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