Patent ID: 9664712
Date: 2017-05-30
CPC Classifications: G01R

Claim:
1. A system for sensing current through a conductor and outputting to a meter, the system comprising: an optical module including a light source for directing an optical signal in an optical path around the conductor and producing an optical module signal that is a voltage proportional to the current through the conductor; and, a cutout module including a number of circuits configured to receive said optical module signal that is the voltage proportional to the current through the conductor from the optical module and output a cutout module signal to the meter, wherein said cutout module is configured to convert a root mean squared (RMS) value of said optical module signal to a direct current (DC) signal, wherein said cutout module is further configured to output the cutout module signal as the optical module signal unmodified in response to said DC signal of the optical module signal being above a threshold value and said cutout module is further configured to output a zero voltage optical module signal in response to said DC signal being below the threshold value.