Monitoring of Power Measured by Static Energy Meters for Observing EMI Issues

Static energy meters are becoming the standard for measuring the consumed energy in households. Previous research showed that static meters can give faulty energy readings. The blinking light emitting diode (LED) in the meter gives, in many meters, a factor 1000 more accurate reading compared to the display readings. In case possible misreading has to be investigated a series energy meter would be useful, with the additional possibility to readout the blinking LED. This would allow detailed research on the behavior of static energy meters and test possible sources of interference, especially in cases where the energy consumption is low, and the risk of deviation could be high. Such a monitoring system has been designed and implemented allowing to monitor a series of static meters and the consumed energy such that a source of interference can be observed directly.