{HEAD ~ Three phase} alternating {TAIL ~ current circuit configuration}, for using a power supply for the synchronized timing for an electrical apparatus 
alternating
{ HEAD ~ Three phase } alternating { TAIL ~ current circuit configuration } , for using a power supply for the synchronized timing for an electrical apparatus
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH