Abstract :
The use of electricity in simple housing is not limited to lighting, because
household appliances such as air conditioners, water pumps, refrigerators,
electric heaters, televisions, and various other electronic appliances use electrical
energy. In simple houses generally have an installed electric power capacity that
varies, depending on the ability of consumers to pay electricity bills. In some
simple housing the installed electric power capacity is only 450VA, but the load
used sometimes exceeds the installed electric power capacity so that the MCB trip
occurs. Termination of overload by using the Arduino Mega as a microcontroller
by dividing the load into priority loads and non-priority loads, the YHDC SCT -
013 - 000 current sensor as an input device where this sensor functions to
measure the current flow in the load and the relay as an output device that
functions as over load breaker. The working principle of this overload breaker is
if the measured current value on the current sensor has exceeded the specified
current limit, then Arduino Mega will provide an input signal to the relay to
disconnect the non-priority loads so as not to trip on the MCB. From the various
analyzes that have been described, it can be concluded that the duration of the
normal conditions to the condition of load shedding can be influenced by 3 things,
namely: the amount of pulses, the number of installed loads and the installed
load. So that a pulse of Rp 100,000 takes 1.5 hours for load shedding conditions
to be created so as to turn off non-priority loads, while when pulse input of Rp
50,000 is added the magiccom installed load takes 45 minutes for load shedding
conditions to be created and the load -Non priority load OFF.