Analog based first and fast second pulse removal system

Details Analog based first and fast second pulse removal system Analog based first and fast second pulse removal system

1998-11-19

2000-10-03

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 78, H02H 318

Patent

active

061281700

ABSTRACT:
A silicon controller rectifier based analog circuit 10 that can be utilized in connection with known analog based residential arc detecting circuit breakers to reduce false tripping of the breakers is described. By eliminating the first current pulse in the time attenuated pulse counting circuit 10 as well as fast, subsequent cycle pulses, the possible tripping due to the one or two pulse lamp burnout false trips is substantially eliminated. The circuit 10 eliminates a first arc pulse in all conditions and a second arc pulse if it quickly follows the first pulse, thus reducing the breaker sensitivity as little as possible while significantly reducing, if not eliminating, false tripping when two consecutive high current arc pulses are generated.

REFERENCES:
patent: 4376243 (1983-03-01), Renn et al.
patent: 5910872 (1999-06-01), Marmonier et al.
patent: 5940256 (1999-08-01), MacKenzie et al.
"Arc Fault Circuit Interrupters," Dr. Wolfgang Daum, UL 1699-1, Section 13, Nov. 1996.

Affiliated with

Also associated with

Rating

Analog based first and fast second pulse removal system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog based first and fast second pulse removal system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog based first and fast second pulse removal system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-201605