Abstract :
A sudden power outage or disturbance caused by voltage drop or voltage loss in the
electrical building often occurs and is difficult to detect by PLN officers. This disorder requires
information
(telephone, SMS
) from the campus so that an intelligent system is needed. This study
will create a voltage monitoring system in an electrical building. This study uses a voltage sensor,
data logger and GSM SIM800L to provide information if there is interference with the electrical
building. SIM800L GSM module is very influential on the amount of voltage and current supplied
to the process of sending SMS, so that the minimum voltage in this module is 4 volts and current is
3 amperes. This monitoring system will quickly send data to the mobile phone officer of the PLN
or PLN partner officer whenever there is a change in the voltage sensor status. Data stored in the
data logger can also be monitored for a maximum of one month for the purpose of analyzing the
cause of the disturbance and the performance of the officer
(duration of time
) in repairing the
electrical building. This research can also facilitate the work of PLN in monitoring and can fix it
quickly if there are problems with the voltage of the electrical building so as to minimize the
system of average interruption duration index
(SAIDI
) so that the continuity of the distribution of
electrical energy is getting better. when collecting data for 5 days in the electrical building by
simulating a different room, the Power Electronics Laboratory and the Interface Laboratory with
SAIDI results on phase R = 0.012 minutes/customer/5 days/phase, S = 0.010 minutes/customer/5
days/phase, T = 0.008 minutes/customer/5 days/phase.