Susceptibility of Static Energy Meters due to Amplifier Clipping Caused by a Rogowski Coil

Static energy meters installed in households, used for billing purposes of the consumption, have shown errors due to conducted electromagnetic interference coming from appliances household situations. This resulted over- and underestimations bill, even a perceived generation. The currents causing are known be nonlinear pulsed with fast slopes. article shows that clipping amplifier, following Rogowski coil, which is as current sensing element, results distorted measurements. Due nature current, output coil exceeds maximum input voltage resulting at amplifier. clipped signal then integrated digital chain, an offset current. Hence, higher or lower calculation, depending on phase firing angle fastest edge pulse. It found parameters, such slew rate, rise fall times, angle, correlated static meters.