Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Patent
1992-05-15
1994-01-11
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of ground fault indication
324708, 324711, G01R 3114, G01R 2726
Patent
active
052785122
ABSTRACT:
A method and apparatus is disclosed for continuously monitoring the resistance of a grounding conductor to neutral conductor circuit of a power distribution system. The apparatus compares a parameter of a damped sinusoidal waveform from a shock excited resonant circuit coupled to the grounding conductor and neutral conductor at a branch circuit outlet of the power distribution system with a predetermined parameter from the same resonant circuit discharging into an external circuit having a predetermined resistance. The apparatus indicates an undesired grounding conductor resistance.
REFERENCES:
patent: 2601491 (1952-06-01), Baker
patent: 2988709 (1961-06-01), Janssen
patent: 3234461 (1966-02-01), Trent et al.
patent: 3544893 (1970-12-01), Savin et al.
patent: 3810003 (1974-05-01), Portoulas
patent: 3990040 (1976-11-01), Gleitz et al.
patent: 4242631 (1980-12-01), Hall
patent: 4362988 (1982-12-01), Weimer
patent: 4386338 (1983-05-01), Doyle et al.
patent: 4446427 (1984-05-01), Lovrenich
patent: 4518945 (1985-05-01), Doyle et al.
patent: 4568997 (1986-02-01), Bienwald et al.
patent: 4595894 (1986-06-01), Doyle et al.
patent: 4808911 (1989-02-01), Oaks
patent: 4810950 (1989-03-01), Young
patent: 4958131 (1990-09-01), Thorn
patent: 4973912 (1990-11-01), Kaminski et al.
ECOS.RTM., Ground Check.TM., Specifications.
W. A. Moncrief, Outlet Testers Save Equipment, Power Quality, pp. 24-25 (Mar./Apr. 1991).
News Release, Smart Static Ground.TM. Monitor, Pilgrim Electric Company.
Kujala and Pettersson, LAN Power Quality Problem Solutions Require Attention to Grounding and Transients, Power Quality, pp. 20-24 (Sep./Oct. 1991).
Regan Maura K.
Wieder Kenneth A.
LandOfFree
Apparatus and method for continuously monitoring grounding condu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for continuously monitoring grounding condu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for continuously monitoring grounding condu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1633859