Control circuit of underground power monitoring of mine
A technology of downhole electric power and control loops, applied in the direction of program control, computer control, general control system, etc., can solve the problems of complex switch structure and poor protection performance, and achieve the effect of simple structure, high reliability and strong stability
Inactive Publication Date: 2013-06-19
XIAN GUANGRONG ELECTRICAL
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Problems solved by technology
[0002] With the improvement of the mining level of my country's coal mining enterprises, explosion-proof high-voltage vacuum electronic distribution switches for underground mines have been widely used, but there are problems of complex switch structure and poor protection performance.
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[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0011] see figure 1 , the present invention includes a voltage transformer group 1, a filter rectifier circuit 2, an A / D conversion circuit 3, and a controller 4 connected in sequence, and the controller 4 is connected with a display module 6 and an alarm circuit 5.
[0012] The above-mentioned voltage transformer group 1 is composed of high-voltage transformers and low-voltage transformers connected in series.
[0013] The above-mentioned controller 4 is connected with the upper computer through the RS485 communication interface.
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The invention relates to a control circuit of underground power monitoring of a mine. With improvement of mining levels of coal mine enterprises in China, explosion-proof type high-voltage vacuum electronic distribution switches for underground mines are widely used, but the problems that the switches are complex in structure and poor in protective performance exist. The control circuit comprises a voltage transformer set, a filtering and rectifying circuit, an analog-to-digital (A / D) conversion circuit, and a controller which are sequentially connected, wherein the controller is connected with a display module and a warning circuit. The control circuit is simple in structure, capable of monitoring online and warning in real time, and being good in performance, high in reliability and strong in stability.
Description
technical field [0001] The invention relates to a control circuit for power monitoring in underground coal mines. Background technique [0002] With the improvement of the mining level of my country's coal mining enterprises, explosion-proof high-voltage vacuum electronic distribution switches for underground mines have been widely used, but there are problems of complex switch structure and poor protection performance. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a control loop for coal mine underground power monitoring with simple structure, online monitoring and real-time alarm. [0004] For solving above-mentioned technical problem, the technical scheme that the present invention takes: [0005] A control circuit for underground coal mine power monitoring, which is special in that it includes a voltage transformer group connected in sequence, a filter rectifier circuit, an A / D conversion circuit, a controller, an...
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IPC IPC(8): G05B19/048
Inventor 张弘
Owner XIAN GUANGRONG ELECTRICAL