This circuit interrupts the power supply when grounding is missing. The circuit is from an old documentation (from the 80's) using current transformers and other components of the time.
This precision circuit was suggested by General Electric in 1980s documentation. The circuit can be...
This circuit was obtained in a 1979 101 Electronics Projects. The circuit can be assembled easily,...
Originally, this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...