H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/26 (2006.01) H01R 13/713 (2006.01) H02H 1/00 (2006.01) H02H 3/00 (2006.01) H02H 3/33 (2006.01) H02H 3/44 (2006.01)
Patent
CA 2444159
There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals leaving separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second paths is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as "SINE" is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform "DELTA". DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro- controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.
Bradley Roger M.
Kolker David
Mernyk Ross
Leviton Manufacturing Co. Inc.
Ridout & Maybee Llp
LandOfFree
Arc fault detector with circuit interrupter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arc fault detector with circuit interrupter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc fault detector with circuit interrupter will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1467362