The impact of electric disturbance at frequencies 2-150 kHz on analogue kilowatt-hour meter

Along with the times and technology, more often we find housing or offices that use a smart home system or smart building that integrates electrical appliances at home and offices into a single system, for example, lighting, air conditioning, security systems, etc. The use of electrical equipment that uses a system with an inverter technology can trigger disturbances related to the frequency switching used. The disturbance may affect the energy measured by energy meter. The study observes the impact of electric disturbances at frequencies range of 9-150 kHz on kWh meter. The disturbances are generated manually using Personal Computer and injected to the system through coupling network device. The disturbance generated has single and multifrequency disturbance in the range of 9-150 kHz. The result shows that there are inaccurate measurements on the analogue kWh meter when exposed to disturbances with an average percentage error of 2.91%. What can be done in the future is to install filters to reduce disturbances at these frequencies so as not to interfere with the performance of these devices.