{TAIL ~ The current} in the inductor is measured, and, by applying an appropriate constant of proportionality, the exciting current of {HEAD ~ the current transformer} is determined 
{ TAIL ~ The current } in the inductor is measured , and , by applying an appropriate constant of proportionality , the exciting current of { HEAD ~ the current transformer } is determined
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH