Rancang Bangun Modul Sistem Proteksi Kelistrikan pada Gedung Tower Airnav Unit Dekai

Saragih, Jovi Nandra
Koswara, Iwan
Juliarta, I Wayan

Jurnal Ilmiah Universitas Batanghari Jambi
Vol 25, No 3 (2025): Oktober

This research aims to design and develop a microcontroller-based electrical protection system that is able to detect and handle voltage surges (overvoltage) and voltage drops (undervoltage) automatically. This system uses a PZEM-004T sensor, an Arduino Mega 2560 microcontroller as the main controller, and a Solid State Relay (SSR) to disconnect or connect the electric current according to the detected conditions. This research uses a User Trial test. The test was carried out by comparing the measurement results of the PZEM-004T sensor to a digital multimeter, showing an average difference of less than 3%, indicating good sensor accuracy. When the voltage exceeds 250V or drops below 190V, the SSR successfully disconnects the current with a response time of less than 0.5 seconds.