In response to the load control signal, the controller interrupts {HEAD ~ supply} of power from {TAIL ~ the power system} to the first load, thereby reducing demand on the power system 
In response to the load control signal , the controller interrupts { HEAD ~ supply } of power from { TAIL ~ the power system } to the first load , thereby reducing demand on the power system
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH