coupling {TAIL ~ a second comparator} to said second motor generator set for comparing its actual output power, P2A, with {HEAD ~ said signal} representing said established predetermined minimum output power, PMIN, and generating a second output signal only when P2A <PMIN, and 
coupling { TAIL ~ a second comparator } to said second motor generator set for comparing its actual output power , P2A , with { HEAD ~ said signal } representing said established predetermined minimum output power , PMIN , and generating a second output signal only when P2A < PMIN , and
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH