Method of detecting a ground fault and electrical switching...

Details Method of detecting a ground fault and electrical switching... Method of detecting a ground fault and electrical switching...

G - Physics

01

R

G01R 31/02 (2006.01) H01H 83/02 (2006.01) H02H 3/16 (2006.01) H02H 3/347 (2006.01)

Patent

CA 2630760

A circuit breaker includes for each neutral and phase power conductor, a current sensor sensing an alternating current flowing in a corresponding power conductor, a comparator determining whether the sensed alternating current is positive or negative, a rectifier rectifying the sensed alternating current to provide a rectified current value, and an analog-to-digital converter converting the rectified current value to a signed digital value having a positive sign. A processor cooperates with the comparators and the analog-to-digital converters and includes a routine that changes the positive sign of the signed digital value to a negative sign if the sensed alternating current is negative, adds the signed digital value for each power conductor to provide a sum, and employs the sum to determine whether to output a ground fault signal. The processor further cooperates with an operating mechanism to trip open separable contacts responsive to the ground fault signal.

Affiliated with

Also associated with

Rating

Method of detecting a ground fault and electrical switching... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting a ground fault and electrical switching..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting a ground fault and electrical switching... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1478405