good morning ! a current transformer with ferrites of unknown origin and virtues is a very risky thing. As these cores are widely available on swapmeets its a lure to use them. But they can be tested
... and never forget to wind a 'secondary' over the current transformer, always terminated with low resistance. Otherwise you will quickly saturate it, which is something that NO current transformer
Leaving the secondary of a current transformer open-circuit once caused half a city to be blacked out when the 400kV grid network tripped http://www.g4jnt.com/Hams_Hall_Investigation_Report.pdf Quit
Moin, A current transformer without a secondary winding is no current transformer but a simple coil. And most likely a bad one. Current transformer is by definition a transformer that has nearly a sh
