Abstract :
PLN (State Power Plant) is not always continuous in penyaluranya, a
time must occur blackout that may be caused by interference on the transmission
system or distribution system. To anticipate from the blackout, then used
automatic control system called ATS (Automatic Transfer Switch) and AMF
(Automatic Main Failure) or interlock system PLN - Genset. ATS and AMF can be
used to control the status of generator such as voltage and frequency of generator
output, fuel level, and temperature of generator. ATS and AMF will release the
supply to the load when the voltage is in the normal state of 220 volts, and release
to the load when the generating frequency is in the normal state of 50 Hz, and the
time it takes the genset to supply the load after the starting is 5-8 seconds using
the generator 220 Volt.