Abstract :
Sudden power outage caused by drop voltage disorder in Electrical Building
Politeknik Negeri Bengkalis often happen without predictable first by PLN officer.
This disorder requires information (phone, SMS) from the campus, as well as the
manager of electrical building so that required a smart system. This research will
make the monitoring system of power capacity in building of electro equipped with
arduino based logger data. This research uses AC current sensor, data logger and
GSM shield to provide information if there is disruption of power imbalance in
Electrical Building. This monitoring system will quickly send data to mobile PLN
officer or PLN officer any changes in current sensor status. The data stored in the
data logger can also monitor the maximum of the last month for the purposes of the
analysis of the cause of the disturbance and the performance of officers (duration of
time) in improving the imbalance of power in the Elekro Building. This research can
also facilitate the work of PLN in monitoring the disturbance that occurs in every
existing building on campus Politeknik Negeri Bengkalis, from the results of testing
the power capacity monitoring tool found the average value error of measurement
current for each phase as follow: R=3.67%, S=5.05%, T=4.25%. As for the value of
the percentage of SMS testing, the success rate of testing was 80%