Why does the inverter display more power than the meter reading?
According to the normal error, the inverter current measurement accuracy is -0.5%, taking into account the error of the hardware sampling circuit and software technology. The overall error is calculated as +1% (inverter value is 1% larger than the actual value); the error of the meter is based on -1% (the meter value is 1% smaller than the actual value). The error at this time should be about 2%. (Do not consider the line loss, the maximum value of the instrument error)
Assume that a 10KW power station can send 60 kWh of electricity a day, 2% of the error is 1.2 kWh per day, and about 30 kWh per month. This situation is within a reasonable range!
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