PERANCANGAN SISTEM MONITORING DAN PROTEKSI GANGGUAN INTERNAL BERBASIS IoT PADA CAPACITOR BANK
DOI:
https://doi.org/10.26740/jte.v15n3.p249-256Keywords:
capacitor bank, ESP32, Internet of Things, monitoring system, protection relayAbstract
Capacitor banks are used in industrial electrical systems to improve power factor and voltage stability. However, internal disturbances such as overvoltage, undervoltage, overcurrent, and overheating can reduce reliability and increase the risk of equipment damage. This study develops an Internet of Things (IoT)-based monitoring and protection system for capacitor banks using an ESP32 microcontroller. The prototype integrates a ZMPT101B AC voltage sensor, ACS712 AC current sensor, DHT22 temperature and humidity sensor, relay, buzzer, LCD, and Blynk dashboard. The ESP32 reads the sensors in real time, compares the measurements with predefined thresholds, and activates alarm and relay protection when abnormal conditions are detected. Testing showed that the system could monitor voltage, current, and temperature continuously, visualize data locally and remotely, and support automatic protection against internal electrical faults. During normal observation, voltage ranged from 220.05 V to 224.62 V, current from 10.56 A to 63.73 A, and temperature from 28.96 °C to 35.63 °C. The proposed system provides practical remote supervision and early fault response for capacitor bank panels.
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