10kV distribution network high-voltage metering device based on electronic-type sensor
A high-voltage metering and electronic technology, applied in the field of electric power, can solve the problems of large volume, easy saturation, low precision, etc., and achieve the effect of high precision, difficult saturation, and wide measurement range
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[0028] In order to better understand the present invention, we will further elaborate the present invention below in conjunction with specific examples.
[0029] like figure 1 As shown, the 10kv distribution network high-voltage metering device in the present invention is connected to the output end of the electronic sensor, and the measuring unit is connected to the voltage and current signal interface of the electronic sensor, and the small signal of 1.876v output by the primary side electronic voltage transformer Further conditioning to form a 0.2v signal, while further conditioning the 1v small signal output by the primary side electronic current transformer to form a 0.2v signal, and conditioning this 0.2v single-ended small signal into a complete differential signal input to the metering circuit, And output to the data processing unit through the pulse output circuit, after being processed by the CPU core circuit, the data is connected to the power distribution automatio...
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