection on the panel of the comprehensive protector Modification, the modification and setting of operating parameters can only be set according to the multiple of the rated current, such as 1.6 times, 2 times, 3 times, etc., so there are disadvantages of large error and narrow setting range;

To modify the operating parameters of the integrated protector, the door of the high-voltage switch must first be opened. Considering the particularity and safety of underground production, the prerequisite for opening the door of the high-voltage switch is that the power must be cut off. This not only makes the operation process very complicated, but also affects normal operation. The continuity of power supply affects the safety production of coal mining enterprises and also affects the safety benefits of enterprises

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