Protecting device and protecting method for power grid of medium-voltage system
A protection device, medium voltage technology, applied in the field of electric power grid, can solve the problems of production, user inconvenience, waste of resources of the company, etc., achieve the effect of realizing protection function and saving production cost
Inactive Publication Date: 2014-12-10
ANHUI XINLONG ELECTRICAL
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[0002] With the development of power technology, comprehensive protection has been widely used in medium voltage systems, and it is responsible for information collection, performance protection and execution of control commands. It is like the "hand" and "eye" of the entire system device, while the traditional The solidification of the comprehensive protection function requires different protection devices to be selected according to different engineering purposes, which brings inconvenience to production and users, and at the same time causes a great waste of company resources
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[0015] Referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention include the shape, structure, mutual position and connection relationship of each part, the function and working principle of each part, and the manufacturing process of the various components involved. And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
[0016] Such as figure 1 As shown, the general medium voltage system power grid protection device includes a microprocessor, a key acquisition unit, an AD conversion unit, a current and voltage acquisition unit, an input and output acquisition unit, a display drive unit, a display module and a memory. The key acquisition unit passes The AD conversion unit is connected to the microprocessor, and the mi...
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The invention relates to a protecting device and a protecting method for a power grid of a medium-voltage system and belongs to the technical field of electric power and power grids. The protecting device comprises a microprocessor, a key acquisition unit, an AD (analog-digital) conversion unit, a current and voltage acquisition unit, an input and output acquisition unit, a display driving unit, a display module and a USB (universal serial bus) interface module, wherein the key acquisition unit is connected with the microprocessor through the AD conversion unit, the microprocessor is connected with the current and voltage acquisition unit, the input and output acquisition unit, a memory and the display driving unit, the display module is connected with the microprocessor through the display driving unit, and the USB interface module is connected with the microprocessor. The protecting device has the advantages that hardware test is required once, and corresponding engineering protecting software can be downloaded via USB interfaces according to different engineering requirements, so that different protecting functions can be achieved, and production cost is saved; clients can download corresponding protecting templates as required, so that the protecting functions are achieved.
Description
technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to a general protection device and method for a medium-voltage system grid. Background technique [0002] With the development of power technology, comprehensive protection has been widely used in medium voltage systems, and it is responsible for information collection, performance protection and execution of control commands. It is like the "hand" and "eye" of the entire system device, while the traditional The solidification of the comprehensive protection function requires different protection devices to be selected according to different engineering purposes, which brings inconvenience to production and users, and at the same time causes a great waste of company resources. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a general medium-voltage system power grid protection device and meth...
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IPC IPC(8): H02H7/28
Inventor 束龙胜蒋丽丽张希高峰杨先忠陈坚伟孙传峰车洪亮张金凤朱小勇张春芽刘雪侠
Owner ANHUI XINLONG ELECTRICAL