Online monitoring and data logging power quality parameters of Low Voltage Distribution Panel (LVDP) on industrial system

Electrical energy is an important component in an industry, that is needed by electrical equipment / machines that exist in the industry. Currently, the majority of electrical energy is produced from fossils, almost 85% of all energy comes from fossil fuels. Therefore, efficiency application of electricity loads in industries need to be logged and analyzed. To make electricity load efficiency possible, it can be done by monitoring and logging real-time electricity loads in the industry. So that, the electrical power consumed can be analyzed. In this paper, a 3-phase electricity monitoring system is builder for Low Voltage Power Distribution (LVDP) that can be monitored anytime and anywhere via internet for the needs of electricity quality analysis. Monitoring parameters are voltage, current, real power, apparent power, power factor, IHD voltage and current, and voltage and current THD for each phase. The system uses sensor ZMPT101B to get voltage value each phase and Current Transormator (CT) to get current value each phase. Then, that sensor value calculates with Arduino and raspberry pi. Arduino to calculate real power, apparent power, and power factor. Raspberry pi to calculate IHD voltage, current and THD voltage and current. That variables send to database and display on the web. Error reading of voltage sensor is found on average error 0.00254% compared to multimeter. For current sensor, the average error is 0.0074%. On the user interface, all functions are running well including the addition of devices, as well as monitoring parameters of each phase, so that, it can be utilized for the needs of electrical analysis, which means the power consumed and the malconsumed can be known.