A circuit breaker bandwidth limits a sensed rate of change of current, di/dt, in the neutral conductor of a protected electrical system and fullwave rectifies the bandwidth limited di/dt signal for comparison with an instantaneous trip reference signal. The bandwidth is selected to provide a selected...http://www.google.fr/patents/US5224006?utm_source=gb-gplus-shareBrevet US5224006 - Electronic circuit breaker with protection against sputtering arc faults and ground faults
Electronic circuit breaker with protection against sputtering arc faults and ...
