Besoeker Senior Member Location UK Feb 2, 2013 #2 john2mcc said: what is the purpose of using differential ct in MV starter circuit? Click to expand... If you mean a core-balance CT it is usually for measuring earth (ground) currents.
john2mcc said: what is the purpose of using differential ct in MV starter circuit? Click to expand... If you mean a core-balance CT it is usually for measuring earth (ground) currents.