Electrical singular point monitoring device based on frequency energy proportion
A monitoring device and singular point technology, applied in the direction of frequency measurement device, digital measurement technology for measurement, etc., can solve the problems of insufficient real-time performance of power monitoring, achieve high real-time performance, and reduce power accidents
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[0048] The power supply module in this example adopts the switching power supply scheme to supply power for the whole system, and the data conversion module uses a 12-bit analog-to-digital converter and a central processing unit (STM32F429 I GT6 single-chip microcomputer). Group. The application scenario is normal operation voltage: 380V; current: 5A. Therefore, the parameters of the voltage transformer in the signal processing module are 380:100; the current can be directly connected to the system. The connection mode of the system is to connect the STM32F429IGT6 single-chip AD sampler with the output of the signal processing module. We use the 485 debugging device as the human-computer interaction device, and the 485 debugging device is connected to the central processing unit through the communication module. The data conversion module and the fault discrimination module run on the central processing unit, and are connected in the program in the form that the data conversi...
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