Comparison of IoT Usage using the_PZEM-004T Sensor with the Power-Meter Panel on the ATS-AMF Panel Control System

Abstract

The national power plant (PLN) does not always supply electricity continuously. The transmission or distribution system causes disconnection. An automatic control called an ATS (automatic-transfer-switch) and an AMF (automate-main-failure) are required to prevent a shutdown, which functions to turn on the genset when the PLN source is turned off and to turn off the gensets when PLN sources are turned on again. Objectives Researchers are exploring methods to automatically control Internet of Things (IoT)-enabled ATS-AMF panels, enabling generator set operators to monitor their performance during PLN on/off cycles. Researchers conduct experiments on the ATS-AMF control panel and IoT control, employing the Nodemcu-ESP8266 microcontroller as the input and output control centre and utilizing the PZEM-004T sensor to quantify and display the parameters of current, voltage, power, energy, frequency, and power factor. After comparing the test results from the PZEM-004T sensor with the power meter KWS AC301 using PLN and Genset with 5 living loads, we found that the error rate for voltage was 0.8%, the accuracy was 99.2%, the error rate for current was 0.65%, the precision was 99.35%, the error rate for power parameters was 0.08%, the accuracy was 99.18%, the error rate for power factor parameters was 0.4%, the accuracy was 99.6%, the error rate for frequency parameters was 0.6%, the accuracy was 99.4%, and the error rate for energy parameters was 8.5%, which was 91.04%. This system is a recommendation for more efficient load setting, which can reduce operating costs.