Digital Energy Meter Measurement Performance Testing Method Based on Noise Testing
By discussing the influence of noise on the metering performance of digital watt-hour meter,a detection method based on noise test is proposed.This method monitors the output of electric energy meter and records the error data by injecting noise signals with different frequencies and amplitudes.Finally,the error is analyzed to evaluate its anti-interference ability.The experimental results show that high-frequency noise and large-amplitude noise significantly affect the measurement accuracy of the watt-hour meter,and different sampling methods show different anti-noise performance.
digital electricity metersnoise testingmeasurement performance
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